# iOS MP3 - wowza 3.6 transcode
**URL:** https://community.wowza.com/t/ios-mp3-wowza-3-6-transcode/38373
**Category:** Wowza Streaming Engine
**Created:** [November 6, 2015, 1:44pm UTC](https://community.wowza.com/t/ios-mp3-wowza-3-6-transcode/38373 "2015-11-06T13:44:41Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@Phil\_Smith](https://community.wowza.com/u/Phil_Smith)
#### Post date: [November 6, 2015, 1:44pm UTC](https://community.wowza.com/t/ios-mp3-wowza-3-6-transcode/38373/1 "2015-11-06T13:44:41Z")
I have been running a monthly license with no add ons on a wowza 3.6 for a couple years. Our streamers have always used h264/AAC no problems as we understood this was the only way to steam to iOS without transcoding. I had a chance to uses a Windows machine and fmle, to my surprise h264/MP3 baseline 3.2 works just fine with iOS. When wowza 4 came along they sent me a new license, my question is did they toss in the Add ons (transcode) with the new license or has iOS now changed to allow MP3 in the live stream?
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### Author:  [@sal\_jefferson](https://community.wowza.com/u/sal_jefferson)
#### Post date: [November 6, 2015, 12:57pm UTC](https://community.wowza.com/t/ios-mp3-wowza-3-6-transcode/38373/2 "2015-11-06T12:57:11Z")
Hello there.
iOS has supported MP3. It is best to use MP3 at 44100Hz, 128kbs. Take a look at [table 1.1 here](https://developer.apple.com/library/ios/documentation/AudioVideo/Conceptual/MultimediaPG/UsingAudio/UsingAudio.html)
And yes, Wowza now includes the Wowza Transcoder with the monthly license as of version 4.0. No additional licenses are needed for Transcoder.
Regards,
Salvadore