[Asterisk-Users] Play volume/speed adjustment on the per call basis

[Alex Zarubin]

Hi,

It is important for some applications (voicemail and the like) to control
play volume and speed if instructed by the caller. The question is: how to
do it the right way with asterisk.

As far as volume - adding txgain and rxgain to the call structure[s]
and setting gains from there (instead of taking global values from config
files)
looks like an OK solution.

As far as speed - the easy way would be using sox 'speed' effect.

Any comments/suggestions are appreciated.

Thank you.

Alex Zarubin
Webley Systems, Inc.
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