Looking to use Second Sound Card with ALSA and PA

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lasakro
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Looking to use Second Sound Card with ALSA and PA

Post by lasakro »

I'm using Claudia with the Cadence ALSA -> PulseAudio -> JACK (Plugin) on Ubuntu 18.04. Audio works fine to my Asus Zonar DX. Is there a way to configure the system to also output the same audio to my NVIDIA HDMI card? I think I need to look at the asoundrc file to help me accomplish this but the options might be beyond me. Any input would be helpful.
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bluebell
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Re: Looking to use Second Sound Card with ALSA and PA

Post by bluebell »

There are ALSA-based solutions, see https://alsa.opensrc.org/MultipleCards

There are JACK-based solutions as well like alsa_out, zita_j2a and jackd's audioadapter. They give you additional outputs in jackd that you can connect as you like. That's the more flexible solution since you can - for example - put an CALF rack with an EQ before that output.

If your internal card is hw:0 you can try when jackd is already running:

Code: Select all

jack_load -i "-dhw:0 -q0 -n2 -p128 -r48000" mynvidia audioadapter
You can use the soundcard's name as shown in "aplay -l" as well. Now you have additional outputs under "mynvidia". You can change that name to your taste.

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khz
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Re: Looking to use Second Sound Card with ALSA and PA

Post by khz »

. . . FZ - Does humor belongs in Music?
. . GNU/LINUX@AUDIO ~ /Wiki $ Howto.Info && GNU/Linux Debian installing >> Linux Audio Workstation LAW
  • I don't care about the freedom of speech because I have nothing to say.
lasakro
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Re: Looking to use Second Sound Card with ALSA and PA

Post by lasakro »

Thanks for the links guys. I don't need to have the adapter available in Claudia to wire up with a CALF host, already have that for my main output. This will just be a monitor and the volume can be fixed. Looking for an easy solution but with the ALSA > PA > JACK bridge I don't know which path to start down reading up on.
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