Acoustic echo cancellation

[Nicolas Dufresne]

Le mercredi 28 mai 2014 à 14:37 -0700, Puyol a écrit :
> i tried to change gstreamer proprietes to pulseaudio server in input and
> output
> and i used "pactl load-module module-echo-cancel aec_method=adrian" but i
> still listen to echo!! any one could help please
> thanks!!

Here's what Empathy [1] do (on both src and sink):

props = gst_structure_new ("props",
                           PA_PROP_MEDIA_ROLE, G_TYPE_STRING, "phone",
                           NULL);
gst_structure_set (props,
                   "filter.want", G_TYPE_STRING, "echo-cancel",
                   NULL);
g_object_set (element, "stream-properties", props, NULL);
gst_structure_free (props);


https://git.gnome.org/browse/empathy/tree/src/empathy-audio-utils.c#n32

cheers,
Nicolas
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