asterisk users - Oct 2006 - noise gate for asterisk?

Hi list,
I have a client with a strange requirement: putting a noise gate on the
Asterisk channel. For those who are not familiar with them, noise gates
are used in musical instruments to avoid entering low-level noise into the
amp system. What they basically do is, they measure the volume of the
channel, and when it's too low they just let the channel close, i.e send
perfect silence, therefore killing low-level buzzing sounds. My client has
such a need because they have analog voice-operated push-to-talk
half-duplex devices on the other side, and low level noise from the
Asterisk side will keep the channel open.
I will try diminishing the TXgain, but I wondered if there were other
options too.
l.


-- 
Loway Research - Home of QueueMetrics
http://queuemetrics.loway.it

On Fri, Oct 20, 2006 at 03:59:38PM +0200, Lenz wrote:
> My client has
> such a need because they have analog voice-operated push-to-talk
> half-duplex devices on the other side, and low level noise from the
> Asterisk side will keep the channel open.
Here's a dumb question: Failing all else, why not use an actual analog
noise gate? They can be had cheaply enough.

--
Phil

Whar sort of interface are you using? Whats at both ends of the calls? Are
you sure that noise is generated by Asterisk itself and not by any of the
interfaces?

On 10/20/06, Lenz <lenz-ml@loway.it> wrote:
>
> Hi list,
> I have a client with a strange requirement: putting a noise gate on the
> Asterisk channel. For those who are not familiar with them, noise gates
> are used in musical instruments to avoid entering low-level noise into the
> amp system. What they basically do is, they measure the volume of the
> channel, and when it's too low they just let the channel close, i.e
send
> perfect silence, therefore killing low-level buzzing sounds. My client has
> such a need because they have analog voice-operated push-to-talk
> half-duplex devices on the other side, and low level noise from the
> Asterisk side will keep the channel open.
> I will try diminishing the TXgain, but I wondered if there were other
> options too.
> l.
>
>
> --
> Loway Research - Home of QueueMetrics
> http://queuemetrics.loway.it
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