[pulseaudio-discuss] Odd app behavior with PULSE_PROP="filter.want=echo-cancel"

Georg Chini georg at chini.tk
Tue Feb 13 15:21:11 UTC 2018

On 12.02.2018 20:15, Raman Gupta wrote:
> When I start Zoiper with PULSE_PROP="filter.want=echo-cancel", it
> demonstrates some odd behavior. It ends up creating many Echo-Cancel
> Sink and Source streams, and I am unable to select my USB headset as
> the source of any of them.
> I think, based on the discussion around a recent crasher bug I
> reported, Zoiper is trying to be too clever, without being clever
> enough, and is actually trying to open up various streams to all of
> the Pulse Input and Output devices. Is this just a Zoiper issue, or is
> there something I can do on the Pulse side to solve this?
> I think one option is load the echo-cancellation module once in
> /etc/pulse/default.pa and then use the volume control to manually hook
> up Zoiper to that module.
> Regards,
> Raman
> _______________________________________________

can't you tell zoiper which devices to use? And can you provide
a log (beginning when you start zoiper) so that we can see what
actually happens?


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