# Audio / Video Sync Issues (Live RTMP Stream - Potential Encoder Config. Issue) **URL:** \ **Category:** Wowza Streaming Engine\ **Created:** [May 22, 2014, 7:57am UTC](https://community.wowza.com/t/audio-video-sync-issues-live-rtmp-stream-potential-encoder-config-issue/40709 "2014-05-22T07:57:53Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![Nicholas\_Russell](https://avatars.discourse-cdn.com/v4/letter/n/7c8e57/32.png) [@Nicholas\_Russell](https://community.wowza.com/u/Nicholas_Russell)\ **Post date:** [May 22, 2014, 7:57am UTC](https://community.wowza.com/t/audio-video-sync-issues-live-rtmp-stream-potential-encoder-config-issue/40709/1 "2014-05-22T07:57:53Z")
There has been one issue in particular that has long baffled me: **audio / video out-of-sync for live RTMP streams.** While I have not been able to discover a resolution to this issue on my own using the forum, Google, and anything else I can imagine - I am sure that there must be others facing this issue. First and foremost, let me provide some rich details about the issue. **Wowza Streaming Engine 4 Monthly Edition 4.0.1 build10615** - We are using ViewCast Niagara 2200 Encoders - We are experiencing this issue accross all of our streams on ALL devices (iOS, Flash playback, etc.) - I do honestly believe the issue may lie in the configuration of the encoder, however, I have not been able to determine what exactly is causing the issue - In the error log, we often see: “Fragment duration great than suggested range of 1 - 4 seconds” for live streams - In the error log, we also often see: “Timecode out of order [video]” ---
**Author:** ![Nicholas\_Russell](https://avatars.discourse-cdn.com/v4/letter/n/7c8e57/32.png) [@Nicholas\_Russell](https://community.wowza.com/u/Nicholas_Russell)\ **Post date:** [May 22, 2014, 8:08am UTC](https://community.wowza.com/t/audio-video-sync-issues-live-rtmp-stream-potential-encoder-config-issue/40709/2 "2014-05-22T08:08:03Z")
Our log files, conf files, transcoder files, and applications file are packaged in a Zip folder (7.55Mb) created for purposes of diagnosing with this community, and can be obtained here: [http://media.lightwayms.com/wowza/WowzaLogsAndConf.zip](http://media.lightwayms.com/wowza/WowzaLogsAndConf.zip) ---
**Author:** ![Matt\_Young](https://sea2.discourse-cdn.com/flex002/user_avatar/community.wowza.com/matt_young/32/389_2.png) [@Matt\_Young](https://community.wowza.com/u/Matt_Young)\ **Post date:** [May 23, 2014, 9:50am UTC](https://community.wowza.com/t/audio-video-sync-issues-live-rtmp-stream-potential-encoder-config-issue/40709/3 "2014-05-23T09:50:07Z")
Please refer to ticket ```auto #92381 ``` ---
**Author:** ![RAMA\_SHANKAR](https://avatars.discourse-cdn.com/v4/letter/r/c37758/32.png) [@RAMA\_SHANKAR](https://community.wowza.com/u/RAMA_SHANKAR)\ **Post date:** [August 3, 2015, 10:25pm UTC](https://community.wowza.com/t/audio-video-sync-issues-live-rtmp-stream-potential-encoder-config-issue/40709/4 "2015-08-03T22:25:08Z")
Hi, We are facing the same issue, can you tell us what is the **ticket #92381** or Solution for this problem ---
**Author:** ![Michelle\_B](https://sea2.discourse-cdn.com/flex002/user_avatar/community.wowza.com/michelle_b/32/394_2.png) [@Michelle\_B](https://community.wowza.com/u/Michelle_B)\ **Post date:** [August 5, 2015, 1:44pm UTC](https://community.wowza.com/t/audio-video-sync-issues-live-rtmp-stream-potential-encoder-config-issue/40709/5 "2015-08-05T13:44:51Z")
Hi, Posting support staff response to this issue for other users: The “Timecode out of order [video]” error generally indicates an encoder issue. It also could be an issue when the machine CPU utilization or GPU utilization is maximized. It could be after time it stops being able to keep up in its delivery. So you should likely check your encoder. To help debug further, you might try the following and send back the logs generated: [How to debug AAC or MP3 timecode issues with cupertino packetization](https://www.wowza.com/docs/how-to-debug-aac-or-mp3-timecode-issues-with-apple-hls-packetization) Michelle