[pulseaudio-discuss] A few questions

Justin Tulloss jmtulloss at gmail.com
Tue Jun 26 17:50:21 PDT 2007

I was just curious if this mailing list is still active. My company is
looking to make a decision about using pulseaudio within the next 24 hours,
and we need answers to these questions before we can continue. I can, of
course, take the time to look through the code, but it seems to me that the
questions would be trivial to somebody who had worked extensively with


Justin T.

On 6/26/07, Justin Tulloss <jmtulloss at gmail.com> wrote:
> Hello,
> I'm just getting into PulseAudio and I'm looking forward to using it for
> some challenging projects. I do have a few questions however:
> 1. Is good floating point performance necessary? I saw that some of your
> algorithms do rely on floating point, but I didn't get far enough into it to
> see whether it was necessary for basic PCM routing.
> 2. How do direct plugin sources/sinks work? For example, the gstreamer
> plugin communicates directly with pulse. Therefore it doesn't show up as a
> source in the manager. Is there a way to get a handle to that source? For
> instance, if I had 2 sinks (A and B) and I wanted to say that all alsa sound
> (from the alsa plugin) should go to sink A where all gstreamer audio should
> go to sink B, how would I do that? That's a contrived example, but I am
> looking for that kind of flexibility.
> 3. Is anybody actively working on a D-Bus control for this? Seems like it
> would be easy enough.
> 4. How do you define policy for HAL events? I don't see an obvious way of
> saying "now that this sink is connected, all audio goes to it and the old
> sink will be turned off"
> Thanks a lot for your help! I'm really excited to really get into using
> this.
> Justin
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