[Asterisk-Users] Sound quality tuning with VOIP/Grandstreams... echo, cut out, codecs, asterisk

[Alberto Fernandez]

VAD,

Voice Activity Detection

On Thu, 2005-01-27 at 21:16 -0500, Brian Dingman wrote:
> PCMU is g711 ULAW and PCMA is G711 ALAW. ALAW is more common in
> Europe. Not sure about VAD.
> 
> 
> On Thu, 27 Jan 2005 18:44:09 -0700, Kim Lux <lux at diesel-research.com> wrote:
> > 
> > Thanks for the tips.
> > 
> > The Grandstream doesn't have a G711 or uLaw option for codecs.  It has
> > PCMU, PCMA and iLBC. Are any of these related to G711 ?
> > 
> > Grandstreams have echo cancellation and it appears to be working after a
> > few seconds of conversation.
> > 
> > What is VAD ?
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