[asterisk-users] Garbled voicemail

[Ruben Rögels]

Hi Dan,

my wild speculation: It's some kind of timing/synchronisation problem.
Do you use jitter buffer an/or echo cancelation?

Best regards,
Ruben

-----Ursprüngliche Nachricht-----
Von: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] Im Auftrag von Dan Ritter
Gesendet: Donnerstag, 9. Februar 2012 17:33
An: Asterisk Users Mailing List - Non-Commercial Discussion
Betreff: [asterisk-users] Garbled voicemail

Our Asterisk system (1.8.8.1-1digium1~squeeze) has been very

stable and generally doing a good job -- except that one day,

voicemail recordings started being garbled.

 

It only manifests when the VM comes from our telco gateway

service -- OnSIP/Junction -- and not from internal phones or

from an Asterisk box I have at home.

 

We have voicemail set to record to WAV, and real files are

being generated -- but it sounds incredibly sped up, faster than

chipmunks. Completely unintelligible, even if you pull it into

an audio editor and slow down playback.

 

It is not perfectly consistent, but it happens in about 85% of

voicemail recordings left from the outside world through OnSIP.

 

We've had several years of trouble-free voicemail before this.

 

Anyone seen anything similar? Advice? Wild speculation?

 

-dsr-

        

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