Wowza Community

No audio on output stream

Hi,

I’m inputting to Wowza an RTP h264 .ts with MPEG1 Audio layer ll Mode and there is no Audio on the output stream

What do I need to change in the config to make the audio work?

I’m using Wowza 4, see sample log:

#Version: 1.0

#Start-Date: 2014-02-19 11:44:47 GMT

#Software: Wowza Streaming Engine 4.0.0.00 build10425

#Date: 2014-02-19

#Fields: x-severity x-category x-event date time c-client-id c-ip c-port cs-bytes sc-bytes x-duration x-sname x-stream-id x-spos sc-stream-bytes cs-stream-bytes x-file-size x-file-length x-ctx x-comment

WARN server comment 2014-02-19 11:44:47 - - - - - 43488.986 - - - - - - - - LiveStreamPacketizerSanJose.handlePacket[liveorigin/definst/test.stream][mp4a.40.33]: MP3 Audio: Audio is not MPEG1 Layer 3. May not be playable by Flash player.

WARN server comment 2014-02-19 11:44:47 - - - - - 43488.988 - - - - - - - - LiveStreamPacketizerCupertino.handlePacket[liveorigin/definst/test.stream][mp4a.40.33]: MP3 Audio: Audio is not MPEG1 Layer 3. May not be playable on iOS devices.

WARN server comment 2014-02-19 11:44:47 - - - - - 43488.988 - - - - - - - - LiveStreamPacketizerSmoothStreaming.handlePacket[liveorigin/definst/test.stream][mp4a.40.33]: MP3 Audio: Audio is not MPEG1 Layer 3. May not be playable by Silverlight player.

WARN server comment 2014-02-19 11:44:47 - - - - - 43488.998 - - - - - - - - LiveStreamPacketizerSanJose.handlePacket[liveorigin/definst/test.stream][mp4a.40.33]: MP3 Audio: Audio is not MPEG1 Layer 3. May not be playable by Flash player.

WARN server comment 2014-02-19 11:44:47 - - - - - 43488.998 - - - - - - - - LiveStreamPacketizerCupertino.handlePacket[liveorigin/definst/test.stream][mp4a.40.33]: MP3 Audio: Audio is not MPEG1 Layer 3. May not be playable on iOS devices.

WARN server comment 2014-02-19 11:44:47 - - - - - 43488.999 - - - - - - - - LiveStreamPacketizerSmoothStreaming.handlePacket[liveorigin/definst/test.stream][mp4a.40.33]: MP3 Audio: Audio is not MPEG1 Layer 3. May not be playable by Silverlight player.

WARN server comment 2014-02-19 11:44:47 - - - - - 43489.004 - - - - - - - - LiveStreamPacketizerSanJose.handlePacket[liveorigin/definst/test.stream_source][mp4a.40.33]: MP3 Audio: Audio is not MPEG1 Layer 3. May not be playable by Flash player.

WARN server comment 2014-02-19 11:44:47 - - - - - 43489.008 - - - - - - - - LiveStreamPacketizerSanJose.handlePacket[liveorigin/definst/test.stream_360p][mp4a.40.33]: MP3 Audio: Audio is not MPEG1 Layer 3. May not be playable by Flash player.

WARN server comment 2014-02-19 11:44:47 - - - - - 43489.009 - - - - - - - - LiveStreamPacketizerCupertino.handlePacket[liveorigin/definst/test.stream_360p][mp4a.40.33]: MP3 Audio: Audio is not MPEG1 Layer 3. May not be playable on iOS devices.

WARN server comment 2014-02-19 11:44:47 - - - - - 43489.008 - - - - - - - - LiveStreamPacketizerSmoothStreaming.handlePacket[liveorigin/definst/test.stream_360p][mp4a.40.33]: MP3 Audio: Audio is not MPEG1 Layer 3. May not be playable by Silverlight player.

WARN server comment 2014-02-19 11:44:47 - - - - - 43489.011 - - - - - - - - LiveStreamPacketizerCupertino.handlePacket[liveorigin/definst/test.stream_source][mp4a.40.33]: MP3 Audio: Audio is not MPEG1 Layer 3. May not be playable on iOS devices.

WARN server comment 2014-02-19 11:44:47 - - - - - 43489.013 - - - - - - - - LiveStreamPacketizerSmoothStreaming.handlePacket[liveorigin/definst/test.stream_source][mp4a.40.33]: MP3 Audio: Audio is not MPEG1 Layer 3. May not be playable by Silverlight player.

WARN server comment 2014-02-19 11:44:47 - - - - - 43489.013 - - - - - - - - LiveStreamPacketizerCupertino.handlePacket[liveorigin/definst/test.stream_160p][mp4a.40.33]: MP3 Audio: Audio is not MPEG1 Layer 3. May not be playable on iOS devices.

WARN server comment 2014-02-19 11:44:47 - - - - - 43489.012 - - - - - - - - LiveStreamPacketizerSanJose.handlePacket[liveorigin/definst/test.stream_160p][mp4a.40.33]: MP3 Audio: Audio is not MPEG1 Layer 3. May not be playable by Flash player.

WARN server comment 2014-02-19 11:44:47 - - - - - 43489.015 - - - - - - - - LiveStreamPacketizerSmoothStreaming.handlePacket[liveorigin/definst/test.stream_160p][mp4a.40.33]: MP3 Audio: Audio is not MPEG1 Layer 3. May not be playable by Silverlight player.

A bit more info: there is audio on stream recordings captured from incoming streams

But no audio using the testplayer built into wowza 4

A few questions:

What is the source of the stream?

Is there video as well as audio, or audio only?

What player are you testing in?

Can you encode to a different audio format with the encoder?

Are there any other errors in the logs?

Are you using the Wowza Transcoder in this workflow?

Salvadore

Kevin, thanks for the update. Glad to hear it is working.

Salvadore

Hi Salvadore,

Thanks for your reply, I was using the Transrate to transcode and had passthough set for the audio.

It’s working now :slight_smile:

Kevin