[Asterisk-Users] Why Asterisk can't cope with silence suppression?

Tom Samplonius tom.samplonius at gmail.com
Wed Feb 16 21:08:46 MST 2005


On Wed, 16 Feb 2005 17:42:02 +0100 (CET), Peter Svensson
<psvasterisk at psv.nu> wrote:
> Asterisk clocks outgoing rtp data to a device from the incoming rtp
> stream from the same device. This is a known limitation and there has been
> some talk about implementing an internal clocking system.
> 
> In addition, Asterisk should generate comfort noise when the rtp stream is
> quiet due to silence supression (which is signalled with a CN packet).
> Perhaps the new jitter buffer will be able to handle this?

  Can't the g729a IPP codec cope with VAD/silcence suppression?  I
think VAD is integral to g729a, and can't be disabled.

  I'm using the free g729 IPP codec and VAD *seems* to work.

> Peter

Tom



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