# Choppy/Stuttering Audio

**URL:** https://community.wowza.com/t/choppy-stuttering-audio/48188
**Category:** Wowza Streaming Engine
**Created:** [March 1, 2017, 9:49am UTC](https://community.wowza.com/t/choppy-stuttering-audio/48188 "2017-03-01T09:49:33Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![Rohan\_Patel1](https://avatars.discourse-cdn.com/v4/letter/r/c5a1d2/32.png) [@Rohan\_Patel1](https://community.wowza.com/u/Rohan_Patel1)
#### Post date: [March 1, 2017, 9:49am UTC](https://community.wowza.com/t/choppy-stuttering-audio/48188/1 "2017-03-01T09:49:33Z")

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Hi,

I have an RTP stream fed into Wowza. I am using stream files tab to pick this MpegTS IP stream.

When I try to transcode this to H.264/AAC, I see timecode out of order issues in error log.

But when I enable mpegTSAudioAligned feature under Stream File --\> Properties --\> MpegTS and set it to True, the timecode out of order error disappears but when I playback this transcoded H.264/AAC stream, the audio is terribly choppy.

Any ideas how to sort this?

Thank you

,

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### Author: ![Alex\_C](https://avatars.discourse-cdn.com/v4/letter/a/bbe5ce/32.png) [@Alex\_C](https://community.wowza.com/u/Alex_C)
#### Post date: [April 1, 2017, 4:48am UTC](https://community.wowza.com/t/choppy-stuttering-audio/48188/2 "2017-04-01T04:48:53Z")

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Hello,

I would recommend you look in to changing the RTP Jitter Buffer properties that are [outlined here](https://www.wowza.com/docs/how-to-publish-and-play-a-live-stream-mpeg-ts-based-encoder#align).

In addition to enabling _mpegTSAudioAligned_ you can also increase the buffer time in _rtpDePacketizerPacketSorterBufferTime._

Further details about setting the packet sorter buffer time can be found [here](https://www.wowza.com/docs/how-to-turn-on-an-rtp-jitter-buffer-and-packet-loss-logging-rtp-and-mpeg-ts).

Hope this helps.

Regards,

Alex
