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

[Steve Underwood]

VAD == voice activity detect

Steve

Alberto Fernandez wrote:

>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 ?
>>>      
>>>