# Lip Sync issue - Cisco telepresence content server

**URL:** <https://community.wowza.com/t/lip-sync-issue-cisco-telepresence-content-server/45722>\
**Category:** Wowza Streaming Engine\
**Created:** [July 24, 2015, 5:19pm UTC](https://community.wowza.com/t/lip-sync-issue-cisco-telepresence-content-server/45722 "2015-07-24T17:19:54Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![Jagatheesh\_kumar](https://avatars.discourse-cdn.com/v4/letter/j/bbce88/32.png) [@Jagatheesh\_kumar](https://community.wowza.com/u/Jagatheesh_kumar)\
**Post date:** [July 24, 2015, 5:56pm UTC](https://community.wowza.com/t/lip-sync-issue-cisco-telepresence-content-server/45722/2 "2015-07-24T17:56:13Z")

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> We are using cisco telepresence content server 6.2 . Flash content is streamed live from Cisco TCS to wowza … then it is published to CDN network .
> 
> Voice and video doesnt sync . video is faster than voice.
> 
> I tried sort buffer and packetisation as specified in the forum but i couldnt resolve the issue . Let me know if
> 
> Sort buffer - 250/750 /2500 - tried them all
> 
> 2015-07-24 00:01:43 IST comment server INFO 200 - PushPublishRTMP.sendPackets[rtmp://hidden]: send: count:1181378 tc(a/v/d):15576632/15576627/15576483 seq:1181449/1181449 - - - 36986.319 - - - - - - - - - - - - - - - - - - - - - - - - -
> 
> 2015-07-24 00:01:43 IST comment server INFO 200 - PushPublishRTMP.sendPackets[rtmp://hidden]: send: count:1181534 tc(a/v/d):15577144/15577127/15576483 seq:1181608/1181608 - - - 36986.819 - - - - - - - - - - - - - - - - - - - - - - - - -
> 
> [Lip Sync Issue during LiveStreaming](http://community.wowza.com/t/-/39345)

Video is fine for first 2 hours and lip sync occurs beyond that time .

Also am not sure if this is tc(0) or tc(1)…

tc(a/v/d):15576632/15576627/15576483

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