[asterisk-bugs] [Asterisk 0016907]: jerky audio after a while

Asterisk Bug Tracker noreply at bugs.digium.com
Mon Aug 2 15:40:19 CDT 2010


A NOTE has been added to this issue. 
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https://issues.asterisk.org/view.php?id=16907 
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Reported By:                pj
Assigned To:                mnicholson
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Project:                    Asterisk
Issue ID:                   16907
Category:                   Addons/chan_mobile
Reproducibility:            random
Severity:                   major
Priority:                   normal
Status:                     assigned
Asterisk Version:           SVN 
JIRA:                        
Regression:                 No 
Reviewboard Link:            
SVN Branch (only for SVN checkouts, not tarball releases):  trunk 
SVN Revision (number only!): 248793 
Request Review:              
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Date Submitted:             2010-02-25 16:03 CST
Last Modified:              2010-08-02 15:40 CDT
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Summary:                    jerky audio after a while
Description: 
Some calls become choppy after some minutes, often in outgoing direction
from chan_mobile to destination, ie. called party hears heavy jerky,
unusable audio, like voip over slow and jittery connection. Incomming audio
direction is mostly OK, but sometimes are affected both directions with
jerky sound after a while. In first minutes of call are both audio streams
(rx/tx) clear.

"hciconfig -a" doesn't show errors on bt device
I tried change bluetooth class: "hciconfig hci0 class 0x400404"
and remove ehci_hcd module: "modprobe -r ehci_hcd"
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---------------------------------------------------------------------- 
 (0125436) dveiga (reporter) - 2010-08-02 15:40
 https://issues.asterisk.org/view.php?id=16907#c125436 
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I'm also experiencing a similar problem, but in the other direction. When I
use chan_mobile to call a number outside my PBX, I'm the one that hears the
noise after some time, not the other party. My configuration is as follows

POTS Phone -> Dahdi -> chan_dahdi -> Asterisk -> chan_mobile -> CellPhone

I considered DAHDI's echo canceller getting confused by the echo canceller
of the phone, so I made a small modification to chan_mobile to call DAHDI's
setoption() and disable echo cancellation (AST_OPTION_ECHOCAN) when
bridging both channels. It didn't work.

BTW, does anybody know if this branch is still alive. I've published a
cluple of patches and I've been monitoring the progress of them and other
issues but there have been no changes for a while... 

Issue History 
Date Modified    Username       Field                    Change               
====================================================================== 
2010-08-02 15:40 dveiga         Note Added: 0125436                          
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