# multi-track audio

**URL:** <https://community.wowza.com/t/multi-track-audio/36671>\
**Category:** Wowza Streaming Engine\
**Created:** [November 15, 2011, 5:23pm UTC](https://community.wowza.com/t/multi-track-audio/36671 "2011-11-15T17:23:36Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![asas\_asas](https://avatars.discourse-cdn.com/v4/letter/a/da6949/32.png) [@asas\_asas](https://community.wowza.com/u/asas_asas)\
**Post date:** [November 15, 2011, 5:23pm UTC](https://community.wowza.com/t/multi-track-audio/36671/1 "2011-11-15T17:23:36Z")

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Hello,

It’s possible to stream live video with two or more languages (english, german etc.)?

I found post about mp4 file streaming, but what about live stream?

Thanks.

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**Author:** ![Richard\_Lanham](https://avatars.discourse-cdn.com/v4/letter/r/c68b51/32.png) [@Richard\_Lanham](https://community.wowza.com/u/Richard_Lanham)\
**Post date:** [November 16, 2011, 12:23am UTC](https://community.wowza.com/t/multi-track-audio/36671/2 "2011-11-16T00:23:51Z")

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This is possible with mpeg-ts and native rtp with multiple audio tracks. You need to turn on udp port sharing.

[https://www.wowza.com/docs/how-to-enable-udp-port-sharing-unicast-and-multicast](https://www.wowza.com/docs/how-to-enable-udp-port-sharing-unicast-and-multicast)

If mpeg-ts, use audiopid and videopid query params to select language. If native rtp, use multiple sdp files each pointing at different language.

Richard