[pulseaudio-discuss] source to sink question.

Ng Oon-Ee ngoonee at gmail.com
Mon May 10 10:12:10 PDT 2010

On Mon, 2010-05-10 at 12:00 -0500, pl bossart wrote:
> >> > Is it possible route a source directly to a sink completely within PA
> >> > without affecting other sources?
> >>
> >> Check out module-loopback:
> >> http://www.pulseaudio.org/wiki/Modules#module-loopback
> >>
> > I do believe the latency for module-loopback is pretty bad though. For
> > listening this shouldn't be a problem, but I couldn't use it for
> > monitoring (that's what JACK is for, after all).
> the latency can be configured, there's a parameter for it. I do agree
> that module-loopback is probably not suitable for monitoring, but if
> you are going through a USB connection in the first place your latency
> isn't sub-ms either.
> - Pierre

In my case it was a combination of latencies, USB input,
module-loopback, and a BT headset. The last was probably the worst
cause, but I recall that module-loopback itself seemed to add quite a
bit of latency.

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