Hi all and especially Farsight developers, checking on the <a href="http://farsight.freedesktop.org/wiki/Farsight2Todo">Farsight todo list</a> I see something is being cooked about CN generation. On Farsight sources I can see a basic handling of CN sending, but not that much about receiving it. As it appears CN generation in the receive side is the trickiest part, I wanted to know how it's planned to deal with it. In example, for g729 packets it's possible to receive only a SID frame and then nothing more until the next talkspurt: because of DTX it's not possible to give any direct relations between input packets and output uncompressed time length. RFC3389 also defines some ways to adjust the noise level before the next talkspurt but, again, DTX makes it hard to deal with CN by using a traditional GStreamer decoder. If nothing is already available, I was thinking about a generic support bin to be controlled from the speech codecs or depayloaders. The bin structure may be sketched with an audio source generating a coloured noise with the pole-only spectral description obtained from the silence encoder, connected togehter with the decoder to an input selector. The latter would be simply controlled from the depayloader (or decoder) when e.g. a SID/talkspurt start has been received. Are there any other/better ideas (being) implemented?