How to change playback rate for use with JACK

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I'm using jack2 on Ubuntu 16.04 LTS by installing jack, jack-tools and qjackctl from the official repositories.



My USB sound connection feeds 44100 Hz into jack. Jack is configured (through qjackctl) to run at 44100 Hz. However, it automatically changes to 48000 Hz on run, causing the pitch from the speakers to be about 2 notes higher and the following message to show:



ERROR: playback and capture sample rates do not match (48000 vs. 44100)


I've read through tons of (very old) discussion about sampling rates having to do with jack, alsa, or pulse audio, and adding a file called .asoundrc which doesn't seem to do anything anymore. But either way, this is all out of my league. I just want to change the "playback sample rate" to 44100 Hz. Can someone explain what steps I should take in 2018 (or 2016 - Ubuntu 16.04) just so jack won't play back my 44100 Hz input as 48000 Hz?



USB device:



$ cat /proc/asound/card1/stream0 
KORG INC. ToneLabST at usb-0000:00:14.0-1, full speed : USB Audio

Playback:
 Status: Stop
 Interface 1
 Altset 1
 Format: S16_LE
 Channels: 2
 Endpoint: 1 OUT (ADAPTIVE)
 Rates: 44100

Capture:
 Status: Stop
 Interface 2
 Altset 1
 Format: S16_LE
 Channels: 2
 Endpoint: 2 IN (ASYNC)
 Rates: 44100


Possibly related reports:



  • github.com/rncbc/qjackctl - Would displaying both sampling rates avoid confusion?

  • github.com/jackaudio/jack2 - Jack won't change sample rate

Update August 2018



I did a fresh installation of Ubuntu 18.04 LTS and tried this again.



sudo apt update
sudo apt install jack jack-tools qjackctl 
env QT_SCALE_FACTOR=1.5 qjackctl


At this time I'm plugging in the ToneLab ST USB cable. I'm experiencing the same problem. Notice how the frequencies mismatch.



Starting jack server...
JACK server starting in realtime mode with priority 10
self-connect-mode is "Don't restrict self connect requests"
Acquired audio card Audio1
Acquired audio card Audio0
creating alsa driver ... hw:PCH|hw:ToneLabST,0|128|3|44100|0|0|nomon|swmeter|-|16bit
configuring for 44100Hz, period = 128 frames (2.9 ms), buffer = 3 periods
ALSA: final selected sample format for capture: 16bit little-endian
ALSA: use 3 periods for capture
ALSA: final selected sample format for playback: 16bit little-endian
ALSA: use 3 periods for playback
ERROR: playback and capture sample rates do not match (48000 vs. 44100)


By request, here's aplay -l:



**** List of PLAYBACK Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: CX8200 Analog [CX8200 Analog]
 Subdevices: 0/1
 Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0]
 Subdevices: 1/1
 Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 7: HDMI 1 [HDMI 1]
 Subdevices: 1/1
 Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 8: HDMI 2 [HDMI 2]
 Subdevices: 1/1
 Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 9: HDMI 3 [HDMI 3]
 Subdevices: 1/1
 Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 10: HDMI 4 [HDMI 4]
 Subdevices: 1/1
 Subdevice #0: subdevice #0
card 1: ToneLabST [ToneLabST], device 0: USB Audio [USB Audio]
 Subdevices: 1/1
 Subdevice #0: subdevice #0


And here is pactl list cards:



Card #0
 Name: alsa_card.pci-0000_00_1f.3
 Driver: module-alsa-card.c
 Owner Module: 7
 Properties:
 alsa.card = "0"
 alsa.card_name = "HDA Intel PCH"
 alsa.long_card_name = "HDA Intel PCH at 0xec340000 irq 146"
 alsa.driver_name = "snd_hda_intel"
 device.bus_path = "pci-0000:00:1f.3"
 sysfs.path = "/devices/pci0000:00/0000:00:1f.3/sound/card0"
 device.bus = "pci"
 device.vendor.id = "8086"
 device.vendor.name = "Intel Corporation"
 device.product.id = "9d71"
 device.product.name = "Sunrise Point-LP HD Audio"
 device.form_factor = "internal"
 device.string = "0"
 device.description = "Built-in Audio"
 module-udev-detect.discovered = "1"
 device.icon_name = "audio-card-pci"
 Profiles:
 input:analog-stereo: Analog Stereo Input (sinks: 0, sources: 1, priority: 60, available: yes)
 output:analog-stereo: Analog Stereo Output (sinks: 1, sources: 0, priority: 6000, available: yes)
 output:analog-stereo+input:analog-stereo: Analog Stereo Duplex (sinks: 1, sources: 1, priority: 6060, available: yes)
 output:hdmi-stereo: Digital Stereo (HDMI) Output (sinks: 1, sources: 0, priority: 5400, available: no)
 output:hdmi-stereo+input:analog-stereo: Digital Stereo (HDMI) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 5460, available: yes)
 output:hdmi-surround: Digital Surround 5.1 (HDMI) Output (sinks: 1, sources: 0, priority: 300, available: no)
 output:hdmi-surround+input:analog-stereo: Digital Surround 5.1 (HDMI) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 360, available: yes)
 output:hdmi-surround71: Digital Surround 7.1 (HDMI) Output (sinks: 1, sources: 0, priority: 300, available: no)
 output:hdmi-surround71+input:analog-stereo: Digital Surround 7.1 (HDMI) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 360, available: yes)
 output:hdmi-stereo-extra1: Digital Stereo (HDMI 2) Output (sinks: 1, sources: 0, priority: 5200, available: no)
 output:hdmi-stereo-extra1+input:analog-stereo: Digital Stereo (HDMI 2) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 5260, available: yes)
 output:hdmi-surround-extra1: Digital Surround 5.1 (HDMI 2) Output (sinks: 1, sources: 0, priority: 100, available: no)
 output:hdmi-surround-extra1+input:analog-stereo: Digital Surround 5.1 (HDMI 2) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 160, available: yes)
 output:hdmi-surround71-extra1: Digital Surround 7.1 (HDMI 2) Output (sinks: 1, sources: 0, priority: 100, available: no)
 output:hdmi-surround71-extra1+input:analog-stereo: Digital Surround 7.1 (HDMI 2) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 160, available: yes)
 output:hdmi-stereo-extra2: Digital Stereo (HDMI 3) Output (sinks: 1, sources: 0, priority: 5200, available: no)
 output:hdmi-stereo-extra2+input:analog-stereo: Digital Stereo (HDMI 3) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 5260, available: yes)
 output:hdmi-surround-extra2: Digital Surround 5.1 (HDMI 3) Output (sinks: 1, sources: 0, priority: 100, available: no)
 output:hdmi-surround-extra2+input:analog-stereo: Digital Surround 5.1 (HDMI 3) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 160, available: yes)
 output:hdmi-surround71-extra2: Digital Surround 7.1 (HDMI 3) Output (sinks: 1, sources: 0, priority: 100, available: no)
 output:hdmi-surround71-extra2+input:analog-stereo: Digital Surround 7.1 (HDMI 3) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 160, available: yes)
 output:hdmi-stereo-extra3: Digital Stereo (HDMI 4) Output (sinks: 1, sources: 0, priority: 5200, available: no)
 output:hdmi-stereo-extra3+input:analog-stereo: Digital Stereo (HDMI 4) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 5260, available: yes)
 output:hdmi-surround-extra3: Digital Surround 5.1 (HDMI 4) Output (sinks: 1, sources: 0, priority: 100, available: no)
 output:hdmi-surround-extra3+input:analog-stereo: Digital Surround 5.1 (HDMI 4) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 160, available: yes)
 output:hdmi-surround71-extra3: Digital Surround 7.1 (HDMI 4) Output (sinks: 1, sources: 0, priority: 100, available: no)
 output:hdmi-surround71-extra3+input:analog-stereo: Digital Surround 7.1 (HDMI 4) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 160, available: yes)
 output:hdmi-stereo-extra4: Digital Stereo (HDMI 5) Output (sinks: 1, sources: 0, priority: 5200, available: no)
 output:hdmi-stereo-extra4+input:analog-stereo: Digital Stereo (HDMI 5) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 5260, available: yes)
 output:hdmi-surround-extra4: Digital Surround 5.1 (HDMI 5) Output (sinks: 1, sources: 0, priority: 100, available: no)
 output:hdmi-surround-extra4+input:analog-stereo: Digital Surround 5.1 (HDMI 5) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 160, available: yes)
 output:hdmi-surround71-extra4: Digital Surround 7.1 (HDMI 5) Output (sinks: 1, sources: 0, priority: 100, available: no)
 output:hdmi-surround71-extra4+input:analog-stereo: Digital Surround 7.1 (HDMI 5) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 160, available: yes)
 off: Off (sinks: 0, sources: 0, priority: 0, available: yes)
 Active Profile: output:analog-stereo+input:analog-stereo
 Ports:
 analog-input-internal-mic: Internal Microphone (priority: 8900, latency offset: 0 usec)
 Properties:
 device.icon_name = "audio-input-microphone"
 Part of profile(s): input:analog-stereo, output:analog-stereo+input:analog-stereo, output:hdmi-stereo+input:analog-stereo, output:hdmi-surround+input:analog-stereo, output:hdmi-surround71+input:analog-stereo, output:hdmi-stereo-extra1+input:analog-stereo, output:hdmi-surround-extra1+input:analog-stereo, output:hdmi-surround71-extra1+input:analog-stereo, output:hdmi-stereo-extra2+input:analog-stereo, output:hdmi-surround-extra2+input:analog-stereo, output:hdmi-surround71-extra2+input:analog-stereo, output:hdmi-stereo-extra3+input:analog-stereo, output:hdmi-surround-extra3+input:analog-stereo, output:hdmi-surround71-extra3+input:analog-stereo, output:hdmi-stereo-extra4+input:analog-stereo, output:hdmi-surround-extra4+input:analog-stereo, output:hdmi-surround71-extra4+input:analog-stereo
 analog-input-mic: Microphone (priority: 8700, latency offset: 0 usec, not available)
 Properties:
 device.icon_name = "audio-input-microphone"
 Part of profile(s): input:analog-stereo, output:analog-stereo+input:analog-stereo, output:hdmi-stereo+input:analog-stereo, output:hdmi-surround+input:analog-stereo, output:hdmi-surround71+input:analog-stereo, output:hdmi-stereo-extra1+input:analog-stereo, output:hdmi-surround-extra1+input:analog-stereo, output:hdmi-surround71-extra1+input:analog-stereo, output:hdmi-stereo-extra2+input:analog-stereo, output:hdmi-surround-extra2+input:analog-stereo, output:hdmi-surround71-extra2+input:analog-stereo, output:hdmi-stereo-extra3+input:analog-stereo, output:hdmi-surround-extra3+input:analog-stereo, output:hdmi-surround71-extra3+input:analog-stereo, output:hdmi-stereo-extra4+input:analog-stereo, output:hdmi-surround-extra4+input:analog-stereo, output:hdmi-surround71-extra4+input:analog-stereo
 analog-output-speaker: Speakers (priority: 10000, latency offset: 0 usec)
 Properties:
 device.icon_name = "audio-speakers"
 Part of profile(s): output:analog-stereo, output:analog-stereo+input:analog-stereo
 analog-output-headphones: Headphones (priority: 9000, latency offset: 0 usec, not available)
 Properties:
 device.icon_name = "audio-headphones"
 Part of profile(s): output:analog-stereo, output:analog-stereo+input:analog-stereo
 hdmi-output-0: HDMI / DisplayPort (priority: 5900, latency offset: 0 usec, not available)
 Properties:
 device.icon_name = "video-display"
 Part of profile(s): output:hdmi-stereo, output:hdmi-stereo+input:analog-stereo, output:hdmi-surround, output:hdmi-surround+input:analog-stereo, output:hdmi-surround71, output:hdmi-surround71+input:analog-stereo
 hdmi-output-1: HDMI / DisplayPort 2 (priority: 5800, latency offset: 0 usec, not available)
 Properties:
 device.icon_name = "video-display"
 Part of profile(s): output:hdmi-stereo-extra1, output:hdmi-stereo-extra1+input:analog-stereo, output:hdmi-surround-extra1, output:hdmi-surround-extra1+input:analog-stereo, output:hdmi-surround71-extra1, output:hdmi-surround71-extra1+input:analog-stereo
 hdmi-output-2: HDMI / DisplayPort 3 (priority: 5700, latency offset: 0 usec, not available)
 Properties:
 device.icon_name = "video-display"
 Part of profile(s): output:hdmi-stereo-extra2, output:hdmi-stereo-extra2+input:analog-stereo, output:hdmi-surround-extra2, output:hdmi-surround-extra2+input:analog-stereo, output:hdmi-surround71-extra2, output:hdmi-surround71-extra2+input:analog-stereo
 hdmi-output-3: HDMI / DisplayPort 4 (priority: 5600, latency offset: 0 usec, not available)
 Properties:
 device.icon_name = "video-display"
 Part of profile(s): output:hdmi-stereo-extra3, output:hdmi-stereo-extra3+input:analog-stereo, output:hdmi-surround-extra3, output:hdmi-surround-extra3+input:analog-stereo, output:hdmi-surround71-extra3, output:hdmi-surround71-extra3+input:analog-stereo
 hdmi-output-4: HDMI / DisplayPort 5 (priority: 5500, latency offset: 0 usec, not available)
 Properties:
 device.icon_name = "video-display"
 Part of profile(s): output:hdmi-stereo-extra4, output:hdmi-stereo-extra4+input:analog-stereo, output:hdmi-surround-extra4, output:hdmi-surround-extra4+input:analog-stereo, output:hdmi-surround71-extra4, output:hdmi-surround71-extra4+input:analog-stereo

Card #1
 Name: alsa_card.usb-KORG_INC._ToneLabST-00
 Driver: module-alsa-card.c
 Owner Module: 26
 Properties:
 alsa.card = "1"
 alsa.card_name = "ToneLabST"
 alsa.long_card_name = "KORG INC. ToneLabST at usb-0000:00:14.0-3, full speed"
 alsa.driver_name = "snd_usb_audio"
 device.bus_path = "pci-0000:00:14.0-usb-0:3:1.0"
 sysfs.path = "/devices/pci0000:00/0000:00:14.0/usb1/1-3/1-3:1.0/sound/card1"
 udev.id = "usb-KORG_INC._ToneLabST-00"
 device.bus = "usb"
 device.vendor.id = "0944"
 device.vendor.name = "KORG, Inc."
 device.product.id = "0201"
 device.product.name = "ToneLabST"
 device.serial = "KORG_INC._ToneLabST"
 device.string = "1"
 device.description = "ToneLabST"
 module-udev-detect.discovered = "1"
 device.icon_name = "audio-card-usb"
 Profiles:
 input:analog-stereo: Analog Stereo Input (sinks: 0, sources: 1, priority: 60, available: yes)
 input:iec958-stereo: Digital Stereo (IEC958) Input (sinks: 0, sources: 1, priority: 55, available: yes)
 output:analog-stereo: Analog Stereo Output (sinks: 1, sources: 0, priority: 6000, available: yes)
 output:analog-stereo+input:analog-stereo: Analog Stereo Duplex (sinks: 1, sources: 1, priority: 6060, available: yes)
 output:analog-stereo+input:iec958-stereo: Analog Stereo Output + Digital Stereo (IEC958) Input (sinks: 1, sources: 1, priority: 6055, available: yes)
 output:iec958-stereo: Digital Stereo (IEC958) Output (sinks: 1, sources: 0, priority: 5500, available: yes)
 output:iec958-stereo+input:analog-stereo: Digital Stereo (IEC958) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 5560, available: yes)
 output:iec958-stereo+input:iec958-stereo: Digital Stereo Duplex (IEC958) (sinks: 1, sources: 1, priority: 5555, available: yes)
 off: Off (sinks: 0, sources: 0, priority: 0, available: yes)
 Active Profile: output:analog-stereo+input:analog-stereo
 Ports:
 analog-input: Analog Input (priority: 10000, latency offset: 0 usec)
 Part of profile(s): input:analog-stereo, output:analog-stereo+input:analog-stereo, output:iec958-stereo+input:analog-stereo
 iec958-stereo-input: Digital Input (S/PDIF) (priority: 0, latency offset: 0 usec)
 Part of profile(s): input:iec958-stereo, output:analog-stereo+input:iec958-stereo, output:iec958-stereo+input:iec958-stereo
 analog-output: Analog Output (priority: 9900, latency offset: 0 usec)
 Part of profile(s): output:analog-stereo, output:analog-stereo+input:analog-stereo, output:analog-stereo+input:iec958-stereo
 iec958-stereo-output: Digital Output (S/PDIF) (priority: 0, latency offset: 0 usec)
 Part of profile(s): output:iec958-stereo, output:iec958-stereo+input:analog-stereo, output:iec958-stereo+input:iec958-stereo





sound pulseaudio alsa jack







share|improve this question























  • Please show the contents of /proc/asound/cardX/stream0 of the USB device.
    – CL.
    Mar 20 at 17:53










  • @CL. - I've updated the description with the output of stream0.
    – Redsandro
    Mar 20 at 23:19










  • How exactly are you running Jack? Where did you configure the 44.1 kHz?
    – CL.
    Mar 21 at 7:53










  • @CL. Running and configuring through qjackctl.
    – Redsandro
    Mar 21 at 10:35










  • please add audio device information.aplay -l and pactl list cards. Possible that Korg USB device may require 48kHz. JACK will sometimes run better set to 48kHz than 44.1kHz with audio interfaces. Pulseaudio can usually cope with samplerate change no problem, but settings can be adjusted easily to use 48kHz samplerate if needed
    – nik gnomic
    Aug 13 at 15:25














up vote
0
down vote

favorite












I'm using jack2 on Ubuntu 16.04 LTS by installing jack, jack-tools and qjackctl from the official repositories.



My USB sound connection feeds 44100 Hz into jack. Jack is configured (through qjackctl) to run at 44100 Hz. However, it automatically changes to 48000 Hz on run, causing the pitch from the speakers to be about 2 notes higher and the following message to show:



ERROR: playback and capture sample rates do not match (48000 vs. 44100)


I've read through tons of (very old) discussion about sampling rates having to do with jack, alsa, or pulse audio, and adding a file called .asoundrc which doesn't seem to do anything anymore. But either way, this is all out of my league. I just want to change the "playback sample rate" to 44100 Hz. Can someone explain what steps I should take in 2018 (or 2016 - Ubuntu 16.04) just so jack won't play back my 44100 Hz input as 48000 Hz?



USB device:



$ cat /proc/asound/card1/stream0 
KORG INC. ToneLabST at usb-0000:00:14.0-1, full speed : USB Audio

Playback:
 Status: Stop
 Interface 1
 Altset 1
 Format: S16_LE
 Channels: 2
 Endpoint: 1 OUT (ADAPTIVE)
 Rates: 44100

Capture:
 Status: Stop
 Interface 2
 Altset 1
 Format: S16_LE
 Channels: 2
 Endpoint: 2 IN (ASYNC)
 Rates: 44100


Possibly related reports:



  • github.com/rncbc/qjackctl - Would displaying both sampling rates avoid confusion?

  • github.com/jackaudio/jack2 - Jack won't change sample rate

Update August 2018



I did a fresh installation of Ubuntu 18.04 LTS and tried this again.



sudo apt update
sudo apt install jack jack-tools qjackctl 
env QT_SCALE_FACTOR=1.5 qjackctl


At this time I'm plugging in the ToneLab ST USB cable. I'm experiencing the same problem. Notice how the frequencies mismatch.



Starting jack server...
JACK server starting in realtime mode with priority 10
self-connect-mode is "Don't restrict self connect requests"
Acquired audio card Audio1
Acquired audio card Audio0
creating alsa driver ... hw:PCH|hw:ToneLabST,0|128|3|44100|0|0|nomon|swmeter|-|16bit
configuring for 44100Hz, period = 128 frames (2.9 ms), buffer = 3 periods
ALSA: final selected sample format for capture: 16bit little-endian
ALSA: use 3 periods for capture
ALSA: final selected sample format for playback: 16bit little-endian
ALSA: use 3 periods for playback
ERROR: playback and capture sample rates do not match (48000 vs. 44100)


By request, here's aplay -l:



**** List of PLAYBACK Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: CX8200 Analog [CX8200 Analog]
 Subdevices: 0/1
 Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0]
 Subdevices: 1/1
 Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 7: HDMI 1 [HDMI 1]
 Subdevices: 1/1
 Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 8: HDMI 2 [HDMI 2]
 Subdevices: 1/1
 Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 9: HDMI 3 [HDMI 3]
 Subdevices: 1/1
 Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 10: HDMI 4 [HDMI 4]
 Subdevices: 1/1
 Subdevice #0: subdevice #0
card 1: ToneLabST [ToneLabST], device 0: USB Audio [USB Audio]
 Subdevices: 1/1
 Subdevice #0: subdevice #0


And here is pactl list cards:



Card #0
 Name: alsa_card.pci-0000_00_1f.3
 Driver: module-alsa-card.c
 Owner Module: 7
 Properties:
 alsa.card = "0"
 alsa.card_name = "HDA Intel PCH"
 alsa.long_card_name = "HDA Intel PCH at 0xec340000 irq 146"
 alsa.driver_name = "snd_hda_intel"
 device.bus_path = "pci-0000:00:1f.3"
 sysfs.path = "/devices/pci0000:00/0000:00:1f.3/sound/card0"
 device.bus = "pci"
 device.vendor.id = "8086"
 device.vendor.name = "Intel Corporation"
 device.product.id = "9d71"
 device.product.name = "Sunrise Point-LP HD Audio"
 device.form_factor = "internal"
 device.string = "0"
 device.description = "Built-in Audio"
 module-udev-detect.discovered = "1"
 device.icon_name = "audio-card-pci"
 Profiles:
 input:analog-stereo: Analog Stereo Input (sinks: 0, sources: 1, priority: 60, available: yes)
 output:analog-stereo: Analog Stereo Output (sinks: 1, sources: 0, priority: 6000, available: yes)
 output:analog-stereo+input:analog-stereo: Analog Stereo Duplex (sinks: 1, sources: 1, priority: 6060, available: yes)
 output:hdmi-stereo: Digital Stereo (HDMI) Output (sinks: 1, sources: 0, priority: 5400, available: no)
 output:hdmi-stereo+input:analog-stereo: Digital Stereo (HDMI) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 5460, available: yes)
 output:hdmi-surround: Digital Surround 5.1 (HDMI) Output (sinks: 1, sources: 0, priority: 300, available: no)
 output:hdmi-surround+input:analog-stereo: Digital Surround 5.1 (HDMI) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 360, available: yes)
 output:hdmi-surround71: Digital Surround 7.1 (HDMI) Output (sinks: 1, sources: 0, priority: 300, available: no)
 output:hdmi-surround71+input:analog-stereo: Digital Surround 7.1 (HDMI) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 360, available: yes)
 output:hdmi-stereo-extra1: Digital Stereo (HDMI 2) Output (sinks: 1, sources: 0, priority: 5200, available: no)
 output:hdmi-stereo-extra1+input:analog-stereo: Digital Stereo (HDMI 2) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 5260, available: yes)
 output:hdmi-surround-extra1: Digital Surround 5.1 (HDMI 2) Output (sinks: 1, sources: 0, priority: 100, available: no)
 output:hdmi-surround-extra1+input:analog-stereo: Digital Surround 5.1 (HDMI 2) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 160, available: yes)
 output:hdmi-surround71-extra1: Digital Surround 7.1 (HDMI 2) Output (sinks: 1, sources: 0, priority: 100, available: no)
 output:hdmi-surround71-extra1+input:analog-stereo: Digital Surround 7.1 (HDMI 2) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 160, available: yes)
 output:hdmi-stereo-extra2: Digital Stereo (HDMI 3) Output (sinks: 1, sources: 0, priority: 5200, available: no)
 output:hdmi-stereo-extra2+input:analog-stereo: Digital Stereo (HDMI 3) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 5260, available: yes)
 output:hdmi-surround-extra2: Digital Surround 5.1 (HDMI 3) Output (sinks: 1, sources: 0, priority: 100, available: no)
 output:hdmi-surround-extra2+input:analog-stereo: Digital Surround 5.1 (HDMI 3) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 160, available: yes)
 output:hdmi-surround71-extra2: Digital Surround 7.1 (HDMI 3) Output (sinks: 1, sources: 0, priority: 100, available: no)
 output:hdmi-surround71-extra2+input:analog-stereo: Digital Surround 7.1 (HDMI 3) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 160, available: yes)
 output:hdmi-stereo-extra3: Digital Stereo (HDMI 4) Output (sinks: 1, sources: 0, priority: 5200, available: no)
 output:hdmi-stereo-extra3+input:analog-stereo: Digital Stereo (HDMI 4) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 5260, available: yes)
 output:hdmi-surround-extra3: Digital Surround 5.1 (HDMI 4) Output (sinks: 1, sources: 0, priority: 100, available: no)
 output:hdmi-surround-extra3+input:analog-stereo: Digital Surround 5.1 (HDMI 4) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 160, available: yes)
 output:hdmi-surround71-extra3: Digital Surround 7.1 (HDMI 4) Output (sinks: 1, sources: 0, priority: 100, available: no)
 output:hdmi-surround71-extra3+input:analog-stereo: Digital Surround 7.1 (HDMI 4) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 160, available: yes)
 output:hdmi-stereo-extra4: Digital Stereo (HDMI 5) Output (sinks: 1, sources: 0, priority: 5200, available: no)
 output:hdmi-stereo-extra4+input:analog-stereo: Digital Stereo (HDMI 5) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 5260, available: yes)
 output:hdmi-surround-extra4: Digital Surround 5.1 (HDMI 5) Output (sinks: 1, sources: 0, priority: 100, available: no)
 output:hdmi-surround-extra4+input:analog-stereo: Digital Surround 5.1 (HDMI 5) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 160, available: yes)
 output:hdmi-surround71-extra4: Digital Surround 7.1 (HDMI 5) Output (sinks: 1, sources: 0, priority: 100, available: no)
 output:hdmi-surround71-extra4+input:analog-stereo: Digital Surround 7.1 (HDMI 5) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 160, available: yes)
 off: Off (sinks: 0, sources: 0, priority: 0, available: yes)
 Active Profile: output:analog-stereo+input:analog-stereo
 Ports:
 analog-input-internal-mic: Internal Microphone (priority: 8900, latency offset: 0 usec)
 Properties:
 device.icon_name = "audio-input-microphone"
 Part of profile(s): input:analog-stereo, output:analog-stereo+input:analog-stereo, output:hdmi-stereo+input:analog-stereo, output:hdmi-surround+input:analog-stereo, output:hdmi-surround71+input:analog-stereo, output:hdmi-stereo-extra1+input:analog-stereo, output:hdmi-surround-extra1+input:analog-stereo, output:hdmi-surround71-extra1+input:analog-stereo, output:hdmi-stereo-extra2+input:analog-stereo, output:hdmi-surround-extra2+input:analog-stereo, output:hdmi-surround71-extra2+input:analog-stereo, output:hdmi-stereo-extra3+input:analog-stereo, output:hdmi-surround-extra3+input:analog-stereo, output:hdmi-surround71-extra3+input:analog-stereo, output:hdmi-stereo-extra4+input:analog-stereo, output:hdmi-surround-extra4+input:analog-stereo, output:hdmi-surround71-extra4+input:analog-stereo
 analog-input-mic: Microphone (priority: 8700, latency offset: 0 usec, not available)
 Properties:
 device.icon_name = "audio-input-microphone"
 Part of profile(s): input:analog-stereo, output:analog-stereo+input:analog-stereo, output:hdmi-stereo+input:analog-stereo, output:hdmi-surround+input:analog-stereo, output:hdmi-surround71+input:analog-stereo, output:hdmi-stereo-extra1+input:analog-stereo, output:hdmi-surround-extra1+input:analog-stereo, output:hdmi-surround71-extra1+input:analog-stereo, output:hdmi-stereo-extra2+input:analog-stereo, output:hdmi-surround-extra2+input:analog-stereo, output:hdmi-surround71-extra2+input:analog-stereo, output:hdmi-stereo-extra3+input:analog-stereo, output:hdmi-surround-extra3+input:analog-stereo, output:hdmi-surround71-extra3+input:analog-stereo, output:hdmi-stereo-extra4+input:analog-stereo, output:hdmi-surround-extra4+input:analog-stereo, output:hdmi-surround71-extra4+input:analog-stereo
 analog-output-speaker: Speakers (priority: 10000, latency offset: 0 usec)
 Properties:
 device.icon_name = "audio-speakers"
 Part of profile(s): output:analog-stereo, output:analog-stereo+input:analog-stereo
 analog-output-headphones: Headphones (priority: 9000, latency offset: 0 usec, not available)
 Properties:
 device.icon_name = "audio-headphones"
 Part of profile(s): output:analog-stereo, output:analog-stereo+input:analog-stereo
 hdmi-output-0: HDMI / DisplayPort (priority: 5900, latency offset: 0 usec, not available)
 Properties:
 device.icon_name = "video-display"
 Part of profile(s): output:hdmi-stereo, output:hdmi-stereo+input:analog-stereo, output:hdmi-surround, output:hdmi-surround+input:analog-stereo, output:hdmi-surround71, output:hdmi-surround71+input:analog-stereo
 hdmi-output-1: HDMI / DisplayPort 2 (priority: 5800, latency offset: 0 usec, not available)
 Properties:
 device.icon_name = "video-display"
 Part of profile(s): output:hdmi-stereo-extra1, output:hdmi-stereo-extra1+input:analog-stereo, output:hdmi-surround-extra1, output:hdmi-surround-extra1+input:analog-stereo, output:hdmi-surround71-extra1, output:hdmi-surround71-extra1+input:analog-stereo
 hdmi-output-2: HDMI / DisplayPort 3 (priority: 5700, latency offset: 0 usec, not available)
 Properties:
 device.icon_name = "video-display"
 Part of profile(s): output:hdmi-stereo-extra2, output:hdmi-stereo-extra2+input:analog-stereo, output:hdmi-surround-extra2, output:hdmi-surround-extra2+input:analog-stereo, output:hdmi-surround71-extra2, output:hdmi-surround71-extra2+input:analog-stereo
 hdmi-output-3: HDMI / DisplayPort 4 (priority: 5600, latency offset: 0 usec, not available)
 Properties:
 device.icon_name = "video-display"
 Part of profile(s): output:hdmi-stereo-extra3, output:hdmi-stereo-extra3+input:analog-stereo, output:hdmi-surround-extra3, output:hdmi-surround-extra3+input:analog-stereo, output:hdmi-surround71-extra3, output:hdmi-surround71-extra3+input:analog-stereo
 hdmi-output-4: HDMI / DisplayPort 5 (priority: 5500, latency offset: 0 usec, not available)
 Properties:
 device.icon_name = "video-display"
 Part of profile(s): output:hdmi-stereo-extra4, output:hdmi-stereo-extra4+input:analog-stereo, output:hdmi-surround-extra4, output:hdmi-surround-extra4+input:analog-stereo, output:hdmi-surround71-extra4, output:hdmi-surround71-extra4+input:analog-stereo

Card #1
 Name: alsa_card.usb-KORG_INC._ToneLabST-00
 Driver: module-alsa-card.c
 Owner Module: 26
 Properties:
 alsa.card = "1"
 alsa.card_name = "ToneLabST"
 alsa.long_card_name = "KORG INC. ToneLabST at usb-0000:00:14.0-3, full speed"
 alsa.driver_name = "snd_usb_audio"
 device.bus_path = "pci-0000:00:14.0-usb-0:3:1.0"
 sysfs.path = "/devices/pci0000:00/0000:00:14.0/usb1/1-3/1-3:1.0/sound/card1"
 udev.id = "usb-KORG_INC._ToneLabST-00"
 device.bus = "usb"
 device.vendor.id = "0944"
 device.vendor.name = "KORG, Inc."
 device.product.id = "0201"
 device.product.name = "ToneLabST"
 device.serial = "KORG_INC._ToneLabST"
 device.string = "1"
 device.description = "ToneLabST"
 module-udev-detect.discovered = "1"
 device.icon_name = "audio-card-usb"
 Profiles:
 input:analog-stereo: Analog Stereo Input (sinks: 0, sources: 1, priority: 60, available: yes)
 input:iec958-stereo: Digital Stereo (IEC958) Input (sinks: 0, sources: 1, priority: 55, available: yes)
 output:analog-stereo: Analog Stereo Output (sinks: 1, sources: 0, priority: 6000, available: yes)
 output:analog-stereo+input:analog-stereo: Analog Stereo Duplex (sinks: 1, sources: 1, priority: 6060, available: yes)
 output:analog-stereo+input:iec958-stereo: Analog Stereo Output + Digital Stereo (IEC958) Input (sinks: 1, sources: 1, priority: 6055, available: yes)
 output:iec958-stereo: Digital Stereo (IEC958) Output (sinks: 1, sources: 0, priority: 5500, available: yes)
 output:iec958-stereo+input:analog-stereo: Digital Stereo (IEC958) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 5560, available: yes)
 output:iec958-stereo+input:iec958-stereo: Digital Stereo Duplex (IEC958) (sinks: 1, sources: 1, priority: 5555, available: yes)
 off: Off (sinks: 0, sources: 0, priority: 0, available: yes)
 Active Profile: output:analog-stereo+input:analog-stereo
 Ports:
 analog-input: Analog Input (priority: 10000, latency offset: 0 usec)
 Part of profile(s): input:analog-stereo, output:analog-stereo+input:analog-stereo, output:iec958-stereo+input:analog-stereo
 iec958-stereo-input: Digital Input (S/PDIF) (priority: 0, latency offset: 0 usec)
 Part of profile(s): input:iec958-stereo, output:analog-stereo+input:iec958-stereo, output:iec958-stereo+input:iec958-stereo
 analog-output: Analog Output (priority: 9900, latency offset: 0 usec)
 Part of profile(s): output:analog-stereo, output:analog-stereo+input:analog-stereo, output:analog-stereo+input:iec958-stereo
 iec958-stereo-output: Digital Output (S/PDIF) (priority: 0, latency offset: 0 usec)
 Part of profile(s): output:iec958-stereo, output:iec958-stereo+input:analog-stereo, output:iec958-stereo+input:iec958-stereo





sound pulseaudio alsa jack







share|improve this question























  • Please show the contents of /proc/asound/cardX/stream0 of the USB device.
    – CL.
    Mar 20 at 17:53










  • @CL. - I've updated the description with the output of stream0.
    – Redsandro
    Mar 20 at 23:19










  • How exactly are you running Jack? Where did you configure the 44.1 kHz?
    – CL.
    Mar 21 at 7:53










  • @CL. Running and configuring through qjackctl.
    – Redsandro
    Mar 21 at 10:35










  • please add audio device information.aplay -l and pactl list cards. Possible that Korg USB device may require 48kHz. JACK will sometimes run better set to 48kHz than 44.1kHz with audio interfaces. Pulseaudio can usually cope with samplerate change no problem, but settings can be adjusted easily to use 48kHz samplerate if needed
    – nik gnomic
    Aug 13 at 15:25












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I'm using jack2 on Ubuntu 16.04 LTS by installing jack, jack-tools and qjackctl from the official repositories.



My USB sound connection feeds 44100 Hz into jack. Jack is configured (through qjackctl) to run at 44100 Hz. However, it automatically changes to 48000 Hz on run, causing the pitch from the speakers to be about 2 notes higher and the following message to show:



ERROR: playback and capture sample rates do not match (48000 vs. 44100)


I've read through tons of (very old) discussion about sampling rates having to do with jack, alsa, or pulse audio, and adding a file called .asoundrc which doesn't seem to do anything anymore. But either way, this is all out of my league. I just want to change the "playback sample rate" to 44100 Hz. Can someone explain what steps I should take in 2018 (or 2016 - Ubuntu 16.04) just so jack won't play back my 44100 Hz input as 48000 Hz?



USB device:



$ cat /proc/asound/card1/stream0 
KORG INC. ToneLabST at usb-0000:00:14.0-1, full speed : USB Audio

Playback:
 Status: Stop
 Interface 1
 Altset 1
 Format: S16_LE
 Channels: 2
 Endpoint: 1 OUT (ADAPTIVE)
 Rates: 44100

Capture:
 Status: Stop
 Interface 2
 Altset 1
 Format: S16_LE
 Channels: 2
 Endpoint: 2 IN (ASYNC)
 Rates: 44100


Possibly related reports:



  • github.com/rncbc/qjackctl - Would displaying both sampling rates avoid confusion?

  • github.com/jackaudio/jack2 - Jack won't change sample rate

Update August 2018



I did a fresh installation of Ubuntu 18.04 LTS and tried this again.



sudo apt update
sudo apt install jack jack-tools qjackctl 
env QT_SCALE_FACTOR=1.5 qjackctl


At this time I'm plugging in the ToneLab ST USB cable. I'm experiencing the same problem. Notice how the frequencies mismatch.



Starting jack server...
JACK server starting in realtime mode with priority 10
self-connect-mode is "Don't restrict self connect requests"
Acquired audio card Audio1
Acquired audio card Audio0
creating alsa driver ... hw:PCH|hw:ToneLabST,0|128|3|44100|0|0|nomon|swmeter|-|16bit
configuring for 44100Hz, period = 128 frames (2.9 ms), buffer = 3 periods
ALSA: final selected sample format for capture: 16bit little-endian
ALSA: use 3 periods for capture
ALSA: final selected sample format for playback: 16bit little-endian
ALSA: use 3 periods for playback
ERROR: playback and capture sample rates do not match (48000 vs. 44100)


By request, here's aplay -l:



**** List of PLAYBACK Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: CX8200 Analog [CX8200 Analog]
 Subdevices: 0/1
 Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0]
 Subdevices: 1/1
 Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 7: HDMI 1 [HDMI 1]
 Subdevices: 1/1
 Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 8: HDMI 2 [HDMI 2]
 Subdevices: 1/1
 Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 9: HDMI 3 [HDMI 3]
 Subdevices: 1/1
 Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 10: HDMI 4 [HDMI 4]
 Subdevices: 1/1
 Subdevice #0: subdevice #0
card 1: ToneLabST [ToneLabST], device 0: USB Audio [USB Audio]
 Subdevices: 1/1
 Subdevice #0: subdevice #0


And here is pactl list cards:



Card #0
 Name: alsa_card.pci-0000_00_1f.3
 Driver: module-alsa-card.c
 Owner Module: 7
 Properties:
 alsa.card = "0"
 alsa.card_name = "HDA Intel PCH"
 alsa.long_card_name = "HDA Intel PCH at 0xec340000 irq 146"
 alsa.driver_name = "snd_hda_intel"
 device.bus_path = "pci-0000:00:1f.3"
 sysfs.path = "/devices/pci0000:00/0000:00:1f.3/sound/card0"
 device.bus = "pci"
 device.vendor.id = "8086"
 device.vendor.name = "Intel Corporation"
 device.product.id = "9d71"
 device.product.name = "Sunrise Point-LP HD Audio"
 device.form_factor = "internal"
 device.string = "0"
 device.description = "Built-in Audio"
 module-udev-detect.discovered = "1"
 device.icon_name = "audio-card-pci"
 Profiles:
 input:analog-stereo: Analog Stereo Input (sinks: 0, sources: 1, priority: 60, available: yes)
 output:analog-stereo: Analog Stereo Output (sinks: 1, sources: 0, priority: 6000, available: yes)
 output:analog-stereo+input:analog-stereo: Analog Stereo Duplex (sinks: 1, sources: 1, priority: 6060, available: yes)
 output:hdmi-stereo: Digital Stereo (HDMI) Output (sinks: 1, sources: 0, priority: 5400, available: no)
 output:hdmi-stereo+input:analog-stereo: Digital Stereo (HDMI) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 5460, available: yes)
 output:hdmi-surround: Digital Surround 5.1 (HDMI) Output (sinks: 1, sources: 0, priority: 300, available: no)
 output:hdmi-surround+input:analog-stereo: Digital Surround 5.1 (HDMI) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 360, available: yes)
 output:hdmi-surround71: Digital Surround 7.1 (HDMI) Output (sinks: 1, sources: 0, priority: 300, available: no)
 output:hdmi-surround71+input:analog-stereo: Digital Surround 7.1 (HDMI) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 360, available: yes)
 output:hdmi-stereo-extra1: Digital Stereo (HDMI 2) Output (sinks: 1, sources: 0, priority: 5200, available: no)
 output:hdmi-stereo-extra1+input:analog-stereo: Digital Stereo (HDMI 2) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 5260, available: yes)
 output:hdmi-surround-extra1: Digital Surround 5.1 (HDMI 2) Output (sinks: 1, sources: 0, priority: 100, available: no)
 output:hdmi-surround-extra1+input:analog-stereo: Digital Surround 5.1 (HDMI 2) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 160, available: yes)
 output:hdmi-surround71-extra1: Digital Surround 7.1 (HDMI 2) Output (sinks: 1, sources: 0, priority: 100, available: no)
 output:hdmi-surround71-extra1+input:analog-stereo: Digital Surround 7.1 (HDMI 2) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 160, available: yes)
 output:hdmi-stereo-extra2: Digital Stereo (HDMI 3) Output (sinks: 1, sources: 0, priority: 5200, available: no)
 output:hdmi-stereo-extra2+input:analog-stereo: Digital Stereo (HDMI 3) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 5260, available: yes)
 output:hdmi-surround-extra2: Digital Surround 5.1 (HDMI 3) Output (sinks: 1, sources: 0, priority: 100, available: no)
 output:hdmi-surround-extra2+input:analog-stereo: Digital Surround 5.1 (HDMI 3) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 160, available: yes)
 output:hdmi-surround71-extra2: Digital Surround 7.1 (HDMI 3) Output (sinks: 1, sources: 0, priority: 100, available: no)
 output:hdmi-surround71-extra2+input:analog-stereo: Digital Surround 7.1 (HDMI 3) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 160, available: yes)
 output:hdmi-stereo-extra3: Digital Stereo (HDMI 4) Output (sinks: 1, sources: 0, priority: 5200, available: no)
 output:hdmi-stereo-extra3+input:analog-stereo: Digital Stereo (HDMI 4) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 5260, available: yes)
 output:hdmi-surround-extra3: Digital Surround 5.1 (HDMI 4) Output (sinks: 1, sources: 0, priority: 100, available: no)
 output:hdmi-surround-extra3+input:analog-stereo: Digital Surround 5.1 (HDMI 4) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 160, available: yes)
 output:hdmi-surround71-extra3: Digital Surround 7.1 (HDMI 4) Output (sinks: 1, sources: 0, priority: 100, available: no)
 output:hdmi-surround71-extra3+input:analog-stereo: Digital Surround 7.1 (HDMI 4) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 160, available: yes)
 output:hdmi-stereo-extra4: Digital Stereo (HDMI 5) Output (sinks: 1, sources: 0, priority: 5200, available: no)
 output:hdmi-stereo-extra4+input:analog-stereo: Digital Stereo (HDMI 5) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 5260, available: yes)
 output:hdmi-surround-extra4: Digital Surround 5.1 (HDMI 5) Output (sinks: 1, sources: 0, priority: 100, available: no)
 output:hdmi-surround-extra4+input:analog-stereo: Digital Surround 5.1 (HDMI 5) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 160, available: yes)
 output:hdmi-surround71-extra4: Digital Surround 7.1 (HDMI 5) Output (sinks: 1, sources: 0, priority: 100, available: no)
 output:hdmi-surround71-extra4+input:analog-stereo: Digital Surround 7.1 (HDMI 5) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 160, available: yes)
 off: Off (sinks: 0, sources: 0, priority: 0, available: yes)
 Active Profile: output:analog-stereo+input:analog-stereo
 Ports:
 analog-input-internal-mic: Internal Microphone (priority: 8900, latency offset: 0 usec)
 Properties:
 device.icon_name = "audio-input-microphone"
 Part of profile(s): input:analog-stereo, output:analog-stereo+input:analog-stereo, output:hdmi-stereo+input:analog-stereo, output:hdmi-surround+input:analog-stereo, output:hdmi-surround71+input:analog-stereo, output:hdmi-stereo-extra1+input:analog-stereo, output:hdmi-surround-extra1+input:analog-stereo, output:hdmi-surround71-extra1+input:analog-stereo, output:hdmi-stereo-extra2+input:analog-stereo, output:hdmi-surround-extra2+input:analog-stereo, output:hdmi-surround71-extra2+input:analog-stereo, output:hdmi-stereo-extra3+input:analog-stereo, output:hdmi-surround-extra3+input:analog-stereo, output:hdmi-surround71-extra3+input:analog-stereo, output:hdmi-stereo-extra4+input:analog-stereo, output:hdmi-surround-extra4+input:analog-stereo, output:hdmi-surround71-extra4+input:analog-stereo
 analog-input-mic: Microphone (priority: 8700, latency offset: 0 usec, not available)
 Properties:
 device.icon_name = "audio-input-microphone"
 Part of profile(s): input:analog-stereo, output:analog-stereo+input:analog-stereo, output:hdmi-stereo+input:analog-stereo, output:hdmi-surround+input:analog-stereo, output:hdmi-surround71+input:analog-stereo, output:hdmi-stereo-extra1+input:analog-stereo, output:hdmi-surround-extra1+input:analog-stereo, output:hdmi-surround71-extra1+input:analog-stereo, output:hdmi-stereo-extra2+input:analog-stereo, output:hdmi-surround-extra2+input:analog-stereo, output:hdmi-surround71-extra2+input:analog-stereo, output:hdmi-stereo-extra3+input:analog-stereo, output:hdmi-surround-extra3+input:analog-stereo, output:hdmi-surround71-extra3+input:analog-stereo, output:hdmi-stereo-extra4+input:analog-stereo, output:hdmi-surround-extra4+input:analog-stereo, output:hdmi-surround71-extra4+input:analog-stereo
 analog-output-speaker: Speakers (priority: 10000, latency offset: 0 usec)
 Properties:
 device.icon_name = "audio-speakers"
 Part of profile(s): output:analog-stereo, output:analog-stereo+input:analog-stereo
 analog-output-headphones: Headphones (priority: 9000, latency offset: 0 usec, not available)
 Properties:
 device.icon_name = "audio-headphones"
 Part of profile(s): output:analog-stereo, output:analog-stereo+input:analog-stereo
 hdmi-output-0: HDMI / DisplayPort (priority: 5900, latency offset: 0 usec, not available)
 Properties:
 device.icon_name = "video-display"
 Part of profile(s): output:hdmi-stereo, output:hdmi-stereo+input:analog-stereo, output:hdmi-surround, output:hdmi-surround+input:analog-stereo, output:hdmi-surround71, output:hdmi-surround71+input:analog-stereo
 hdmi-output-1: HDMI / DisplayPort 2 (priority: 5800, latency offset: 0 usec, not available)
 Properties:
 device.icon_name = "video-display"
 Part of profile(s): output:hdmi-stereo-extra1, output:hdmi-stereo-extra1+input:analog-stereo, output:hdmi-surround-extra1, output:hdmi-surround-extra1+input:analog-stereo, output:hdmi-surround71-extra1, output:hdmi-surround71-extra1+input:analog-stereo
 hdmi-output-2: HDMI / DisplayPort 3 (priority: 5700, latency offset: 0 usec, not available)
 Properties:
 device.icon_name = "video-display"
 Part of profile(s): output:hdmi-stereo-extra2, output:hdmi-stereo-extra2+input:analog-stereo, output:hdmi-surround-extra2, output:hdmi-surround-extra2+input:analog-stereo, output:hdmi-surround71-extra2, output:hdmi-surround71-extra2+input:analog-stereo
 hdmi-output-3: HDMI / DisplayPort 4 (priority: 5600, latency offset: 0 usec, not available)
 Properties:
 device.icon_name = "video-display"
 Part of profile(s): output:hdmi-stereo-extra3, output:hdmi-stereo-extra3+input:analog-stereo, output:hdmi-surround-extra3, output:hdmi-surround-extra3+input:analog-stereo, output:hdmi-surround71-extra3, output:hdmi-surround71-extra3+input:analog-stereo
 hdmi-output-4: HDMI / DisplayPort 5 (priority: 5500, latency offset: 0 usec, not available)
 Properties:
 device.icon_name = "video-display"
 Part of profile(s): output:hdmi-stereo-extra4, output:hdmi-stereo-extra4+input:analog-stereo, output:hdmi-surround-extra4, output:hdmi-surround-extra4+input:analog-stereo, output:hdmi-surround71-extra4, output:hdmi-surround71-extra4+input:analog-stereo

Card #1
 Name: alsa_card.usb-KORG_INC._ToneLabST-00
 Driver: module-alsa-card.c
 Owner Module: 26
 Properties:
 alsa.card = "1"
 alsa.card_name = "ToneLabST"
 alsa.long_card_name = "KORG INC. ToneLabST at usb-0000:00:14.0-3, full speed"
 alsa.driver_name = "snd_usb_audio"
 device.bus_path = "pci-0000:00:14.0-usb-0:3:1.0"
 sysfs.path = "/devices/pci0000:00/0000:00:14.0/usb1/1-3/1-3:1.0/sound/card1"
 udev.id = "usb-KORG_INC._ToneLabST-00"
 device.bus = "usb"
 device.vendor.id = "0944"
 device.vendor.name = "KORG, Inc."
 device.product.id = "0201"
 device.product.name = "ToneLabST"
 device.serial = "KORG_INC._ToneLabST"
 device.string = "1"
 device.description = "ToneLabST"
 module-udev-detect.discovered = "1"
 device.icon_name = "audio-card-usb"
 Profiles:
 input:analog-stereo: Analog Stereo Input (sinks: 0, sources: 1, priority: 60, available: yes)
 input:iec958-stereo: Digital Stereo (IEC958) Input (sinks: 0, sources: 1, priority: 55, available: yes)
 output:analog-stereo: Analog Stereo Output (sinks: 1, sources: 0, priority: 6000, available: yes)
 output:analog-stereo+input:analog-stereo: Analog Stereo Duplex (sinks: 1, sources: 1, priority: 6060, available: yes)
 output:analog-stereo+input:iec958-stereo: Analog Stereo Output + Digital Stereo (IEC958) Input (sinks: 1, sources: 1, priority: 6055, available: yes)
 output:iec958-stereo: Digital Stereo (IEC958) Output (sinks: 1, sources: 0, priority: 5500, available: yes)
 output:iec958-stereo+input:analog-stereo: Digital Stereo (IEC958) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 5560, available: yes)
 output:iec958-stereo+input:iec958-stereo: Digital Stereo Duplex (IEC958) (sinks: 1, sources: 1, priority: 5555, available: yes)
 off: Off (sinks: 0, sources: 0, priority: 0, available: yes)
 Active Profile: output:analog-stereo+input:analog-stereo
 Ports:
 analog-input: Analog Input (priority: 10000, latency offset: 0 usec)
 Part of profile(s): input:analog-stereo, output:analog-stereo+input:analog-stereo, output:iec958-stereo+input:analog-stereo
 iec958-stereo-input: Digital Input (S/PDIF) (priority: 0, latency offset: 0 usec)
 Part of profile(s): input:iec958-stereo, output:analog-stereo+input:iec958-stereo, output:iec958-stereo+input:iec958-stereo
 analog-output: Analog Output (priority: 9900, latency offset: 0 usec)
 Part of profile(s): output:analog-stereo, output:analog-stereo+input:analog-stereo, output:analog-stereo+input:iec958-stereo
 iec958-stereo-output: Digital Output (S/PDIF) (priority: 0, latency offset: 0 usec)
 Part of profile(s): output:iec958-stereo, output:iec958-stereo+input:analog-stereo, output:iec958-stereo+input:iec958-stereo





sound pulseaudio alsa jack







share|improve this question















I'm using jack2 on Ubuntu 16.04 LTS by installing jack, jack-tools and qjackctl from the official repositories.



My USB sound connection feeds 44100 Hz into jack. Jack is configured (through qjackctl) to run at 44100 Hz. However, it automatically changes to 48000 Hz on run, causing the pitch from the speakers to be about 2 notes higher and the following message to show:



ERROR: playback and capture sample rates do not match (48000 vs. 44100)


I've read through tons of (very old) discussion about sampling rates having to do with jack, alsa, or pulse audio, and adding a file called .asoundrc which doesn't seem to do anything anymore. But either way, this is all out of my league. I just want to change the "playback sample rate" to 44100 Hz. Can someone explain what steps I should take in 2018 (or 2016 - Ubuntu 16.04) just so jack won't play back my 44100 Hz input as 48000 Hz?



USB device:



$ cat /proc/asound/card1/stream0 
KORG INC. ToneLabST at usb-0000:00:14.0-1, full speed : USB Audio

Playback:
 Status: Stop
 Interface 1
 Altset 1
 Format: S16_LE
 Channels: 2
 Endpoint: 1 OUT (ADAPTIVE)
 Rates: 44100

Capture:
 Status: Stop
 Interface 2
 Altset 1
 Format: S16_LE
 Channels: 2
 Endpoint: 2 IN (ASYNC)
 Rates: 44100


Possibly related reports:



  • github.com/rncbc/qjackctl - Would displaying both sampling rates avoid confusion?

  • github.com/jackaudio/jack2 - Jack won't change sample rate

Update August 2018



I did a fresh installation of Ubuntu 18.04 LTS and tried this again.



sudo apt update
sudo apt install jack jack-tools qjackctl 
env QT_SCALE_FACTOR=1.5 qjackctl


At this time I'm plugging in the ToneLab ST USB cable. I'm experiencing the same problem. Notice how the frequencies mismatch.



Starting jack server...
JACK server starting in realtime mode with priority 10
self-connect-mode is "Don't restrict self connect requests"
Acquired audio card Audio1
Acquired audio card Audio0
creating alsa driver ... hw:PCH|hw:ToneLabST,0|128|3|44100|0|0|nomon|swmeter|-|16bit
configuring for 44100Hz, period = 128 frames (2.9 ms), buffer = 3 periods
ALSA: final selected sample format for capture: 16bit little-endian
ALSA: use 3 periods for capture
ALSA: final selected sample format for playback: 16bit little-endian
ALSA: use 3 periods for playback
ERROR: playback and capture sample rates do not match (48000 vs. 44100)


By request, here's aplay -l:



**** List of PLAYBACK Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: CX8200 Analog [CX8200 Analog]
 Subdevices: 0/1
 Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0]
 Subdevices: 1/1
 Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 7: HDMI 1 [HDMI 1]
 Subdevices: 1/1
 Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 8: HDMI 2 [HDMI 2]
 Subdevices: 1/1
 Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 9: HDMI 3 [HDMI 3]
 Subdevices: 1/1
 Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 10: HDMI 4 [HDMI 4]
 Subdevices: 1/1
 Subdevice #0: subdevice #0
card 1: ToneLabST [ToneLabST], device 0: USB Audio [USB Audio]
 Subdevices: 1/1
 Subdevice #0: subdevice #0


And here is pactl list cards:



Card #0
 Name: alsa_card.pci-0000_00_1f.3
 Driver: module-alsa-card.c
 Owner Module: 7
 Properties:
 alsa.card = "0"
 alsa.card_name = "HDA Intel PCH"
 alsa.long_card_name = "HDA Intel PCH at 0xec340000 irq 146"
 alsa.driver_name = "snd_hda_intel"
 device.bus_path = "pci-0000:00:1f.3"
 sysfs.path = "/devices/pci0000:00/0000:00:1f.3/sound/card0"
 device.bus = "pci"
 device.vendor.id = "8086"
 device.vendor.name = "Intel Corporation"
 device.product.id = "9d71"
 device.product.name = "Sunrise Point-LP HD Audio"
 device.form_factor = "internal"
 device.string = "0"
 device.description = "Built-in Audio"
 module-udev-detect.discovered = "1"
 device.icon_name = "audio-card-pci"
 Profiles:
 input:analog-stereo: Analog Stereo Input (sinks: 0, sources: 1, priority: 60, available: yes)
 output:analog-stereo: Analog Stereo Output (sinks: 1, sources: 0, priority: 6000, available: yes)
 output:analog-stereo+input:analog-stereo: Analog Stereo Duplex (sinks: 1, sources: 1, priority: 6060, available: yes)
 output:hdmi-stereo: Digital Stereo (HDMI) Output (sinks: 1, sources: 0, priority: 5400, available: no)
 output:hdmi-stereo+input:analog-stereo: Digital Stereo (HDMI) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 5460, available: yes)
 output:hdmi-surround: Digital Surround 5.1 (HDMI) Output (sinks: 1, sources: 0, priority: 300, available: no)
 output:hdmi-surround+input:analog-stereo: Digital Surround 5.1 (HDMI) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 360, available: yes)
 output:hdmi-surround71: Digital Surround 7.1 (HDMI) Output (sinks: 1, sources: 0, priority: 300, available: no)
 output:hdmi-surround71+input:analog-stereo: Digital Surround 7.1 (HDMI) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 360, available: yes)
 output:hdmi-stereo-extra1: Digital Stereo (HDMI 2) Output (sinks: 1, sources: 0, priority: 5200, available: no)
 output:hdmi-stereo-extra1+input:analog-stereo: Digital Stereo (HDMI 2) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 5260, available: yes)
 output:hdmi-surround-extra1: Digital Surround 5.1 (HDMI 2) Output (sinks: 1, sources: 0, priority: 100, available: no)
 output:hdmi-surround-extra1+input:analog-stereo: Digital Surround 5.1 (HDMI 2) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 160, available: yes)
 output:hdmi-surround71-extra1: Digital Surround 7.1 (HDMI 2) Output (sinks: 1, sources: 0, priority: 100, available: no)
 output:hdmi-surround71-extra1+input:analog-stereo: Digital Surround 7.1 (HDMI 2) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 160, available: yes)
 output:hdmi-stereo-extra2: Digital Stereo (HDMI 3) Output (sinks: 1, sources: 0, priority: 5200, available: no)
 output:hdmi-stereo-extra2+input:analog-stereo: Digital Stereo (HDMI 3) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 5260, available: yes)
 output:hdmi-surround-extra2: Digital Surround 5.1 (HDMI 3) Output (sinks: 1, sources: 0, priority: 100, available: no)
 output:hdmi-surround-extra2+input:analog-stereo: Digital Surround 5.1 (HDMI 3) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 160, available: yes)
 output:hdmi-surround71-extra2: Digital Surround 7.1 (HDMI 3) Output (sinks: 1, sources: 0, priority: 100, available: no)
 output:hdmi-surround71-extra2+input:analog-stereo: Digital Surround 7.1 (HDMI 3) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 160, available: yes)
 output:hdmi-stereo-extra3: Digital Stereo (HDMI 4) Output (sinks: 1, sources: 0, priority: 5200, available: no)
 output:hdmi-stereo-extra3+input:analog-stereo: Digital Stereo (HDMI 4) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 5260, available: yes)
 output:hdmi-surround-extra3: Digital Surround 5.1 (HDMI 4) Output (sinks: 1, sources: 0, priority: 100, available: no)
 output:hdmi-surround-extra3+input:analog-stereo: Digital Surround 5.1 (HDMI 4) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 160, available: yes)
 output:hdmi-surround71-extra3: Digital Surround 7.1 (HDMI 4) Output (sinks: 1, sources: 0, priority: 100, available: no)
 output:hdmi-surround71-extra3+input:analog-stereo: Digital Surround 7.1 (HDMI 4) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 160, available: yes)
 output:hdmi-stereo-extra4: Digital Stereo (HDMI 5) Output (sinks: 1, sources: 0, priority: 5200, available: no)
 output:hdmi-stereo-extra4+input:analog-stereo: Digital Stereo (HDMI 5) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 5260, available: yes)
 output:hdmi-surround-extra4: Digital Surround 5.1 (HDMI 5) Output (sinks: 1, sources: 0, priority: 100, available: no)
 output:hdmi-surround-extra4+input:analog-stereo: Digital Surround 5.1 (HDMI 5) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 160, available: yes)
 output:hdmi-surround71-extra4: Digital Surround 7.1 (HDMI 5) Output (sinks: 1, sources: 0, priority: 100, available: no)
 output:hdmi-surround71-extra4+input:analog-stereo: Digital Surround 7.1 (HDMI 5) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 160, available: yes)
 off: Off (sinks: 0, sources: 0, priority: 0, available: yes)
 Active Profile: output:analog-stereo+input:analog-stereo
 Ports:
 analog-input-internal-mic: Internal Microphone (priority: 8900, latency offset: 0 usec)
 Properties:
 device.icon_name = "audio-input-microphone"
 Part of profile(s): input:analog-stereo, output:analog-stereo+input:analog-stereo, output:hdmi-stereo+input:analog-stereo, output:hdmi-surround+input:analog-stereo, output:hdmi-surround71+input:analog-stereo, output:hdmi-stereo-extra1+input:analog-stereo, output:hdmi-surround-extra1+input:analog-stereo, output:hdmi-surround71-extra1+input:analog-stereo, output:hdmi-stereo-extra2+input:analog-stereo, output:hdmi-surround-extra2+input:analog-stereo, output:hdmi-surround71-extra2+input:analog-stereo, output:hdmi-stereo-extra3+input:analog-stereo, output:hdmi-surround-extra3+input:analog-stereo, output:hdmi-surround71-extra3+input:analog-stereo, output:hdmi-stereo-extra4+input:analog-stereo, output:hdmi-surround-extra4+input:analog-stereo, output:hdmi-surround71-extra4+input:analog-stereo
 analog-input-mic: Microphone (priority: 8700, latency offset: 0 usec, not available)
 Properties:
 device.icon_name = "audio-input-microphone"
 Part of profile(s): input:analog-stereo, output:analog-stereo+input:analog-stereo, output:hdmi-stereo+input:analog-stereo, output:hdmi-surround+input:analog-stereo, output:hdmi-surround71+input:analog-stereo, output:hdmi-stereo-extra1+input:analog-stereo, output:hdmi-surround-extra1+input:analog-stereo, output:hdmi-surround71-extra1+input:analog-stereo, output:hdmi-stereo-extra2+input:analog-stereo, output:hdmi-surround-extra2+input:analog-stereo, output:hdmi-surround71-extra2+input:analog-stereo, output:hdmi-stereo-extra3+input:analog-stereo, output:hdmi-surround-extra3+input:analog-stereo, output:hdmi-surround71-extra3+input:analog-stereo, output:hdmi-stereo-extra4+input:analog-stereo, output:hdmi-surround-extra4+input:analog-stereo, output:hdmi-surround71-extra4+input:analog-stereo
 analog-output-speaker: Speakers (priority: 10000, latency offset: 0 usec)
 Properties:
 device.icon_name = "audio-speakers"
 Part of profile(s): output:analog-stereo, output:analog-stereo+input:analog-stereo
 analog-output-headphones: Headphones (priority: 9000, latency offset: 0 usec, not available)
 Properties:
 device.icon_name = "audio-headphones"
 Part of profile(s): output:analog-stereo, output:analog-stereo+input:analog-stereo
 hdmi-output-0: HDMI / DisplayPort (priority: 5900, latency offset: 0 usec, not available)
 Properties:
 device.icon_name = "video-display"
 Part of profile(s): output:hdmi-stereo, output:hdmi-stereo+input:analog-stereo, output:hdmi-surround, output:hdmi-surround+input:analog-stereo, output:hdmi-surround71, output:hdmi-surround71+input:analog-stereo
 hdmi-output-1: HDMI / DisplayPort 2 (priority: 5800, latency offset: 0 usec, not available)
 Properties:
 device.icon_name = "video-display"
 Part of profile(s): output:hdmi-stereo-extra1, output:hdmi-stereo-extra1+input:analog-stereo, output:hdmi-surround-extra1, output:hdmi-surround-extra1+input:analog-stereo, output:hdmi-surround71-extra1, output:hdmi-surround71-extra1+input:analog-stereo
 hdmi-output-2: HDMI / DisplayPort 3 (priority: 5700, latency offset: 0 usec, not available)
 Properties:
 device.icon_name = "video-display"
 Part of profile(s): output:hdmi-stereo-extra2, output:hdmi-stereo-extra2+input:analog-stereo, output:hdmi-surround-extra2, output:hdmi-surround-extra2+input:analog-stereo, output:hdmi-surround71-extra2, output:hdmi-surround71-extra2+input:analog-stereo
 hdmi-output-3: HDMI / DisplayPort 4 (priority: 5600, latency offset: 0 usec, not available)
 Properties:
 device.icon_name = "video-display"
 Part of profile(s): output:hdmi-stereo-extra3, output:hdmi-stereo-extra3+input:analog-stereo, output:hdmi-surround-extra3, output:hdmi-surround-extra3+input:analog-stereo, output:hdmi-surround71-extra3, output:hdmi-surround71-extra3+input:analog-stereo
 hdmi-output-4: HDMI / DisplayPort 5 (priority: 5500, latency offset: 0 usec, not available)
 Properties:
 device.icon_name = "video-display"
 Part of profile(s): output:hdmi-stereo-extra4, output:hdmi-stereo-extra4+input:analog-stereo, output:hdmi-surround-extra4, output:hdmi-surround-extra4+input:analog-stereo, output:hdmi-surround71-extra4, output:hdmi-surround71-extra4+input:analog-stereo

Card #1
 Name: alsa_card.usb-KORG_INC._ToneLabST-00
 Driver: module-alsa-card.c
 Owner Module: 26
 Properties:
 alsa.card = "1"
 alsa.card_name = "ToneLabST"
 alsa.long_card_name = "KORG INC. ToneLabST at usb-0000:00:14.0-3, full speed"
 alsa.driver_name = "snd_usb_audio"
 device.bus_path = "pci-0000:00:14.0-usb-0:3:1.0"
 sysfs.path = "/devices/pci0000:00/0000:00:14.0/usb1/1-3/1-3:1.0/sound/card1"
 udev.id = "usb-KORG_INC._ToneLabST-00"
 device.bus = "usb"
 device.vendor.id = "0944"
 device.vendor.name = "KORG, Inc."
 device.product.id = "0201"
 device.product.name = "ToneLabST"
 device.serial = "KORG_INC._ToneLabST"
 device.string = "1"
 device.description = "ToneLabST"
 module-udev-detect.discovered = "1"
 device.icon_name = "audio-card-usb"
 Profiles:
 input:analog-stereo: Analog Stereo Input (sinks: 0, sources: 1, priority: 60, available: yes)
 input:iec958-stereo: Digital Stereo (IEC958) Input (sinks: 0, sources: 1, priority: 55, available: yes)
 output:analog-stereo: Analog Stereo Output (sinks: 1, sources: 0, priority: 6000, available: yes)
 output:analog-stereo+input:analog-stereo: Analog Stereo Duplex (sinks: 1, sources: 1, priority: 6060, available: yes)
 output:analog-stereo+input:iec958-stereo: Analog Stereo Output + Digital Stereo (IEC958) Input (sinks: 1, sources: 1, priority: 6055, available: yes)
 output:iec958-stereo: Digital Stereo (IEC958) Output (sinks: 1, sources: 0, priority: 5500, available: yes)
 output:iec958-stereo+input:analog-stereo: Digital Stereo (IEC958) Output + Analog Stereo Input (sinks: 1, sources: 1, priority: 5560, available: yes)
 output:iec958-stereo+input:iec958-stereo: Digital Stereo Duplex (IEC958) (sinks: 1, sources: 1, priority: 5555, available: yes)
 off: Off (sinks: 0, sources: 0, priority: 0, available: yes)
 Active Profile: output:analog-stereo+input:analog-stereo
 Ports:
 analog-input: Analog Input (priority: 10000, latency offset: 0 usec)
 Part of profile(s): input:analog-stereo, output:analog-stereo+input:analog-stereo, output:iec958-stereo+input:analog-stereo
 iec958-stereo-input: Digital Input (S/PDIF) (priority: 0, latency offset: 0 usec)
 Part of profile(s): input:iec958-stereo, output:analog-stereo+input:iec958-stereo, output:iec958-stereo+input:iec958-stereo
 analog-output: Analog Output (priority: 9900, latency offset: 0 usec)
 Part of profile(s): output:analog-stereo, output:analog-stereo+input:analog-stereo, output:analog-stereo+input:iec958-stereo
 iec958-stereo-output: Digital Output (S/PDIF) (priority: 0, latency offset: 0 usec)
 Part of profile(s): output:iec958-stereo, output:iec958-stereo+input:analog-stereo, output:iec958-stereo+input:iec958-stereo





sound pulseaudio alsa jack




sound pulseaudio alsa jack






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Aug 14 at 17:00

























asked Mar 20 at 13:01









Redsandro

1,56751733




1,56751733











  • Please show the contents of /proc/asound/cardX/stream0 of the USB device.
    – CL.
    Mar 20 at 17:53










  • @CL. - I've updated the description with the output of stream0.
    – Redsandro
    Mar 20 at 23:19










  • How exactly are you running Jack? Where did you configure the 44.1 kHz?
    – CL.
    Mar 21 at 7:53










  • @CL. Running and configuring through qjackctl.
    – Redsandro
    Mar 21 at 10:35










  • please add audio device information.aplay -l and pactl list cards. Possible that Korg USB device may require 48kHz. JACK will sometimes run better set to 48kHz than 44.1kHz with audio interfaces. Pulseaudio can usually cope with samplerate change no problem, but settings can be adjusted easily to use 48kHz samplerate if needed
    – nik gnomic
    Aug 13 at 15:25
















  • Please show the contents of /proc/asound/cardX/stream0 of the USB device.
    – CL.
    Mar 20 at 17:53










  • @CL. - I've updated the description with the output of stream0.
    – Redsandro
    Mar 20 at 23:19










  • How exactly are you running Jack? Where did you configure the 44.1 kHz?
    – CL.
    Mar 21 at 7:53










  • @CL. Running and configuring through qjackctl.
    – Redsandro
    Mar 21 at 10:35










  • please add audio device information.aplay -l and pactl list cards. Possible that Korg USB device may require 48kHz. JACK will sometimes run better set to 48kHz than 44.1kHz with audio interfaces. Pulseaudio can usually cope with samplerate change no problem, but settings can be adjusted easily to use 48kHz samplerate if needed
    – nik gnomic
    Aug 13 at 15:25















Please show the contents of /proc/asound/cardX/stream0 of the USB device.
– CL.
Mar 20 at 17:53




Please show the contents of /proc/asound/cardX/stream0 of the USB device.
– CL.
Mar 20 at 17:53












@CL. - I've updated the description with the output of stream0.
– Redsandro
Mar 20 at 23:19




@CL. - I've updated the description with the output of stream0.
– Redsandro
Mar 20 at 23:19












How exactly are you running Jack? Where did you configure the 44.1 kHz?
– CL.
Mar 21 at 7:53




How exactly are you running Jack? Where did you configure the 44.1 kHz?
– CL.
Mar 21 at 7:53












@CL. Running and configuring through qjackctl.
– Redsandro
Mar 21 at 10:35




@CL. Running and configuring through qjackctl.
– Redsandro
Mar 21 at 10:35












please add audio device information.aplay -l and pactl list cards. Possible that Korg USB device may require 48kHz. JACK will sometimes run better set to 48kHz than 44.1kHz with audio interfaces. Pulseaudio can usually cope with samplerate change no problem, but settings can be adjusted easily to use 48kHz samplerate if needed
– nik gnomic
Aug 13 at 15:25




please add audio device information.aplay -l and pactl list cards. Possible that Korg USB device may require 48kHz. JACK will sometimes run better set to 48kHz than 44.1kHz with audio interfaces. Pulseaudio can usually cope with samplerate change no problem, but settings can be adjusted easily to use 48kHz samplerate if needed
– nik gnomic
Aug 13 at 15:25















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