# Audio Transrate not working

**URL:** <https://community.wowza.com/t/audio-transrate-not-working/48948>\
**Category:** Wowza Streaming Engine\
**Tags:** transcoder\
**Created:** [June 7, 2017, 5:14pm UTC](https://community.wowza.com/t/audio-transrate-not-working/48948 "2017-06-07T17:14:28Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![Jack\_Raffety](https://avatars.discourse-cdn.com/v4/letter/j/f19dbf/32.png) [@Jack\_Raffety](https://community.wowza.com/u/Jack_Raffety)\
**Post date:** [June 7, 2017, 5:14pm UTC](https://community.wowza.com/t/audio-transrate-not-working/48948/1 "2017-06-07T17:14:28Z")

</div>

I have taken one of our default templates and only changed the audio codec to AAC (instead of PassThru) so that we can transcode the audio to lower bitrates for some of the ABR renditions. But now my audio is not working at all.

p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo; color: #ba2da2} p.p2 {margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo; color: #000000} span.s1 {font-variant-ligatures: no-common-ligatures} span.s2 {font-variant-ligatures: no-common-ligatures; color: #000000} span.s3 {font-variant-ligatures: no-common-ligatures; color: #ba2da2}

true

480m

mp4:${SourceStreamName}\_480m

H.264

NVENC

fit-height

854

480

Main

1000000

true

60

AAC

128000