[asterisk-app-dev] Pops when starting/switching audio files

Joshua Colp jcolp at digium.com
Fri Sep 5 06:27:15 CDT 2014

Krandon wrote:
> Hello my friends,
> I seem to be hearing a "pop" when starting audio files or restarting
> audio files through the ARI interface.
> Here is a link to an example: http://bit.ly/WhguWi
> Any ideas why this may be? I thought it may be because of artifacts in
> the WAV file, but I've tried with mp3 and ulaw exported.

What happens if you do a Playback, Wait, Playback in the dialplan? What 
about a Playback and a Playback? Does the same thing happen? Can you 
provide a wireshark capture of the RTP?

The underlying issue might be that whatever you are connected to doesn't 
like gaps in the media flow, which can happen with Asterisk.

Joshua Colp
Digium, Inc. | Senior Software Developer
445 Jan Davis Drive NW - Huntsville, AL 35806 - US
Check us out at: www.digium.com & www.asterisk.org

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