Looking to use Second Sound Card with ALSA and PA

Optimize your system for ultimate performance.

Moderators: khz, MattKingUSA

lasakro
Established Member
Posts: 10
Joined: Tue Mar 15, 2016 10:18 pm

Looking to use Second Sound Card with ALSA and PA

Postby lasakro » Tue Sep 04, 2018 5:00 am

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.

User avatar
bluebell
Established Member
Posts: 746
Joined: Sat Sep 15, 2012 11:44 am
Location: Saarland & Frankfurt, Germany

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

Postby bluebell » Tue Sep 04, 2018 11:54 am

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.

User avatar
khz
Established Member
Posts: 785
Joined: Thu Apr 17, 2008 6:29 am
Location: German

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

Postby khz » Tue Sep 04, 2018 2:27 pm

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
Established Member
Posts: 10
Joined: Tue Mar 15, 2016 10:18 pm

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

Postby lasakro » Tue Sep 04, 2018 10:49 pm

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.


Return to “System Tuning and Configuration”

Who is online

Users browsing this forum: No registered users and 1 guest