portaudio broken/ not sees device

Audacity Help Forum GNU/Linux
1

Firstly, I greatly appreciate all of your work, folkx. Thank you!

Now, coming to terms.

My setup: AMD-64, Terratec DMX XFire cs46xx, Debian Buster, stock Audacity v2.2.2 & libportaudio install

Observation: Audacity not see cs46xx devices (only onboard USB sound & vup/ downmix devices).
But ALSA tools & Ardour see, and they are able to capture/ output sound.
The error messg a got when starting audacity was something like in pa_alsa_linux.c function “set_period_size_near(…”. (cs46xx supports period_size 512 only at max).

After weeks over weeks of troubleshooting I got the impression that the underlying portaudio lib may be blamed for this error. So, I began swapping the portaudio lib against older versions a several times.

These are my findings, all with Audacity from Debian Buster repository v2.2.2:

  • portaudio stock version from Debian Buster => not works, Audacity not see devices of cs46xx (orig ticket issue)
  • portaudio2_19+svn2014XXX (in Debian Jessie?) => Nope, same as above
  • portaudio2_19+svn2011XXX (in Debian Wheezy/ Ubuntu?) => Ok, Audacity can record & play!

Seems, something has broken on the way from portaudio svn2011XXX up to => 2014XXX…

Hope, this helps any user in dispair as I was. And maybe, you developers manage to correct this issue in future versions of portaudio.

Thank you for your attention, and keep up your good work!
Cu

2

Perhaps you could report the problem to Portaudio: PortAudio - an Open-Source Cross-Platform Audio API

3

Could you try and get the exact error message. I’m not finding anything helpful on Google.

Are you able to build a C++ app from the source code?

4

https://github.com/PortAudio/portaudio/issues/524

5

@steve: thank you for your quick answer.

Are you able to build a C++ app from the source code?

Well, building software is not my daily cup of tea, so to say. :unamused: But I did compile & build, a several times. (First, I would need a running build environment…)

6

I was thinking that you could temporarily remove any portaudio “dev” packages that you may (or may not) have installed, and build Audacity from the source code (which includes portaudio).

I posted some recent build instructions here (pinned near the top): Compiling Audacity - Audacity Forum
The steps include setting up a minimal build environment.