audio interface for Guix

audio interface for Guix

[gfp]

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Hi,

> Hi! I'm using Native Instruments Komplete Audio 2 on my GNU Guix System, it didn't need any additional configuration, I just plugged it in. I'm using pipewire if it makes any difference.

I bought a Komplete Audio 1 interface,
but now:

they offer only a window or Mac support software.

How did you manage to use it in Guix?
Which package do you use?
obs, audacity, ardour ...?

I installed pipewire, but
when opening obs, it didn't give this option of pipewire.
There is alsa and pulseaudio.
How can I change this?

Did you put something in your config.scm?

thanks for help

Gottfried



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Re: audio interface for Guix

[Felix Lechner via]

Hi Gottfried,

On Fri, Nov 29 2024, gfp wrote:

> How did you manage to use it in Guix?

Lesik will give you a better answer, although "the Komplete Audio 1 is
class-compliant." [1]

You can investigate a lot already with 'lsusb' and then with 'alsamixer"
(from alsa-utils).  Alsamixer is a console program that uses Ncurses for
graphics and has some odd keybindings [2] but you may just have to
unmute it.

My understaning is all modern sound daemons such as PulseAudio or
Pipewire are built on top of ALSA, which stands for Advanced Linux Sound
Architecture.

Please send the songs you will records with your new system!

Kind regards
Felix

[1] https://linuxmusicians.com/viewtopic.php?p=153946&sid=6e8deb756edcb3a4679d7e0a6a6ebd47#p153946
[2] https://wiki.archlinux.org/title/Advanced_Linux_Sound_Architecture#Unmute_with_alsamixer

Re: audio interface for Guix

[gfp]

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Hi Felix and Lesik,

> You can investigate a lot already with 'lsusb' and then with 'alsamixer"
>> (from alsa-utils).  Alsamixer is a console program that uses Ncurses for
>> graphics and has some odd keybindings [2] but you may just have to
>> unmute it.

If I connect my Komplete Audio 1 with usb to my laptop:
I get this message:

gfp@Tuxedo ~$ lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 002: ID 2109:2812 VIA Labs, Inc. VL812 Hub
Bus 003 Device 003: ID 046d:c31c Logitech, Inc. Keyboard K120
Bus 003 Device 004: ID 046d:c077 Logitech, Inc. Mouse
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 004 Device 002: ID 2109:0812 VIA Labs, Inc. VL812 Hub

gfp@Tuxedo ~$ alsamixer
ALSA lib dlmisc.c:339:(snd_dlobj_cache_get0) Cannot open shared library 
/gnu/store/09z1wim457nxknh5yf2bwnwg84w3w0zq-alsa-plugins-1.2.2-pulseaudio/lib/alsa-lib/libasound_module_ctl_pulse.so 
(/gnu/store/ln6hxqjvz6m9gdd9s97pivlqck7hzs99-glibc-2.35/lib/libc.so.6: 
version `GLIBC_2.38' not found (required by 
/gnu/store/50d4baa8q111wbbq00jsmc3g76159lcz-pulseaudio-16.1/lib/pulseaudio/libpulsecommon-16.1.so))
cannot open mixer: Kein passendes Gerät bzw. keine passende Adresse 
gefunden (No suitable device or address found).

That is without installing pipewire.
I installed pipewire etc, but after an sudo guix system reconfigure...
I had no sound at all. I lost what I had, and I didn't get pipewire.
So I had to change to an older generation to get rid of everything I had 
installed.

Approx. 2 years ago Csepp said: Guix home can´t be deleted if installed.
So I didn´t dare to install it.
Secondly I am not on that level to configure my system.

So I can´t use my audio interface at the moment.

Thanks for help

Gottfried



Am 29.11.24 um 18:41 schrieb Felix Lechner:
> Hi Gottfried,
> 
> On Fri, Nov 29 2024, gfp wrote:
> 
>> How did you manage to use it in Guix?
> 
> Lesik will give you a better answer, although "the Komplete Audio 1 is
> class-compliant." [1]
> 
> You can investigate a lot already with 'lsusb' and then with 'alsamixer"
> (from alsa-utils).  Alsamixer is a console program that uses Ncurses for
> graphics and has some odd keybindings [2] but you may just have to
> unmute it.
> 
> My understaning is all modern sound daemons such as PulseAudio or
> Pipewire are built on top of ALSA, which stands for Advanced Linux Sound
> Architecture.
> 
> Please send the songs you will records with your new system!
> 
> Kind regards
> Felix
> 
> [1] https://linuxmusicians.com/viewtopic.php?p=153946&sid=6e8deb756edcb3a4679d7e0a6a6ebd47#p153946
> [2] https://wiki.archlinux.org/title/Advanced_Linux_Sound_Architecture#Unmute_with_alsamixer

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Re: audio interface for Guix

[Aleksej via]

The fact that your interface is not listed in lsusb is quite strange. For the experiment, I even tried booting from the Guix installation image, and my interface was listed in lsusb. Are you sure your interface is working? Could you try it with another USB port, PC, or distribution?

Re: audio interface for Guix

[gfp]

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Am 01.12.24 um 11:50 schrieb Aleksej:
> The fact that your interface is not listed in lsusb is quite strange. 
> For the experiment, I even tried booting from the Guix installation 
> image, and my interface was listed in lsusb. Are you sure your interface 
> is working? Could you try it with another USB port, PC, or distribution?

Hi Aleksei,

now it is listed in lsusb: Native Instruments Komplete Audio 1

but it doesn´t work either.

gfp@Tuxedo ~$ lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 006: ID 2109:2812 VIA Labs, Inc. VL812 Hub
Bus 003 Device 007: ID 046d:c31c Logitech, Inc. Keyboard K120
Bus 003 Device 008: ID 046d:c077 Logitech, Inc. Mouse
Bus 003 Device 009: ID 17cc:1830 Native Instruments Komplete Audio 1
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 004 Device 003: ID 2109:0812 VIA Labs, Inc. VL812 Hub

thanks

Gottfried

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Re: audio interface for Guix

[gfp]

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Hi Aleksej,

here is the logfile of OBS Studio:
May be you can get some information here.
-------------------------------------------------------------------------------------
15:50:39.995: Using EGL/X11
15:50:39.996: CPU Name: 11th Gen Intel(R) Core(TM) i7-11390H @ 3.40GHz
15:50:39.996: CPU Speed: 399.997MHz
15:50:39.998: Physical Cores: 4, Logical Cores: 8
15:50:39.998: Physical Memory: 64088MB Total, 58494MB Free
15:50:39.998: Kernel Version: Linux 6.11.10-gnu
15:50:39.998: Distribution: "Guix System" Unknown
15:50:39.999: Desktop Environment: MATE (mate)
15:50:39.999: Session Type: x11
15:50:39.999: Window System: X11.0, Vendor: The X.Org Foundation, 
Version: 1.21.1
15:50:40.005: Qt Version: 6.6.3 (runtime), 6.6.3 (compiled)
15:50:40.005: Portable mode: false
15:50:40.179: OBS 30.1.2 (linux)
15:50:40.179: ---------------------------------
15:50:40.182: ---------------------------------
15:50:40.182: audio settings reset:
15:50:40.182: 	samples per sec: 48000
15:50:40.182: 	speakers:        2
15:50:40.182: 	max buffering:   960 milliseconds
15:50:40.182: 	buffering type:  dynamically increasing
15:50:40.221: ---------------------------------
15:50:40.221: Initializing OpenGL...
15:50:40.565: Loading up OpenGL on adapter Intel Mesa Intel(R) Xe 
Graphics (TGL GT2)
15:50:40.565: OpenGL loaded successfully, version 4.6 (Core Profile) 
Mesa 24.0.4, shading language 4.60
15:50:40.846: ---------------------------------
15:50:40.847: video settings reset:
15:50:40.847: 	base resolution:   1920x1080
15:50:40.847: 	output resolution: 640x360
15:50:40.847: 	downscale filter:  Bicubic
15:50:40.847: 	fps:               30/1
15:50:40.847: 	format:            NV12
15:50:40.847: 	YUV mode:          Rec. 709/Partial
15:50:40.847: NV12 texture support enabled
15:50:40.848: P010 texture support not available
15:50:40.868: Audio monitoring device:
15:50:40.868: 	name: Komplete Audio 1 Analog Stereo
15:50:40.868: 	id: 
alsa_output.usb-Native_Instruments_Komplete_Audio_1_0000B379-00.analog-stereo
15:50:40.868: ---------------------------------
15:50:40.912: Failed to load 'en-US' text for module: 'decklink-captions.so'
15:50:40.959: Failed to load 'en-US' text for module: 
'decklink-output-ui.so'
15:50:40.993: A DeckLink iterator could not be created.  The DeckLink 
drivers may not be installed
15:50:40.993: Failed to initialize module 'decklink.so'
15:50:42.055: [pipewire] No captures available
15:50:42.159: v4l2loopback not installed, virtual camera disabled
15:50:42.324: VAAPI: Failed to initialize display in 
vaapi_device_h264_supported
15:50:42.324: FFmpeg VAAPI H264 encoding not supported
15:50:42.325: VAAPI: Failed to initialize display in 
vaapi_device_av1_supported
15:50:42.325: FFmpeg VAAPI AV1 encoding not supported
15:50:42.326: VAAPI: Failed to initialize display in 
vaapi_device_hevc_supported
15:50:42.326: FFmpeg VAAPI HEVC encoding not supported
15:50:42.665: [obs-websocket] [obs_module_load] you can haz websockets 
(Version: 5.4.2 | RPC Version: 1)
15:50:42.665: [obs-websocket] [obs_module_load] Qt version 
(compile-time): 6.6.3 | Qt version (run-time): 6.6.3
15:50:42.665: [obs-websocket] [obs_module_load] Linked ASIO Version: 102800
15:50:42.701: [obs-websocket] [obs_module_load] Module loaded.
15:50:42.856: [vlc-video]: VLC 3.0.21 Vetinari found, VLC video source 
enabled
15:50:42.857: ---------------------------------
15:50:42.857:   Loaded Modules:
15:50:42.857:     vlc-video.so
15:50:42.857:     text-freetype2.so
15:50:42.857:     rtmp-services.so
15:50:42.857:     obs-x264.so
15:50:42.857:     obs-websocket.so
15:50:42.857:     obs-webrtc.so
15:50:42.857:     obs-vst.so
15:50:42.857:     obs-transitions.so
15:50:42.857:     obs-outputs.so
15:50:42.857:     obs-filters.so
15:50:42.857:     obs-ffmpeg.so
15:50:42.857:     linux-v4l2.so
15:50:42.858:     linux-pulseaudio.so
15:50:42.858:     linux-pipewire.so
15:50:42.858:     linux-capture.so
15:50:42.858:     linux-alsa.so
15:50:42.858:     image-source.so
15:50:42.858:     frontend-tools.so
15:50:42.858:     decklink-output-ui.so
15:50:42.858:     decklink-captions.so
15:50:42.858: ---------------------------------
15:50:42.858: ==== Startup complete 
===============================================
15:50:42.875: Switched to Preview/Program mode
15:50:42.875: ------------------------------------------------
15:50:42.979: All scene data cleared
15:50:42.979: ------------------------------------------------
15:50:42.999: pulse-input: Server name: 'pulseaudio 16.1'
15:50:43.000: pulse-input: Audio format: s32le, 44100 Hz, 2 channels
15:50:43.001: pulse-input: Started recording from 
'alsa_output.usb-Native_Instruments_Komplete_Audio_1_0000B379-00.analog-stereo.monitor'
15:50:43.003: [Loaded global audio device]: 'Desktop-Audio'
15:50:43.005: pulse-input: Server name: 'pulseaudio 16.1'
15:50:43.006: pulse-input: Audio format: s32le, 44100 Hz, 2 channels
15:50:43.006: pulse-input: Started recording from 
'alsa_output.usb-Native_Instruments_Komplete_Audio_1_0000B379-00.analog-stereo.monitor'
15:50:43.006: [Loaded global audio device]: 'Desktop-Audio 2'
15:50:43.008: pulse-input: Server name: 'pulseaudio 16.1'
15:50:43.009: pulse-input: Audio format: s32le, 44100 Hz, 2 channels
15:50:43.009: pulse-input: Started recording from 
'alsa_input.usb-Native_Instruments_Komplete_Audio_1_0000B379-00.analog-stereo'
15:50:43.010: [Loaded global audio device]: 'Mikrofon-/AUX-Audio'
15:50:43.014: pulse-input: Server name: 'pulseaudio 16.1'
15:50:43.015: pulse-input: Audio format: s32le, 44100 Hz, 2 channels
15:50:43.015: pulse-input: Started recording from 
'alsa_input.usb-Native_Instruments_Komplete_Audio_1_0000B379-00.analog-stereo'
15:50:43.016: [Loaded global audio device]: 'Mikrofon-/AUX-Audio 2'
15:50:43.029: alsa-input: PCM 'default' rate set to 44100
15:50:43.029: alsa-input: PCM 'default' channels set to 2
15:50:43.037: pulse-input: Server name: 'pulseaudio 16.1'
15:50:43.038: pulse-input: Audio format: s32le, 44100 Hz, 2 channels
15:50:43.039: pulse-input: Started recording from 
'alsa_input.usb-Native_Instruments_Komplete_Audio_1_0000B379-00.analog-stereo' 
(default)
15:50:43.045: alsa-input: PCM 'default' rate set to 44100
15:50:43.045: alsa-input: PCM 'default' channels set to 2
15:50:43.053: pulse-input: Server name: 'pulseaudio 16.1'
15:50:43.054: pulse-input: Audio format: s32le, 44100 Hz, 2 channels
15:50:43.054: pulse-input: Started recording from 
'alsa_input.usb-Native_Instruments_Komplete_Audio_1_0000B379-00.analog-stereo'
15:50:43.062: alsa-input: PCM 'default' rate set to 32000
15:50:43.062: alsa-input: PCM 'default' channels set to 2
15:50:43.081: Switched to scene 'Komplete Audio 1'
15:50:43.082: User switched Program to scene 'Lieder'
15:50:43.088: ------------------------------------------------
15:50:43.088: Loaded scenes:
15:50:43.088: - scene 'Szene':
15:50:43.088: - scene 'Lieder':
15:50:43.088:     - source: 'Audioaufnahmegerät (ALSA)' (alsa_input_capture)
15:50:43.088:     - source: 'Audioeingabeaufnahme (PulseAudio)' 
(pulse_input_capture)
15:50:43.088: - scene 'Komplete Audio 1':
15:50:43.088:     - source: 'Mikrofon-/AUX-Audio' (pulse_input_capture)
15:50:43.088:     - source: 'Desktop-Audio 2' (pulse_output_capture)
15:50:43.088: - scene 'Guix with voice':
15:50:43.088:     - source: 'Audioaufnahmegerät (ALSA) 2' 
(alsa_input_capture)
15:50:43.088:     - source: 'Audioeingabeaufnahme (PulseAudio) 2' 
(pulse_input_capture)
15:50:43.089: - scene 'Audiobox USB':
15:50:43.089:     - source: 'Audioaufnahmegerät (ALSA) 3' 
(alsa_input_capture)
15:50:43.089:     - source: 'Desktop-Audio' (pulse_output_capture)
15:50:43.089:     - source: 'Mikrofon-/AUX-Audio' (pulse_input_capture)
15:50:43.089:     - source: 'Audioaufnahmegerät (ALSA)' (alsa_input_capture)
15:50:43.089: ------------------------------------------------
15:50:43.555: adding 21 milliseconds of audio buffering, total audio 
buffering is now 21 milliseconds (source: Mikrofon-/AUX-Audio)
15:50:43.555:
15:51:23.526: ---------------------------------
15:51:23.526: [x264 encoder: 'simple_video_recording'] preset: veryfast
15:51:23.526: [x264 encoder: 'simple_video_recording'] profile: high
15:51:23.527: [x264 encoder: 'simple_video_recording'] settings:
15:51:23.527: 	rate_control: CRF
15:51:23.527: 	bitrate:      0
15:51:23.527: 	buffer size:  0
15:51:23.527: 	crf:          17
15:51:23.527: 	fps_num:      30
15:51:23.527: 	fps_den:      1
15:51:23.527: 	width:        640
15:51:23.527: 	height:       360
15:51:23.527: 	keyint:       250
15:51:23.527:
15:51:23.545: ---------------------------------
15:51:23.548: [FFmpeg aac encoder: 'simple_aac_recording0'] bitrate: 
192, channels: 2, channel_layout: stereo
15:51:23.548:
15:51:23.567: ==== Recording Start 
===============================================
15:51:23.567: [ffmpeg muxer: 'simple_file_output'] Writing file 
'/home/gfp/Desktop/Lieder aufnehmen/2024-12-01 15-51-23.mkv'...
15:51:33.523: [ffmpeg muxer: 'simple_file_output'] Output of file 
'/home/gfp/Desktop/Lieder aufnehmen/2024-12-01 15-51-23.mkv' stopped
15:51:33.523: Output 'simple_file_output': stopping
15:51:33.523: Output 'simple_file_output': Total frames output: 273
15:51:33.523: Output 'simple_file_output': Total drawn frames: 297 (298 
attempted)
15:51:33.523: Output 'simple_file_output': Number of lagged frames due 
to rendering lag/stalls: 1 (0.3%)
15:51:33.524: ==== Recording Stop 
================================================
15:51:33.543: Error uninhibiting: 
GDBus.Error:org.freedesktop.DBus.Error.UnknownObject: 
GDBus.Error:org.freedesktop.DBus.Error.UnknownObject: No such object 
path 
'/org/freedesktop/portal/desktop/request/1_68/obs_inhibit_portal1321847995'
15:56:17.571: adding 21 milliseconds of audio buffering, total audio 
buffering is now 42 milliseconds (source: Audioaufnahmegerät (ALSA) 3)
15:56:17.571:

-----------------------------------------------------------------------------------

Am 01.12.24 um 15:56 schrieb gfp:
> Am 01.12.24 um 11:50 schrieb Aleksej:
>> The fact that your interface is not listed in lsusb is quite strange. 
>> For the experiment, I even tried booting from the Guix installation 
>> image, and my interface was listed in lsusb. Are you sure your 
>> interface is working? Could you try it with another USB port, PC, or 
>> distribution?
> 
> Hi Aleksei,
> 
> now it is listed in lsusb: Native Instruments Komplete Audio 1
> 
> but it doesn´t work either.
> 
> gfp@Tuxedo ~$ lsusb
> Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
> Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
> Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
> Bus 003 Device 006: ID 2109:2812 VIA Labs, Inc. VL812 Hub
> Bus 003 Device 007: ID 046d:c31c Logitech, Inc. Keyboard K120
> Bus 003 Device 008: ID 046d:c077 Logitech, Inc. Mouse
> Bus 003 Device 009: ID 17cc:1830 Native Instruments Komplete Audio 1
> Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
> Bus 004 Device 003: ID 2109:0812 VIA Labs, Inc. VL812 Hub
> 
> thanks
> 
> Gottfried



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Re: audio interface for Guix

[gfp]

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Hi,
thanks for your thoughts.

1.
I don´t have "guix home"

so. should I include this in my config.scm:
> "(service home-pipewire-service-type)"

or > "(service pipewire-service-type)"
because "home-pipewire" is for "guix home" ?

2.
the package "pipewire-pulse" doesn´t exist in : guix packages list
That´s why I can´t install it.
Will this package be installed by : adding the sentence mentioned above 
(point 1.)?

At the moment my laptop with Guix SD in OBS recognizes the sound at 
least it moves the audiomixer sound level if I record something.
But after recording in playing the recorded stuff there is no sound at all.
The messages are: alsa didn´t find a device ...
At the moment everything bases on alsa.

3.
In the pipewire website it says, it is necessary to remove pulseaudio in 
order to get pipewire running. Also in the Arch Linux website.

This is a later question perhaps, first I have to get question 1. ready.

thanks for help
Gottfried



Am 29.11.24 um 20:11 schrieb lesikedelweiss:
> Hi! I have been using it with OBS and Ardour. For OBS, I think it uses 
> pipewire-pulse (but I'm not sure), and for Ardour, I use pw-jack. 
> Everything was working without any additional configuration. In my 
> config.scm, I have:
> 
> "(udev-rules-service 'pipewire-add-udev-rules pipewire)"
> 
> But I'm not sure if it's necessary (I found it in someone's config). 
> Also, I'm using guix home to install the pipewire and pipewire-pulse 
> services:
> 
> "(service home-pipewire-service-type)"
> 
> I've also used pavucontrol to set this interface as the default.
> 



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Re: audio interface for Guix - difference Guix and Guix home

[gfp]

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Am 29.11.24 um 22:44 schrieb Aleksej:
> I'm not sure if there is pipewire-service-type in guix, maybe you could 
> configure home pipewire service with guix-home-service-type? I think 
> that pipewire related things exist only as home services.


Hi,
thanks for your help

I don´t understand till now why some packages/service types can be 
installed in Guix, and some can only be installed in Guix home?

Gottfried

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