Re: Creating a "software speakerphone" in ALSA

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On Sun, 7 Dec 2008 20:57:09 +0100
Jan-Benedict Glaw <jbglaw@xxxxxxxxxx> wrote:

> On Sun, 2008-12-07 12:23:53 +0000, Jim Higson <jh@xxxxxxx> wrote:
> > I don't have a landline so I talk a lot on Skype using my USB headset. This 
> > is great, but sometimes I want to put it on speaker, like when I'm on hold 
> > at my bank for a long time.
> 
> So the basic point is that you'd like to have a switching matrix
> between physical inputs/outputs and logical streams.
> 
> I have a similar setup (a number of sound cards, plus I want to feed a
> RTP stream to the network), which I use with Pulseaudio. So Pulseaudio
> is the switching matrix, using ALSA for low-level device access. This
> works quite nice, allowing eg. volume control per virtual channel,
> interruption-free (and transparent for the application) move from one
> sound input/output device to another, ...
> 
> MfG, JBG
> 

I haven't used Pulseaudio; I think one will have to create a pseudo ALSA
device in Pulseaudio and point Skype to it.

Regards,
  Sergei.

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