[asterisk-users] finding the right amd.conf settings

[Matt Riddell]

On 29/04/2009 9:06 p.m., Roi Stork wrote:
> Thanks very much.
>
> By the way, what exactly does silence threshold mean, how does it work,
> and what does the threshold value represent (bitrate? integer?)? The
> amd.conf and voip-info wiki doesn't describe it.

Basically when you speak, silence threshold is how loud silence is.

On a mobile call there might be quite a bit of background noise, so the 
silence threshold needs to be a bit higher.

If you have noise that is louder than the threshold then it will be 
considered as speaking.

Conversely, if you have words that are quieter than the threshold then 
they will be considered as silence.

I'm not sure what the units are, doesn't really make much difference. 
Basically you want it to be as low as possible, but not so low that it 
recognizes background noise as words.  Just have a play round with it 
while watching the console - call cellphones, answer machines, IVRs etc 
and keep tuning it till you get the results you want.

-- 
Kind Regards,

Matt Riddell
Director
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