[LAU] Zita-ajbridge ?

[Marc Lavallée]

Bonjour Fons.

Fons Adriaensen <fons at linuxaudio.org> a écrit :
> First of all, what are you trying to achieve ?

I don't want to use "depth down-sampled" channels with ambdec.

> Zita-j2a is normally used to add a playback alsa device to Jack.
> For example, if you use Jack with the internal soundcard, then
> starting zita-j2a with the USB card will add the outputs of the
> USB card to jack, you can then play via both cards at the same time.

As I wrote, zita-j2a stays silent when using it as you explained.

> As said, Jack is *always* using floating point. 

Excellent!

But when running jackd with my 16bit USB module, Mplayer is converting
its output to 16bit. When running Jack with a 24bit sound card or the
aloop device, Mplayer's output is floatle (as expected), even when
forcing Jack to run in 16bit with the "--short" option.

Another problem: when starting Jack with a 2 channels sound card,
Mplayer can't output more than 2 channels. 

So I suppose that Mplayer is misbehaving.

> It will convert the playback channels to whatever the sound card can
> handle.

So far, no sound is coming out of zita-j2a.
Here's how I started it:
zita-j2a -v -d hw:2 -c 8
playback :
  nchan  : 8
  fsamp  : 48000
  fsize  : 256
  nfrag  : 2
  format : S16_LE
capture  : not enabled
Starting synchronisation.

Tchao
--
Marc