[asterisk-bugs] [Asterisk 0017873]: Record audio channels gets out of sync

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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https://issues.asterisk.org/view.php?id=17873 
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Reported By:                aureliors123
Assigned To:                
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Project:                    Asterisk
Issue ID:                   17873
Category:                   Applications/app_mixmonitor
Reproducibility:            random
Severity:                   minor
Priority:                   normal
Status:                     acknowledged
Asterisk Version:           1.6.2.10 
JIRA:                       SWP-2320 
Regression:                 No 
Reviewboard Link:            
SVN Branch (only for SVN checkouts, not tarball releases): N/A 
SVN Revision (number only!):  
Request Review:              
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Date Submitted:             2010-08-16 22:16 CDT
Last Modified:              2011-01-31 07:38 CST
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Summary:                    Record audio channels gets out of sync
Description: 
When recording with mixmonitor, some record files channels gets out of
sync.
The scenario was:
- Medium call traffic: More than 60 and less than 120 concurrent calls.
- All calls are recorded
- Codec: Alaw
- Record File format: WAV GSM
- Processor load: Never more than 50%
- Asterisk Version: 1.6.2.10 (also happened in older versions, since
1.4.19)
- SO Debian 5.0.3 - 2.6.26-2-686
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 (0131261) aureliors123 (reporter) - 2011-01-31 07:38
 https://issues.asterisk.org/view.php?id=17873#c131261 
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Ronald, we´ve tried saving the conversation to a RAM Disk and them moving
the record to the phisical disk, but the problem still happening.

Also, we tried to use Khomp channels (Excelent Brazilian manufacturer),
and again we had problems with audio sync at the record file.

The scenario is inbound and outbound, and the problem happens at both kind
of calls, but much more frequently at inbound calls.

I´ve not been able to test it, but i know that the record audio sync
problems started at V1.4.17 or V1.4.18. I realized it when upgrading to
newer versions solve SIP stuck chans issue.
I hope this can be a clue.

Rgds
Marco Aurelio 

Issue History 
Date Modified    Username       Field                    Change               
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2011-01-31 07:38 aureliors123   Note Added: 0131261                          
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