Re: Clicks in audio

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On Tue, Oct 17, 2017, at 01:19 PM, Naftoli Gugenheim wrote:
> Hi, thanks for replying.
> 
> 1. I have opened the files in audacity. When I play it on my computer I
> can't hear anything like the popping sound. Visually I'm not really sure
> what to look for. I mean I can't see a some that looks like it would
> account for such a loud pop.
> 2. Not all prompts have the issue, so it's definitely particular to
> certain
> files, however I'm not sure what it is about those files that's
> triggering
> it.
> 3. I'm skeptical of dropped packets since the same issue happens when I'm
> running everything on my laptop (the fastagi app, asterisk, and the sip
> phone)
> 
> I attached public links to the files (the second link is the source audio
> files). Maybe someone that knows a bit more about audio files can look at
> them?

The endpoint receiving them can also have an impact. Asterisk doesn't
generally generate media on its own. This means that if you play a sound
file, wait, play a sound file, etc, there is no silence generated in
that gap period. The endpoint may not be liking the resulting RTP
stream, resulting in it getting confused when the sound file changes and
causing an actual audio manifestation.

-- 
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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