# Cannot stream mp3 files over https

**URL:** <https://community.wowza.com/t/cannot-stream-mp3-files-over-https/51816>\
**Category:** Wowza Streaming Engine\
**Created:** [August 16, 2018, 10:26pm UTC](https://community.wowza.com/t/cannot-stream-mp3-files-over-https/51816 "2018-08-16T22:26:24Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Thaddeus\_Valk](https://avatars.discourse-cdn.com/v4/letter/t/b38774/32.png) [@Thaddeus\_Valk](https://community.wowza.com/u/Thaddeus_Valk)\
**Post date:** [August 16, 2018, 10:26pm UTC](https://community.wowza.com/t/cannot-stream-mp3-files-over-https/51816/1 "2018-08-16T22:26:24Z")

</div>

Hi,

I am trying to stream my videos and audio using Wowza Streaming Engine v4.7.4 on Windows 2012 Server. My mp4 video files stream properly; however, I’m having issues trying to stream mp3 files directly. Is there a preset or some setting we need to add that I’m missing to allow support for streaming mp4 files? FYI, the error I see is “ **unknown acodec:mp4a.40.34** ”, when I’m trying to stream mp3 files. This is over streamlock link and I’m adding _/playlist.m3u8_ at the end of the Playback URL.

I’ve also already followed the steps for single streams from [https://www.wowza.com/docs/how-to-add-resolution-and-codec-metadata-to-ios-streams](https://www.wowza.com/docs/how-to-add-resolution-and-codec-metadata-to-ios-streams). I added these property items to **[install-dir]/conf/[application]/Application.xml**:

```auto
<Property>
	<Name>cupertinoCalculateCodecs</Name>
	<Value>true</Value>
	<Type>Boolean</Type>
</Property>
<Property>
	<Name>cupertinoCalculateResolution</Name>
	<Value>true</Value>
	<Type>Boolean</Type>
</Property>

```

Can anyone help me figure out what the issue is?

Also, none of the media plays over iphone or ios devices, but I’m guessing that’s a totally different problem.

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<div class="post-metadata">

**Author:** ![Rose\_Power-Wowza\_Com](https://sea2.discourse-cdn.com/flex002/user_avatar/community.wowza.com/rose_power-wowza_com/32/431_2.png) [@Rose\_Power-Wowza\_Com](https://community.wowza.com/u/Rose_Power-Wowza_Com)\
**Post date:** [August 17, 2018, 9:17pm UTC](https://community.wowza.com/t/cannot-stream-mp3-files-over-https/51816/2 "2018-08-17T21:17:12Z")

</div>

Hi @Thaddeus Valk, that is odd, it should be working for you. Can you please submit a support ticket and we will take a closer look at it with you. You can do that here:

> **[Open a Support Ticket | Wowza Media Systems](https://www.wowza.com/support/open-ticket)**
>
> Wowza technical support engineers worldwide help you succeed with your Wowza Streaming Engine™ software or the Wowza Streaming Cloud™ service.

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<div class="post-metadata">

**Author:** ![Michael\_Holt1](https://avatars.discourse-cdn.com/v4/letter/m/9e8a1a/32.png) [@Michael\_Holt1](https://community.wowza.com/u/Michael_Holt1)\
**Post date:** [August 18, 2018, 8:01pm UTC](https://community.wowza.com/t/cannot-stream-mp3-files-over-https/51816/3 "2018-08-18T20:01:56Z")

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Look at this question asked previously in the forum.

[http://community.wowza.com/community/questions/6427/html5hlsmp4a4034-problem.html](http://community.wowza.com/community/questions/6427/html5hlsmp4a4034-problem.html)