PulseAudio loopback module with crackling sound / noise under Kubuntu 17.10

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I tried to get audio from my second monitor into Kubuntu through the line-in stereo jack which is now basically working after fiddling with alsamixer (un-mute Line & getting volume settings right) and adding load-module module-loopback to my /etc/pulse/default.pa



My current and biggest problem with this setup is the crackling sound / noise I get while playing audio - even after adjusting the line-in volume to ~5% (everything above that is just painful) and increasing volume on my external amplifier. (Under Windows 10 I have no crackling / sound problems with this setup even with line-in volume of 100%)



What I've tried so far:



1) Having load-module module-udev-detect tsched=0 (adding the tsched=0)
in /etc/pulse/default.pa for deactivating timer-based scheduling in PulseAudio which helped other people with crackling sound.



2) Combining 1) with modifications in /etc/pulse/daemon.conf for setting the default fragment number and buffer size in PulseAudio (like here: https://wiki.archlinux.org/index.php/PulseAudio/Troubleshooting#Static_noise_when_using_headphones)



3) Explicitly writing the loopback source & sink with its rate and channels:



load-module module-loopback source=alsa_input.pci-0000_12_00.3.analog-stereo sink=alsa_output.usb-FiiO_DigiHug_USB_Audio-01.analog-stereo rate=44100 channels=2


And 4) modifying /etc/modprobe.d/alsa-base.conf with options snd-hda-intel position_fix=1 or options snd-hda-intel position_fix=2 which was suggested here: https://wiki.ubuntu.com/Audio/PositionReporting



My system:



  • Kubuntu 17.10, 64 Bit

  • Kernel-Version 4.13.0-36-generic

  • AMD Ryzen 7 1700X CPU

  • 16 GB RAM

  • ASRock X370 Taichi motherboard

  • Nvidia GTX 1070 GPU

lspci -nnk | grep -i audio -A2
0e:00.1 Audio device [0403]: NVIDIA Corporation GP104 High Definition Audio Controller [10de:10f0] (rev a1)
 Subsystem: CardExpert Technology GP104 High Definition Audio Controller [10b0:1b81]
 Kernel driver in use: snd_hda_intel
 Kernel modules: snd_hda_intel
--
12:00.3 Audio device [0403]: Advanced Micro Devices, Inc. [AMD] Device [1022:1457]
 Subsystem: ASRock Incorporation Device [1849:1220]
 Kernel driver in use: snd_hda_intel


cat /proc/asound/cards
 0 [NVidia ]: HDA-Intel - HDA NVidia
 HDA NVidia at 0xfd080000 irq 329 
 1 [Audio ]: USB-Audio - DigiHug USB Audio 
 FiiO DigiHug USB Audio at usb-0000:11:00.3-2, full speed
 2 [Generic ]: HDA-Intel - HD-Audio Generic
 HD-Audio Generic at 0xfd900000 irq 331


pactl list sources
Quelle #0
 Status: RUNNING
 Name: alsa_output.usb-FiiO_DigiHug_USB_Audio-01.analog-stereo.monitor
 Beschreibung: Monitor of DigiHug USB Audio Analog Stereo
 Treiber: module-alsa-card.c
 Abtastwert-Angabe: s16le 2ch 44100Hz
 Kanalzuordnung: front-left,front-right
 Besitzer-Modul: 7
 Stumm: ja
 Lautstärke: front-left: 65536 / 100% / 0,00 dB, front-right: 65536 / 100% / 0,00 dB
 Verteilung 0,00
 Basis-Lautstärke: 65536 / 100% / 0,00 dB
 Ziel-Monitor: alsa_output.usb-FiiO_DigiHug_USB_Audio-01.analog-stereo
 Latenz: 0 usec, eingestellt 40000 usec
 Flags: DECIBEL_VOLUME LATENCY 
 Eigenschaften:
 device.description = "Monitor of DigiHug USB Audio Analog Stereo"
 device.class = "monitor"
 alsa.card = "1"
 alsa.card_name = "DigiHug USB Audio"
 alsa.long_card_name = "FiiO DigiHug USB Audio at usb-0000:11:00.3-2, full speed"
 alsa.driver_name = "snd_usb_audio"
 device.bus_path = "pci-0000:11:00.3-usb-0:2:1.1"
 sysfs.path = "/devices/pci0000:00/0000:00:07.1/0000:11:00.3/usb3/3-2/3-2:1.1/sound/card1"
 udev.id = "usb-FiiO_DigiHug_USB_Audio-01"
 device.bus = "usb"
 device.vendor.id = "1852"
 device.vendor.name = "GYROCOM C&C Co., LTD"
 device.product.id = "7022"
 device.product.name = "DigiHug USB Audio"
 device.serial = "FiiO_DigiHug_USB_Audio"
 device.string = "1"
 module-udev-detect.discovered = "1"
 device.icon_name = "audio-card-usb"
 Formate:
 pcm

Quelle #1
 Status: RUNNING
 Name: alsa_input.pci-0000_12_00.3.analog-stereo
 Beschreibung: HD-Audio Generic Analog Stereo
 Treiber: module-alsa-card.c
 Abtastwert-Angabe: s16le 2ch 44100Hz
 Kanalzuordnung: front-left,front-right
 Besitzer-Modul: 8
 Stumm: nein
 Lautstärke: front-left: 6554 / 10% / -60,00 dB, front-right: 6554 / 10% / -60,00 dB
 Verteilung 0,00
 Basis-Lautstärke: 6554 / 10% / -60,00 dB
 Ziel-Monitor: k. A.
 Latenz: 30 usec, eingestellt 40000 usec
 Flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY 
 Eigenschaften:
 alsa.resolution_bits = "16"
 device.api = "alsa"
 device.class = "sound"
 alsa.class = "generic"
 alsa.subclass = "generic-mix"
 alsa.name = "ALC1220 Analog"
 alsa.id = "ALC1220 Analog"
 alsa.subdevice = "0"
 alsa.subdevice_name = "subdevice #0"
 alsa.device = "0"
 alsa.card = "2"
 alsa.card_name = "HD-Audio Generic"
 alsa.long_card_name = "HD-Audio Generic at 0xfd900000 irq 331"
 alsa.driver_name = "snd_hda_intel"
 device.bus_path = "pci-0000:12:00.3"
 sysfs.path = "/devices/pci0000:00/0000:00:08.1/0000:12:00.3/sound/card2"
 device.bus = "pci"
 device.vendor.id = "1022"
 device.vendor.name = "Advanced Micro Devices, Inc. [AMD]"
 device.product.id = "1457"
 device.string = "front:2"
 device.buffering.buffer_size = "65536"
 device.buffering.fragment_size = "32768"
 device.access_mode = "mmap+timer"
 device.profile.name = "analog-stereo"
 device.profile.description = "Analog Stereo"
 device.description = "HD-Audio Generic Analog Stereo"
 alsa.mixer_name = "Realtek ALC1220"
 alsa.components = "HDA:10ec1220,18491220,00100003"
 module-udev-detect.discovered = "1"
 device.icon_name = "audio-card-pci"
 Ports:
 analog-input-front-mic: Vorderes Mikrofon (priority: 8500, not available)
 analog-input-rear-mic: Rückwärtiges Mikrofon (priority: 8200, not available)
 analog-input-linein: Eingang (priority: 8100, available)
 Aktiver Port: analog-input-linein
 Formate:
 pcm


pactl list sinks
Ziel #0
 Status: RUNNING
 Name: alsa_output.usb-FiiO_DigiHug_USB_Audio-01.analog-stereo
 Beschreibung: DigiHug USB Audio Analog Stereo
 Treiber: module-alsa-card.c
 Abtastwert-Angabe: s16le 2ch 44100Hz
 Kanalzuordnung: front-left,front-right
 Besitzer-Modul: 7
 Stumm: nein
 Lautstärke: front-left: 65536 / 100% / 0,00 dB, front-right: 65536 / 100% / 0,00 dB
 Verteilung 0,00
 Basis-Lautstärke: 65536 / 100% / 0,00 dB
 Quellen-Monitor: alsa_output.usb-FiiO_DigiHug_USB_Audio-01.analog-stereo.monitor
 Latenz: 46296 usec, eingestellt 40000 usec
 Flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY 
 Eigenschaften:
 alsa.resolution_bits = "16"
 device.api = "alsa"
 device.class = "sound"
 alsa.class = "generic"
 alsa.subclass = "generic-mix"
 alsa.name = "USB Audio"
 alsa.id = "USB Audio"
 alsa.subdevice = "0"
 alsa.subdevice_name = "subdevice #0"
 alsa.device = "0"
 alsa.card = "1"
 alsa.card_name = "DigiHug USB Audio"
 alsa.long_card_name = "FiiO DigiHug USB Audio at usb-0000:11:00.3-2, full speed"
 alsa.driver_name = "snd_usb_audio"
 device.bus_path = "pci-0000:11:00.3-usb-0:2:1.1"
 sysfs.path = "/devices/pci0000:00/0000:00:07.1/0000:11:00.3/usb3/3-2/3-2:1.1/sound/card1"
 udev.id = "usb-FiiO_DigiHug_USB_Audio-01"
 device.bus = "usb"
 device.vendor.id = "1852"
 device.vendor.name = "GYROCOM C&C Co., LTD"
 device.product.id = "7022"
 device.product.name = "DigiHug USB Audio"
 device.serial = "FiiO_DigiHug_USB_Audio"
 device.string = "front:1"
 device.buffering.buffer_size = "352800"
 device.buffering.fragment_size = "176400"
 device.access_mode = "mmap+timer"
 device.profile.name = "analog-stereo"
 device.profile.description = "Analog Stereo"
 device.description = "DigiHug USB Audio Analog Stereo"
 alsa.mixer_name = "USB Mixer"
 alsa.components = "USB1852:7022"
 module-udev-detect.discovered = "1"
 device.icon_name = "audio-card-usb"
 Ports:
 analog-output: Analoge Ausgabe (priority: 9900)
 Aktiver Port: analog-output
 Formate:
 pcm


My basic audio setup:



Inputs:



  • audio coming from second monitor into computer line-in

  • all other audio is coming from the system / applications / music

Output:



  • USB-DAC/AMP which my headphone is connected to





sound kubuntu pulseaudio alsa







share|improve this question





















  • What kernel are you running? I had a similar problem a while ago with a Z97 motherboard, and updating the kernel fixed it for me (at the time the Z97 was a new board/chipset). Perhaps try upgrading to the 4.15 kernel?
    – Vanessa Deagan
    Mar 13 at 17:38










  • At the moment I'm using 4.13.0-36 (generic, newest from the standard repo). I'm not that versed in Linux, but from what I gathered upgrading to a mainline kernel is kind of risky or rather 'advanced stuff' and can probably excavate/generate new problems? My motherboard is not that new (first Ryzen-generation) so I'd hope any normal fixes should already be included in the current kernel. But nevertheless I thank you for the suggestion! :)
    – Vorkosik
    Mar 14 at 12:30










  • Run in terminal alsamixer, hit f5 to select all controls and mute Mic Boost (+20db) if enabled.
    – Michal Przybylowicz
    Mar 14 at 22:09










  • Thanks for the suggestion - I already did that first whilst trying to get the line-in to work. Currently I have all boosts (2x Mic Boosts and 1x Line Boost) at '0' (no mute-option there) and a setting named Capture at 5 (the aforementioned 5% volume). In fact I tried muting all options not related to line-in but no constellation got rid of the problem.
    – Vorkosik
    Mar 15 at 0:12














up vote
0
down vote

favorite












I tried to get audio from my second monitor into Kubuntu through the line-in stereo jack which is now basically working after fiddling with alsamixer (un-mute Line & getting volume settings right) and adding load-module module-loopback to my /etc/pulse/default.pa



My current and biggest problem with this setup is the crackling sound / noise I get while playing audio - even after adjusting the line-in volume to ~5% (everything above that is just painful) and increasing volume on my external amplifier. (Under Windows 10 I have no crackling / sound problems with this setup even with line-in volume of 100%)



What I've tried so far:



1) Having load-module module-udev-detect tsched=0 (adding the tsched=0)
in /etc/pulse/default.pa for deactivating timer-based scheduling in PulseAudio which helped other people with crackling sound.



2) Combining 1) with modifications in /etc/pulse/daemon.conf for setting the default fragment number and buffer size in PulseAudio (like here: https://wiki.archlinux.org/index.php/PulseAudio/Troubleshooting#Static_noise_when_using_headphones)



3) Explicitly writing the loopback source & sink with its rate and channels:



load-module module-loopback source=alsa_input.pci-0000_12_00.3.analog-stereo sink=alsa_output.usb-FiiO_DigiHug_USB_Audio-01.analog-stereo rate=44100 channels=2


And 4) modifying /etc/modprobe.d/alsa-base.conf with options snd-hda-intel position_fix=1 or options snd-hda-intel position_fix=2 which was suggested here: https://wiki.ubuntu.com/Audio/PositionReporting



My system:



  • Kubuntu 17.10, 64 Bit

  • Kernel-Version 4.13.0-36-generic

  • AMD Ryzen 7 1700X CPU

  • 16 GB RAM

  • ASRock X370 Taichi motherboard

  • Nvidia GTX 1070 GPU

lspci -nnk | grep -i audio -A2
0e:00.1 Audio device [0403]: NVIDIA Corporation GP104 High Definition Audio Controller [10de:10f0] (rev a1)
 Subsystem: CardExpert Technology GP104 High Definition Audio Controller [10b0:1b81]
 Kernel driver in use: snd_hda_intel
 Kernel modules: snd_hda_intel
--
12:00.3 Audio device [0403]: Advanced Micro Devices, Inc. [AMD] Device [1022:1457]
 Subsystem: ASRock Incorporation Device [1849:1220]
 Kernel driver in use: snd_hda_intel


cat /proc/asound/cards
 0 [NVidia ]: HDA-Intel - HDA NVidia
 HDA NVidia at 0xfd080000 irq 329 
 1 [Audio ]: USB-Audio - DigiHug USB Audio 
 FiiO DigiHug USB Audio at usb-0000:11:00.3-2, full speed
 2 [Generic ]: HDA-Intel - HD-Audio Generic
 HD-Audio Generic at 0xfd900000 irq 331


pactl list sources
Quelle #0
 Status: RUNNING
 Name: alsa_output.usb-FiiO_DigiHug_USB_Audio-01.analog-stereo.monitor
 Beschreibung: Monitor of DigiHug USB Audio Analog Stereo
 Treiber: module-alsa-card.c
 Abtastwert-Angabe: s16le 2ch 44100Hz
 Kanalzuordnung: front-left,front-right
 Besitzer-Modul: 7
 Stumm: ja
 Lautstärke: front-left: 65536 / 100% / 0,00 dB, front-right: 65536 / 100% / 0,00 dB
 Verteilung 0,00
 Basis-Lautstärke: 65536 / 100% / 0,00 dB
 Ziel-Monitor: alsa_output.usb-FiiO_DigiHug_USB_Audio-01.analog-stereo
 Latenz: 0 usec, eingestellt 40000 usec
 Flags: DECIBEL_VOLUME LATENCY 
 Eigenschaften:
 device.description = "Monitor of DigiHug USB Audio Analog Stereo"
 device.class = "monitor"
 alsa.card = "1"
 alsa.card_name = "DigiHug USB Audio"
 alsa.long_card_name = "FiiO DigiHug USB Audio at usb-0000:11:00.3-2, full speed"
 alsa.driver_name = "snd_usb_audio"
 device.bus_path = "pci-0000:11:00.3-usb-0:2:1.1"
 sysfs.path = "/devices/pci0000:00/0000:00:07.1/0000:11:00.3/usb3/3-2/3-2:1.1/sound/card1"
 udev.id = "usb-FiiO_DigiHug_USB_Audio-01"
 device.bus = "usb"
 device.vendor.id = "1852"
 device.vendor.name = "GYROCOM C&C Co., LTD"
 device.product.id = "7022"
 device.product.name = "DigiHug USB Audio"
 device.serial = "FiiO_DigiHug_USB_Audio"
 device.string = "1"
 module-udev-detect.discovered = "1"
 device.icon_name = "audio-card-usb"
 Formate:
 pcm

Quelle #1
 Status: RUNNING
 Name: alsa_input.pci-0000_12_00.3.analog-stereo
 Beschreibung: HD-Audio Generic Analog Stereo
 Treiber: module-alsa-card.c
 Abtastwert-Angabe: s16le 2ch 44100Hz
 Kanalzuordnung: front-left,front-right
 Besitzer-Modul: 8
 Stumm: nein
 Lautstärke: front-left: 6554 / 10% / -60,00 dB, front-right: 6554 / 10% / -60,00 dB
 Verteilung 0,00
 Basis-Lautstärke: 6554 / 10% / -60,00 dB
 Ziel-Monitor: k. A.
 Latenz: 30 usec, eingestellt 40000 usec
 Flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY 
 Eigenschaften:
 alsa.resolution_bits = "16"
 device.api = "alsa"
 device.class = "sound"
 alsa.class = "generic"
 alsa.subclass = "generic-mix"
 alsa.name = "ALC1220 Analog"
 alsa.id = "ALC1220 Analog"
 alsa.subdevice = "0"
 alsa.subdevice_name = "subdevice #0"
 alsa.device = "0"
 alsa.card = "2"
 alsa.card_name = "HD-Audio Generic"
 alsa.long_card_name = "HD-Audio Generic at 0xfd900000 irq 331"
 alsa.driver_name = "snd_hda_intel"
 device.bus_path = "pci-0000:12:00.3"
 sysfs.path = "/devices/pci0000:00/0000:00:08.1/0000:12:00.3/sound/card2"
 device.bus = "pci"
 device.vendor.id = "1022"
 device.vendor.name = "Advanced Micro Devices, Inc. [AMD]"
 device.product.id = "1457"
 device.string = "front:2"
 device.buffering.buffer_size = "65536"
 device.buffering.fragment_size = "32768"
 device.access_mode = "mmap+timer"
 device.profile.name = "analog-stereo"
 device.profile.description = "Analog Stereo"
 device.description = "HD-Audio Generic Analog Stereo"
 alsa.mixer_name = "Realtek ALC1220"
 alsa.components = "HDA:10ec1220,18491220,00100003"
 module-udev-detect.discovered = "1"
 device.icon_name = "audio-card-pci"
 Ports:
 analog-input-front-mic: Vorderes Mikrofon (priority: 8500, not available)
 analog-input-rear-mic: Rückwärtiges Mikrofon (priority: 8200, not available)
 analog-input-linein: Eingang (priority: 8100, available)
 Aktiver Port: analog-input-linein
 Formate:
 pcm


pactl list sinks
Ziel #0
 Status: RUNNING
 Name: alsa_output.usb-FiiO_DigiHug_USB_Audio-01.analog-stereo
 Beschreibung: DigiHug USB Audio Analog Stereo
 Treiber: module-alsa-card.c
 Abtastwert-Angabe: s16le 2ch 44100Hz
 Kanalzuordnung: front-left,front-right
 Besitzer-Modul: 7
 Stumm: nein
 Lautstärke: front-left: 65536 / 100% / 0,00 dB, front-right: 65536 / 100% / 0,00 dB
 Verteilung 0,00
 Basis-Lautstärke: 65536 / 100% / 0,00 dB
 Quellen-Monitor: alsa_output.usb-FiiO_DigiHug_USB_Audio-01.analog-stereo.monitor
 Latenz: 46296 usec, eingestellt 40000 usec
 Flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY 
 Eigenschaften:
 alsa.resolution_bits = "16"
 device.api = "alsa"
 device.class = "sound"
 alsa.class = "generic"
 alsa.subclass = "generic-mix"
 alsa.name = "USB Audio"
 alsa.id = "USB Audio"
 alsa.subdevice = "0"
 alsa.subdevice_name = "subdevice #0"
 alsa.device = "0"
 alsa.card = "1"
 alsa.card_name = "DigiHug USB Audio"
 alsa.long_card_name = "FiiO DigiHug USB Audio at usb-0000:11:00.3-2, full speed"
 alsa.driver_name = "snd_usb_audio"
 device.bus_path = "pci-0000:11:00.3-usb-0:2:1.1"
 sysfs.path = "/devices/pci0000:00/0000:00:07.1/0000:11:00.3/usb3/3-2/3-2:1.1/sound/card1"
 udev.id = "usb-FiiO_DigiHug_USB_Audio-01"
 device.bus = "usb"
 device.vendor.id = "1852"
 device.vendor.name = "GYROCOM C&C Co., LTD"
 device.product.id = "7022"
 device.product.name = "DigiHug USB Audio"
 device.serial = "FiiO_DigiHug_USB_Audio"
 device.string = "front:1"
 device.buffering.buffer_size = "352800"
 device.buffering.fragment_size = "176400"
 device.access_mode = "mmap+timer"
 device.profile.name = "analog-stereo"
 device.profile.description = "Analog Stereo"
 device.description = "DigiHug USB Audio Analog Stereo"
 alsa.mixer_name = "USB Mixer"
 alsa.components = "USB1852:7022"
 module-udev-detect.discovered = "1"
 device.icon_name = "audio-card-usb"
 Ports:
 analog-output: Analoge Ausgabe (priority: 9900)
 Aktiver Port: analog-output
 Formate:
 pcm


My basic audio setup:



Inputs:



  • audio coming from second monitor into computer line-in

  • all other audio is coming from the system / applications / music

Output:



  • USB-DAC/AMP which my headphone is connected to





sound kubuntu pulseaudio alsa







share|improve this question





















  • What kernel are you running? I had a similar problem a while ago with a Z97 motherboard, and updating the kernel fixed it for me (at the time the Z97 was a new board/chipset). Perhaps try upgrading to the 4.15 kernel?
    – Vanessa Deagan
    Mar 13 at 17:38










  • At the moment I'm using 4.13.0-36 (generic, newest from the standard repo). I'm not that versed in Linux, but from what I gathered upgrading to a mainline kernel is kind of risky or rather 'advanced stuff' and can probably excavate/generate new problems? My motherboard is not that new (first Ryzen-generation) so I'd hope any normal fixes should already be included in the current kernel. But nevertheless I thank you for the suggestion! :)
    – Vorkosik
    Mar 14 at 12:30










  • Run in terminal alsamixer, hit f5 to select all controls and mute Mic Boost (+20db) if enabled.
    – Michal Przybylowicz
    Mar 14 at 22:09










  • Thanks for the suggestion - I already did that first whilst trying to get the line-in to work. Currently I have all boosts (2x Mic Boosts and 1x Line Boost) at '0' (no mute-option there) and a setting named Capture at 5 (the aforementioned 5% volume). In fact I tried muting all options not related to line-in but no constellation got rid of the problem.
    – Vorkosik
    Mar 15 at 0:12












up vote
0
down vote

favorite









up vote
0
down vote

favorite











I tried to get audio from my second monitor into Kubuntu through the line-in stereo jack which is now basically working after fiddling with alsamixer (un-mute Line & getting volume settings right) and adding load-module module-loopback to my /etc/pulse/default.pa



My current and biggest problem with this setup is the crackling sound / noise I get while playing audio - even after adjusting the line-in volume to ~5% (everything above that is just painful) and increasing volume on my external amplifier. (Under Windows 10 I have no crackling / sound problems with this setup even with line-in volume of 100%)



What I've tried so far:



1) Having load-module module-udev-detect tsched=0 (adding the tsched=0)
in /etc/pulse/default.pa for deactivating timer-based scheduling in PulseAudio which helped other people with crackling sound.



2) Combining 1) with modifications in /etc/pulse/daemon.conf for setting the default fragment number and buffer size in PulseAudio (like here: https://wiki.archlinux.org/index.php/PulseAudio/Troubleshooting#Static_noise_when_using_headphones)



3) Explicitly writing the loopback source & sink with its rate and channels:



load-module module-loopback source=alsa_input.pci-0000_12_00.3.analog-stereo sink=alsa_output.usb-FiiO_DigiHug_USB_Audio-01.analog-stereo rate=44100 channels=2


And 4) modifying /etc/modprobe.d/alsa-base.conf with options snd-hda-intel position_fix=1 or options snd-hda-intel position_fix=2 which was suggested here: https://wiki.ubuntu.com/Audio/PositionReporting



My system:



  • Kubuntu 17.10, 64 Bit

  • Kernel-Version 4.13.0-36-generic

  • AMD Ryzen 7 1700X CPU

  • 16 GB RAM

  • ASRock X370 Taichi motherboard

  • Nvidia GTX 1070 GPU

lspci -nnk | grep -i audio -A2
0e:00.1 Audio device [0403]: NVIDIA Corporation GP104 High Definition Audio Controller [10de:10f0] (rev a1)
 Subsystem: CardExpert Technology GP104 High Definition Audio Controller [10b0:1b81]
 Kernel driver in use: snd_hda_intel
 Kernel modules: snd_hda_intel
--
12:00.3 Audio device [0403]: Advanced Micro Devices, Inc. [AMD] Device [1022:1457]
 Subsystem: ASRock Incorporation Device [1849:1220]
 Kernel driver in use: snd_hda_intel


cat /proc/asound/cards
 0 [NVidia ]: HDA-Intel - HDA NVidia
 HDA NVidia at 0xfd080000 irq 329 
 1 [Audio ]: USB-Audio - DigiHug USB Audio 
 FiiO DigiHug USB Audio at usb-0000:11:00.3-2, full speed
 2 [Generic ]: HDA-Intel - HD-Audio Generic
 HD-Audio Generic at 0xfd900000 irq 331


pactl list sources
Quelle #0
 Status: RUNNING
 Name: alsa_output.usb-FiiO_DigiHug_USB_Audio-01.analog-stereo.monitor
 Beschreibung: Monitor of DigiHug USB Audio Analog Stereo
 Treiber: module-alsa-card.c
 Abtastwert-Angabe: s16le 2ch 44100Hz
 Kanalzuordnung: front-left,front-right
 Besitzer-Modul: 7
 Stumm: ja
 Lautstärke: front-left: 65536 / 100% / 0,00 dB, front-right: 65536 / 100% / 0,00 dB
 Verteilung 0,00
 Basis-Lautstärke: 65536 / 100% / 0,00 dB
 Ziel-Monitor: alsa_output.usb-FiiO_DigiHug_USB_Audio-01.analog-stereo
 Latenz: 0 usec, eingestellt 40000 usec
 Flags: DECIBEL_VOLUME LATENCY 
 Eigenschaften:
 device.description = "Monitor of DigiHug USB Audio Analog Stereo"
 device.class = "monitor"
 alsa.card = "1"
 alsa.card_name = "DigiHug USB Audio"
 alsa.long_card_name = "FiiO DigiHug USB Audio at usb-0000:11:00.3-2, full speed"
 alsa.driver_name = "snd_usb_audio"
 device.bus_path = "pci-0000:11:00.3-usb-0:2:1.1"
 sysfs.path = "/devices/pci0000:00/0000:00:07.1/0000:11:00.3/usb3/3-2/3-2:1.1/sound/card1"
 udev.id = "usb-FiiO_DigiHug_USB_Audio-01"
 device.bus = "usb"
 device.vendor.id = "1852"
 device.vendor.name = "GYROCOM C&C Co., LTD"
 device.product.id = "7022"
 device.product.name = "DigiHug USB Audio"
 device.serial = "FiiO_DigiHug_USB_Audio"
 device.string = "1"
 module-udev-detect.discovered = "1"
 device.icon_name = "audio-card-usb"
 Formate:
 pcm

Quelle #1
 Status: RUNNING
 Name: alsa_input.pci-0000_12_00.3.analog-stereo
 Beschreibung: HD-Audio Generic Analog Stereo
 Treiber: module-alsa-card.c
 Abtastwert-Angabe: s16le 2ch 44100Hz
 Kanalzuordnung: front-left,front-right
 Besitzer-Modul: 8
 Stumm: nein
 Lautstärke: front-left: 6554 / 10% / -60,00 dB, front-right: 6554 / 10% / -60,00 dB
 Verteilung 0,00
 Basis-Lautstärke: 6554 / 10% / -60,00 dB
 Ziel-Monitor: k. A.
 Latenz: 30 usec, eingestellt 40000 usec
 Flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY 
 Eigenschaften:
 alsa.resolution_bits = "16"
 device.api = "alsa"
 device.class = "sound"
 alsa.class = "generic"
 alsa.subclass = "generic-mix"
 alsa.name = "ALC1220 Analog"
 alsa.id = "ALC1220 Analog"
 alsa.subdevice = "0"
 alsa.subdevice_name = "subdevice #0"
 alsa.device = "0"
 alsa.card = "2"
 alsa.card_name = "HD-Audio Generic"
 alsa.long_card_name = "HD-Audio Generic at 0xfd900000 irq 331"
 alsa.driver_name = "snd_hda_intel"
 device.bus_path = "pci-0000:12:00.3"
 sysfs.path = "/devices/pci0000:00/0000:00:08.1/0000:12:00.3/sound/card2"
 device.bus = "pci"
 device.vendor.id = "1022"
 device.vendor.name = "Advanced Micro Devices, Inc. [AMD]"
 device.product.id = "1457"
 device.string = "front:2"
 device.buffering.buffer_size = "65536"
 device.buffering.fragment_size = "32768"
 device.access_mode = "mmap+timer"
 device.profile.name = "analog-stereo"
 device.profile.description = "Analog Stereo"
 device.description = "HD-Audio Generic Analog Stereo"
 alsa.mixer_name = "Realtek ALC1220"
 alsa.components = "HDA:10ec1220,18491220,00100003"
 module-udev-detect.discovered = "1"
 device.icon_name = "audio-card-pci"
 Ports:
 analog-input-front-mic: Vorderes Mikrofon (priority: 8500, not available)
 analog-input-rear-mic: Rückwärtiges Mikrofon (priority: 8200, not available)
 analog-input-linein: Eingang (priority: 8100, available)
 Aktiver Port: analog-input-linein
 Formate:
 pcm


pactl list sinks
Ziel #0
 Status: RUNNING
 Name: alsa_output.usb-FiiO_DigiHug_USB_Audio-01.analog-stereo
 Beschreibung: DigiHug USB Audio Analog Stereo
 Treiber: module-alsa-card.c
 Abtastwert-Angabe: s16le 2ch 44100Hz
 Kanalzuordnung: front-left,front-right
 Besitzer-Modul: 7
 Stumm: nein
 Lautstärke: front-left: 65536 / 100% / 0,00 dB, front-right: 65536 / 100% / 0,00 dB
 Verteilung 0,00
 Basis-Lautstärke: 65536 / 100% / 0,00 dB
 Quellen-Monitor: alsa_output.usb-FiiO_DigiHug_USB_Audio-01.analog-stereo.monitor
 Latenz: 46296 usec, eingestellt 40000 usec
 Flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY 
 Eigenschaften:
 alsa.resolution_bits = "16"
 device.api = "alsa"
 device.class = "sound"
 alsa.class = "generic"
 alsa.subclass = "generic-mix"
 alsa.name = "USB Audio"
 alsa.id = "USB Audio"
 alsa.subdevice = "0"
 alsa.subdevice_name = "subdevice #0"
 alsa.device = "0"
 alsa.card = "1"
 alsa.card_name = "DigiHug USB Audio"
 alsa.long_card_name = "FiiO DigiHug USB Audio at usb-0000:11:00.3-2, full speed"
 alsa.driver_name = "snd_usb_audio"
 device.bus_path = "pci-0000:11:00.3-usb-0:2:1.1"
 sysfs.path = "/devices/pci0000:00/0000:00:07.1/0000:11:00.3/usb3/3-2/3-2:1.1/sound/card1"
 udev.id = "usb-FiiO_DigiHug_USB_Audio-01"
 device.bus = "usb"
 device.vendor.id = "1852"
 device.vendor.name = "GYROCOM C&C Co., LTD"
 device.product.id = "7022"
 device.product.name = "DigiHug USB Audio"
 device.serial = "FiiO_DigiHug_USB_Audio"
 device.string = "front:1"
 device.buffering.buffer_size = "352800"
 device.buffering.fragment_size = "176400"
 device.access_mode = "mmap+timer"
 device.profile.name = "analog-stereo"
 device.profile.description = "Analog Stereo"
 device.description = "DigiHug USB Audio Analog Stereo"
 alsa.mixer_name = "USB Mixer"
 alsa.components = "USB1852:7022"
 module-udev-detect.discovered = "1"
 device.icon_name = "audio-card-usb"
 Ports:
 analog-output: Analoge Ausgabe (priority: 9900)
 Aktiver Port: analog-output
 Formate:
 pcm


My basic audio setup:



Inputs:



  • audio coming from second monitor into computer line-in

  • all other audio is coming from the system / applications / music

Output:



  • USB-DAC/AMP which my headphone is connected to





sound kubuntu pulseaudio alsa







share|improve this question













I tried to get audio from my second monitor into Kubuntu through the line-in stereo jack which is now basically working after fiddling with alsamixer (un-mute Line & getting volume settings right) and adding load-module module-loopback to my /etc/pulse/default.pa



My current and biggest problem with this setup is the crackling sound / noise I get while playing audio - even after adjusting the line-in volume to ~5% (everything above that is just painful) and increasing volume on my external amplifier. (Under Windows 10 I have no crackling / sound problems with this setup even with line-in volume of 100%)



What I've tried so far:



1) Having load-module module-udev-detect tsched=0 (adding the tsched=0)
in /etc/pulse/default.pa for deactivating timer-based scheduling in PulseAudio which helped other people with crackling sound.



2) Combining 1) with modifications in /etc/pulse/daemon.conf for setting the default fragment number and buffer size in PulseAudio (like here: https://wiki.archlinux.org/index.php/PulseAudio/Troubleshooting#Static_noise_when_using_headphones)



3) Explicitly writing the loopback source & sink with its rate and channels:



load-module module-loopback source=alsa_input.pci-0000_12_00.3.analog-stereo sink=alsa_output.usb-FiiO_DigiHug_USB_Audio-01.analog-stereo rate=44100 channels=2


And 4) modifying /etc/modprobe.d/alsa-base.conf with options snd-hda-intel position_fix=1 or options snd-hda-intel position_fix=2 which was suggested here: https://wiki.ubuntu.com/Audio/PositionReporting



My system:



  • Kubuntu 17.10, 64 Bit

  • Kernel-Version 4.13.0-36-generic

  • AMD Ryzen 7 1700X CPU

  • 16 GB RAM

  • ASRock X370 Taichi motherboard

  • Nvidia GTX 1070 GPU

lspci -nnk | grep -i audio -A2
0e:00.1 Audio device [0403]: NVIDIA Corporation GP104 High Definition Audio Controller [10de:10f0] (rev a1)
 Subsystem: CardExpert Technology GP104 High Definition Audio Controller [10b0:1b81]
 Kernel driver in use: snd_hda_intel
 Kernel modules: snd_hda_intel
--
12:00.3 Audio device [0403]: Advanced Micro Devices, Inc. [AMD] Device [1022:1457]
 Subsystem: ASRock Incorporation Device [1849:1220]
 Kernel driver in use: snd_hda_intel


cat /proc/asound/cards
 0 [NVidia ]: HDA-Intel - HDA NVidia
 HDA NVidia at 0xfd080000 irq 329 
 1 [Audio ]: USB-Audio - DigiHug USB Audio 
 FiiO DigiHug USB Audio at usb-0000:11:00.3-2, full speed
 2 [Generic ]: HDA-Intel - HD-Audio Generic
 HD-Audio Generic at 0xfd900000 irq 331


pactl list sources
Quelle #0
 Status: RUNNING
 Name: alsa_output.usb-FiiO_DigiHug_USB_Audio-01.analog-stereo.monitor
 Beschreibung: Monitor of DigiHug USB Audio Analog Stereo
 Treiber: module-alsa-card.c
 Abtastwert-Angabe: s16le 2ch 44100Hz
 Kanalzuordnung: front-left,front-right
 Besitzer-Modul: 7
 Stumm: ja
 Lautstärke: front-left: 65536 / 100% / 0,00 dB, front-right: 65536 / 100% / 0,00 dB
 Verteilung 0,00
 Basis-Lautstärke: 65536 / 100% / 0,00 dB
 Ziel-Monitor: alsa_output.usb-FiiO_DigiHug_USB_Audio-01.analog-stereo
 Latenz: 0 usec, eingestellt 40000 usec
 Flags: DECIBEL_VOLUME LATENCY 
 Eigenschaften:
 device.description = "Monitor of DigiHug USB Audio Analog Stereo"
 device.class = "monitor"
 alsa.card = "1"
 alsa.card_name = "DigiHug USB Audio"
 alsa.long_card_name = "FiiO DigiHug USB Audio at usb-0000:11:00.3-2, full speed"
 alsa.driver_name = "snd_usb_audio"
 device.bus_path = "pci-0000:11:00.3-usb-0:2:1.1"
 sysfs.path = "/devices/pci0000:00/0000:00:07.1/0000:11:00.3/usb3/3-2/3-2:1.1/sound/card1"
 udev.id = "usb-FiiO_DigiHug_USB_Audio-01"
 device.bus = "usb"
 device.vendor.id = "1852"
 device.vendor.name = "GYROCOM C&C Co., LTD"
 device.product.id = "7022"
 device.product.name = "DigiHug USB Audio"
 device.serial = "FiiO_DigiHug_USB_Audio"
 device.string = "1"
 module-udev-detect.discovered = "1"
 device.icon_name = "audio-card-usb"
 Formate:
 pcm

Quelle #1
 Status: RUNNING
 Name: alsa_input.pci-0000_12_00.3.analog-stereo
 Beschreibung: HD-Audio Generic Analog Stereo
 Treiber: module-alsa-card.c
 Abtastwert-Angabe: s16le 2ch 44100Hz
 Kanalzuordnung: front-left,front-right
 Besitzer-Modul: 8
 Stumm: nein
 Lautstärke: front-left: 6554 / 10% / -60,00 dB, front-right: 6554 / 10% / -60,00 dB
 Verteilung 0,00
 Basis-Lautstärke: 6554 / 10% / -60,00 dB
 Ziel-Monitor: k. A.
 Latenz: 30 usec, eingestellt 40000 usec
 Flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY 
 Eigenschaften:
 alsa.resolution_bits = "16"
 device.api = "alsa"
 device.class = "sound"
 alsa.class = "generic"
 alsa.subclass = "generic-mix"
 alsa.name = "ALC1220 Analog"
 alsa.id = "ALC1220 Analog"
 alsa.subdevice = "0"
 alsa.subdevice_name = "subdevice #0"
 alsa.device = "0"
 alsa.card = "2"
 alsa.card_name = "HD-Audio Generic"
 alsa.long_card_name = "HD-Audio Generic at 0xfd900000 irq 331"
 alsa.driver_name = "snd_hda_intel"
 device.bus_path = "pci-0000:12:00.3"
 sysfs.path = "/devices/pci0000:00/0000:00:08.1/0000:12:00.3/sound/card2"
 device.bus = "pci"
 device.vendor.id = "1022"
 device.vendor.name = "Advanced Micro Devices, Inc. [AMD]"
 device.product.id = "1457"
 device.string = "front:2"
 device.buffering.buffer_size = "65536"
 device.buffering.fragment_size = "32768"
 device.access_mode = "mmap+timer"
 device.profile.name = "analog-stereo"
 device.profile.description = "Analog Stereo"
 device.description = "HD-Audio Generic Analog Stereo"
 alsa.mixer_name = "Realtek ALC1220"
 alsa.components = "HDA:10ec1220,18491220,00100003"
 module-udev-detect.discovered = "1"
 device.icon_name = "audio-card-pci"
 Ports:
 analog-input-front-mic: Vorderes Mikrofon (priority: 8500, not available)
 analog-input-rear-mic: Rückwärtiges Mikrofon (priority: 8200, not available)
 analog-input-linein: Eingang (priority: 8100, available)
 Aktiver Port: analog-input-linein
 Formate:
 pcm


pactl list sinks
Ziel #0
 Status: RUNNING
 Name: alsa_output.usb-FiiO_DigiHug_USB_Audio-01.analog-stereo
 Beschreibung: DigiHug USB Audio Analog Stereo
 Treiber: module-alsa-card.c
 Abtastwert-Angabe: s16le 2ch 44100Hz
 Kanalzuordnung: front-left,front-right
 Besitzer-Modul: 7
 Stumm: nein
 Lautstärke: front-left: 65536 / 100% / 0,00 dB, front-right: 65536 / 100% / 0,00 dB
 Verteilung 0,00
 Basis-Lautstärke: 65536 / 100% / 0,00 dB
 Quellen-Monitor: alsa_output.usb-FiiO_DigiHug_USB_Audio-01.analog-stereo.monitor
 Latenz: 46296 usec, eingestellt 40000 usec
 Flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY 
 Eigenschaften:
 alsa.resolution_bits = "16"
 device.api = "alsa"
 device.class = "sound"
 alsa.class = "generic"
 alsa.subclass = "generic-mix"
 alsa.name = "USB Audio"
 alsa.id = "USB Audio"
 alsa.subdevice = "0"
 alsa.subdevice_name = "subdevice #0"
 alsa.device = "0"
 alsa.card = "1"
 alsa.card_name = "DigiHug USB Audio"
 alsa.long_card_name = "FiiO DigiHug USB Audio at usb-0000:11:00.3-2, full speed"
 alsa.driver_name = "snd_usb_audio"
 device.bus_path = "pci-0000:11:00.3-usb-0:2:1.1"
 sysfs.path = "/devices/pci0000:00/0000:00:07.1/0000:11:00.3/usb3/3-2/3-2:1.1/sound/card1"
 udev.id = "usb-FiiO_DigiHug_USB_Audio-01"
 device.bus = "usb"
 device.vendor.id = "1852"
 device.vendor.name = "GYROCOM C&C Co., LTD"
 device.product.id = "7022"
 device.product.name = "DigiHug USB Audio"
 device.serial = "FiiO_DigiHug_USB_Audio"
 device.string = "front:1"
 device.buffering.buffer_size = "352800"
 device.buffering.fragment_size = "176400"
 device.access_mode = "mmap+timer"
 device.profile.name = "analog-stereo"
 device.profile.description = "Analog Stereo"
 device.description = "DigiHug USB Audio Analog Stereo"
 alsa.mixer_name = "USB Mixer"
 alsa.components = "USB1852:7022"
 module-udev-detect.discovered = "1"
 device.icon_name = "audio-card-usb"
 Ports:
 analog-output: Analoge Ausgabe (priority: 9900)
 Aktiver Port: analog-output
 Formate:
 pcm


My basic audio setup:



Inputs:



  • audio coming from second monitor into computer line-in

  • all other audio is coming from the system / applications / music

Output:



  • USB-DAC/AMP which my headphone is connected to





sound kubuntu pulseaudio alsa




sound kubuntu pulseaudio alsa






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked Mar 13 at 16:12









Vorkosik

11




11











  • What kernel are you running? I had a similar problem a while ago with a Z97 motherboard, and updating the kernel fixed it for me (at the time the Z97 was a new board/chipset). Perhaps try upgrading to the 4.15 kernel?
    – Vanessa Deagan
    Mar 13 at 17:38










  • At the moment I'm using 4.13.0-36 (generic, newest from the standard repo). I'm not that versed in Linux, but from what I gathered upgrading to a mainline kernel is kind of risky or rather 'advanced stuff' and can probably excavate/generate new problems? My motherboard is not that new (first Ryzen-generation) so I'd hope any normal fixes should already be included in the current kernel. But nevertheless I thank you for the suggestion! :)
    – Vorkosik
    Mar 14 at 12:30










  • Run in terminal alsamixer, hit f5 to select all controls and mute Mic Boost (+20db) if enabled.
    – Michal Przybylowicz
    Mar 14 at 22:09










  • Thanks for the suggestion - I already did that first whilst trying to get the line-in to work. Currently I have all boosts (2x Mic Boosts and 1x Line Boost) at '0' (no mute-option there) and a setting named Capture at 5 (the aforementioned 5% volume). In fact I tried muting all options not related to line-in but no constellation got rid of the problem.
    – Vorkosik
    Mar 15 at 0:12
















  • What kernel are you running? I had a similar problem a while ago with a Z97 motherboard, and updating the kernel fixed it for me (at the time the Z97 was a new board/chipset). Perhaps try upgrading to the 4.15 kernel?
    – Vanessa Deagan
    Mar 13 at 17:38










  • At the moment I'm using 4.13.0-36 (generic, newest from the standard repo). I'm not that versed in Linux, but from what I gathered upgrading to a mainline kernel is kind of risky or rather 'advanced stuff' and can probably excavate/generate new problems? My motherboard is not that new (first Ryzen-generation) so I'd hope any normal fixes should already be included in the current kernel. But nevertheless I thank you for the suggestion! :)
    – Vorkosik
    Mar 14 at 12:30










  • Run in terminal alsamixer, hit f5 to select all controls and mute Mic Boost (+20db) if enabled.
    – Michal Przybylowicz
    Mar 14 at 22:09










  • Thanks for the suggestion - I already did that first whilst trying to get the line-in to work. Currently I have all boosts (2x Mic Boosts and 1x Line Boost) at '0' (no mute-option there) and a setting named Capture at 5 (the aforementioned 5% volume). In fact I tried muting all options not related to line-in but no constellation got rid of the problem.
    – Vorkosik
    Mar 15 at 0:12















What kernel are you running? I had a similar problem a while ago with a Z97 motherboard, and updating the kernel fixed it for me (at the time the Z97 was a new board/chipset). Perhaps try upgrading to the 4.15 kernel?
– Vanessa Deagan
Mar 13 at 17:38




What kernel are you running? I had a similar problem a while ago with a Z97 motherboard, and updating the kernel fixed it for me (at the time the Z97 was a new board/chipset). Perhaps try upgrading to the 4.15 kernel?
– Vanessa Deagan
Mar 13 at 17:38












At the moment I'm using 4.13.0-36 (generic, newest from the standard repo). I'm not that versed in Linux, but from what I gathered upgrading to a mainline kernel is kind of risky or rather 'advanced stuff' and can probably excavate/generate new problems? My motherboard is not that new (first Ryzen-generation) so I'd hope any normal fixes should already be included in the current kernel. But nevertheless I thank you for the suggestion! :)
– Vorkosik
Mar 14 at 12:30




At the moment I'm using 4.13.0-36 (generic, newest from the standard repo). I'm not that versed in Linux, but from what I gathered upgrading to a mainline kernel is kind of risky or rather 'advanced stuff' and can probably excavate/generate new problems? My motherboard is not that new (first Ryzen-generation) so I'd hope any normal fixes should already be included in the current kernel. But nevertheless I thank you for the suggestion! :)
– Vorkosik
Mar 14 at 12:30












Run in terminal alsamixer, hit f5 to select all controls and mute Mic Boost (+20db) if enabled.
– Michal Przybylowicz
Mar 14 at 22:09




Run in terminal alsamixer, hit f5 to select all controls and mute Mic Boost (+20db) if enabled.
– Michal Przybylowicz
Mar 14 at 22:09












Thanks for the suggestion - I already did that first whilst trying to get the line-in to work. Currently I have all boosts (2x Mic Boosts and 1x Line Boost) at '0' (no mute-option there) and a setting named Capture at 5 (the aforementioned 5% volume). In fact I tried muting all options not related to line-in but no constellation got rid of the problem.
– Vorkosik
Mar 15 at 0:12




Thanks for the suggestion - I already did that first whilst trying to get the line-in to work. Currently I have all boosts (2x Mic Boosts and 1x Line Boost) at '0' (no mute-option there) and a setting named Capture at 5 (the aforementioned 5% volume). In fact I tried muting all options not related to line-in but no constellation got rid of the problem.
– Vorkosik
Mar 15 at 0:12















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How to enroll fingerprints to Ubuntu 17.10 with VFS491

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Clash Royale CLAN TAG #URR8PPP up vote 1 down vote favorite I decided to switch from Windows to Ubuntu 17.10, I meet it like 8 years ago and I didn't decided to switch until now (haha). Well, my actual device is an HP Probook 4540s with a Validity fingerprint sensor (VFS491). The fingerprint sensor worked fine on Windows but I can't get it to work in Ubuntu. The device is recognized as 138a:003d but is not detected as a fingerprint scanner by some apps like Fingerprint GUI. I want to use the fingerprint scanner to log in into my user account in Ubuntu but it doesn't supports fingerprints without special software and the drivers of the fingerprint scanner are available for Windows but not for any Linux distribution. I found something on GitHub (https://github.com/eekpie/libfprint) about the integration of the VFS491 in libfprint and I think it can help but I don't know what to do with it, so that's why I need the help of the community to do it since I am...
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