[linux-audio-user] Common linux audio layer

[Christian Henz]

On Wed, 5 Jan 2005 23:47:14 -0500, Kevin Ernste <kevinernste at gmail.com> wrote:
> > > In any case, the other reason I chimed in was to thank you for your
> > > work.  The newest version of the JACK video is especially well done
> > > and I think new users in particular will benefit.
> >
> > If your card doesn't support hardware mixing then just use dmix.  What's
> > the problem?
> 
> The problem:
> 
> 1. Played Chris's JACK video.  "dmix" is my "pcm.!default" in asoundrc
> and this works great, so mplayer does not block other ALSA/OSS audio.
> Other ALSA/OSS apps can still access the device.
> 
> 2. Now, when his video tutorial suggested I tried starting JACK to
> follow along.  It fails to connect for me whether I direct jackd to
> use to my "default", hw:0, or to my named dmix pcm directly.
> 
> One solution is to pre-connect the vdeo audio to JACK via a jackplug
> or "jacklaunch", but if the video is already playing, no dice.
> 

You can actually get jackd to work with dmix, you just have to use
matching ALSA parameters (default or plug:dmix or something device,
samplerate, buffersize etc) for jack and run in playback-only-mode


cheers,
Christian