Can I add sound card definitions?

Dithered42 · October 20, 2022, 10:54pm

I’m figuring out the Jackd settings for various audio interfaces I have around like my old Lexicon (actually Digitech) Alpha. I’d like to add these to the sound card drop-down menu of Zynthian so I don’t have to type in the details manually when switching. I assume there is a system file I can edit that has these definitions in it.

Where might that data be?

Screenshot 2022-10-20 18.34.03

le51 · October 21, 2022, 5:45am

Hi,

Can I add sound card definitions?

Yes !
It’s here:

github.com

zynthian/zynthian-webconf/blob/testing/lib/audio_config_handler.py

# -*- coding: utf-8 -*-
#********************************************************************
# ZYNTHIAN PROJECT: Zynthian Web Configurator
#
# Audio Configuration Handler
#
# Copyright (C) 2017 Fernando Moyano <jofemodo@zynthian.org>
#
#********************************************************************
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 2 of
# the License, or any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#

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Dithered42 · October 21, 2022, 1:35pm

Excellent! I will test these cards and add them to the Python file.

Baggypants · October 21, 2022, 1:59pm

If you put them in issues on Github they can be added for everyone to use.

Dithered42 · October 21, 2022, 2:09pm

Will do.

Dithered42 · October 21, 2022, 2:12pm

I assume this is the file in the release candidate. I’m not seeing that file structure in STABLE.

le51 · October 21, 2022, 2:16pm

No it’s in stable branch too:

github.com

zynthian/zynthian-webconf/blob/stable/lib/audio_config_handler.py

# -*- coding: utf-8 -*-
#********************************************************************
# ZYNTHIAN PROJECT: Zynthian Web Configurator
#
# Audio Configuration Handler
#
# Copyright (C) 2017 Fernando Moyano <jofemodo@zynthian.org>
#
#********************************************************************
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 2 of
# the License, or any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#

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Dithered42 · October 21, 2022, 3:43pm

Doh… Yeah, I see it.

Dithered42 · October 22, 2022, 12:46am

I’m testing some additional Interface settings on this Python page. The JACKD_OPTIONS settings are fairly easy to understand and setup but I don’t know how the input and output names are determined for some of the interfaces like the HiFiBerry for instance.

‘SOUNDCARD_MIXER’: ‘Digital Left,ADC Left,Digital Right,ADC Right,ADC Left Input,ADC Right Input’

Anybody know how I can find a list of inputs and outputs for a given audio interface or the names for them? Maybe these are just arbitrary names assigned to a list of I/O points?

le51 · October 22, 2022, 6:28am

You can use in a terminal (ssh or through webconf built in terminal) the alsamixer command.
It will show you the alvailable hardware controls (if any) in the Alsa sound system layer.

wyleu · October 22, 2022, 10:40am

They show up in the webconf audio settings, you select the ones you wish to appear in the GUI Audio levels section.

The following are for my zynthian with the Behringer 1820 attached…

Dithered42 · October 22, 2022, 8:57pm

Thanks for the info. I’ll see what i/o is shown for each card in the alsamixer and list those that make sense in the definitions for these interfaces.