# Can the manifest file include multiple audio codecs : (1) passthrough audio codecs like AC3 and (2) AAC as transcoded renditions

**URL:** <https://community.wowza.com/t/can-the-manifest-file-include-multiple-audio-codecs-1-passthrough-audio-codecs-like-ac3-and-2-aac-as-transcoded-renditions/52182>\
**Category:** Wowza Streaming Engine\
**Tags:** transcoder\
**Created:** [October 23, 2018, 10:38pm UTC](https://community.wowza.com/t/can-the-manifest-file-include-multiple-audio-codecs-1-passthrough-audio-codecs-like-ac3-and-2-aac-as-transcoded-renditions/52182 "2018-10-23T22:38:01Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![John\_Murphy](https://avatars.discourse-cdn.com/v4/letter/j/13edae/32.png) [@John\_Murphy](https://community.wowza.com/u/John_Murphy)\
**Post date:** [October 23, 2018, 10:38pm UTC](https://community.wowza.com/t/can-the-manifest-file-include-multiple-audio-codecs-1-passthrough-audio-codecs-like-ac3-and-2-aac-as-transcoded-renditions/52182/1 "2018-10-23T22:38:01Z")

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Hello. Is it possible to use one playlist/manifest file that includes different audio codecs that the player can select from? My specific question is can the playlist/manifest file include a codec like AC3 for the passthrough rendition and other transcoded renditions of various bitrates using AAC. Thank you in advance!