Re: [LAU] HDSP 9632 - Just pcm0p !?

On Mon, Oct 26, 2009 at 5:32 PM, Paul Davis <paul@email-addr-hiddenwrote:

> On Mon, Oct 26, 2009 at 11:30 AM, Klaus Schulz <kls.schlz@email-addr-hidden>
> wrote:
> > THX Giso.
> >
> > I already looked into the .asoundrc Wiki. I couldn't really make sense
> of
> > it.
> >
> > I 'll checkout Jack. I just wanted to avoid another layer in the chain. I
> > also didn't want to mix things
> > on the PC side. I didn't expect difficulties to send three stereo streams
> > straight to the device mixer.
>
> then you haven't understood ALSA at all.
>
>
That's possible. (Don't expect me I to startup discussions about quality of
Alsa documentation etc., Alsa I regard as designer territory - I am just a
poor user.)

> if you want multiple apps to send independent streams to a device, you
> have 3 choices:
>
> 1) use dmix
> 2) use asoundrc to set up pseudo-devices mapped to distinct
> channels, and have each app use a different pseudo-device
> 3) use a sound server that knows what its doing (JACK being one example)
>
>
Paul. I know all that. I am just lacking the knowledge of how to link the
output stream to a dedicated channel.

> if you want a single app to send independent streams to a device, then
> the app has to know what its doing.
>
> its not any simpler, or more complex, than that.
>

Pretty simple - You IMO still did not answer the question. How about an
example for 2) ?

For now the only way to sent a stream to e.g. the out3/4 of HDSPmixer
without going for 1)2)3) has been a multichannel wav.

Cheers

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Received on Tue Oct 27 00:15:02 2009