[linux-audio-dev] Re: [Jackit-devel] Multiplexing 4 channels on SPDIF

[Alfons Adriaensen]

On Mon, Oct 30, 2006 at 10:07:06AM -0500, Lee Revell wrote:

> > Some ALSA plugin? Of course, doing it in JACK's ALSA backend is also
> > reasonably simple, but would require small changes in many places to
> > override samplerates, etc.
> 
> I don't think it even needs to be a plugin, just tell ALSA about the
> audio format.

How can you tell ALSA that an SPDIF input is 4 channels ?

> Where can the detailed specs be downloaded?

According to the Core Sound website this thing is still in development,
and the specs there are incomplete. 

What they want to do is trick  hardware 2-ch recorders into accepting
the 4-ch signal. So what is in reality 4 channels at 48 kHz will be
presented as 2 channels at 96 kHz.

 
-- 
FA

Lascia la spina, cogli la rosa.