C20 audio issue

[wouter.hammer]

Hi,

I'm troubleshooting an issue at a customer site. They have several C20 codecs in the same building. Quality of service is configured the same for all C20 endpoints. One of these endpoints is having issues with audio (one way). It's not a permanent problem but it happens once or twice a week.

This problem always involves the same codec. This is a C20 codec running old software: TC3.1.1.220240

I made several test calls but could not reproduce the problem. I asked the customer to keep dates and time when this problem occures, this way I could find the following error messages in the audio0.log logfile:

Jan 30 16:07:09 (none) audio0: Err:AUDLOCALIN_doecReferenceDataHandler: Redundant ls reference buffer received, <seq 114854656>.
Jan 30 16:07:09 (none) audio0:  !AUDLOCALIN-0 <- AUDLOCALOUT-0 AUDLOCALIN_ec_reference_data  S:Ready
Jan 30 16:07:09 (none) audio0: AUDLOCALIN_inputDataHandler: Orion loudspeaker ref not started
Jan 30 16:23:23 (none) audio0: E functional/audio/codec/fsm/aud_dectask.c(1466) AudDec_storeInputBuf Dec 2, std AACLD: Input queue full, dropping <time 114953771>
Jan 30 16:23:23 (none) audio0: E functional/audio/codec/fsm/aud_dectask.c(1466) AudDec_storeInputBuf Dec 2, std AACLD: Input queue full, dropping <time 114953807>
Jan 30 16:23:25 (none) audio0: E functional/audio/codec/fsm/aud_dectask.c(1466) AudDec_storeInputBuf Dec 2, std AACLD: Input queue full, dropping <time 114954021>
Jan 30 16:23:28 (none) audio0: E functional/audio/codec/fsm/aud_dectask.c(1466) AudDec_storeInputBuf Dec 2, std AACLD: Input queue full, dropping <time 114954283>
Jan 30 16:23:31 (none) audio0: E functional/audio/codec/fsm/aud_dectask.c(1466) AudDec_storeInputBuf Dec 2, std AACLD: Input queue full, dropping <time 114954567>
Jan 30 16:23:31 (none) audio0: E functional/audio/codec/fsm/aud_dectask.c(1466) AudDec_storeInputBuf Dec 2, std AACLD: Input queue full, dropping <time 114954569>
Jan 30 16:54:00 (none) audio0: E functional/audio/codec/fsm/aud_dectask.c(1466) AudDec_storeInputBuf Dec 2, std AACLD: Input queue full, dropping <time 115137562>
Jan 30 16:54:00 (none) audio0: E functional/audio/codec/fsm/aud_dectask.c(1466) AudDec_storeInputBuf Dec 2, std AACLD: Input queue full, dropping <time 115137562>
Jan 30 17:01:47 (none) audio0: One sec of audcstd_off packets: changeing codestd ot AUDCSTD_OFF
Jan 30 17:02:20 (none) audio0: One sec of audcstd_off packets: changeing codestd ot AUDCSTD_OFF
Jan 30 17:03:13 (none) audio0: One sec of audcstd_off packets: changeing codestd ot AUDCSTD_OFF

Like I said QOS is configured exactly the same for al C20's. Could this be a hardware/software problem? Or should I investigate the network some more?

Thank you in advance for your help,

Best regards,

Wouter

[vivsing2]

Hi Wouter,

I would like to know whether all other codec are also on same software version as this is very old software.

Regards,
Vivek


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[wouter.hammer]

Hi Vivek,

Most C20 codecs run this sofware version. I'm currently discussing a support contract so I can upgrade all codecs. The strange thing is that the other codecs running the same SW version are not experiencing the same issues. Maybe I should swap the problem codec with a working one, and see if the problem moves too.

Regards,

Wouter

[wouter.hammer]

This issue seems to be resolved by setting the switchport and codec to 100/full

Running for 2 weeks without issues!

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[Ravi Yadav · Accepted solution]

Hi Wouter,

Good to hear that the issue was resolved with that however we strongly recommend to upgrade the codecs to the latest version

if not the latest version then at least to TC 5.1.6

Thanks

Ravi kr.

[wouter.hammer]

We are still discussing a support contract. I will upgrade all endpoint as soon as i can.


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[wouter.hammer]

The c20 has been upgraded and is working without any problems thank you for your support!

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