[Solved] No Sound Playing some mp4 files

[giskard]

Using Universal Media Server some of my mp4 files play with out sound. When I use PS3 media server these same files play with sound. Do you see a configuration issue in the debug files. Thanks.

[Supermanfan77]

Wish I knew what the log files mean lol. But in the mean time till you hear from a Dev. switch FFmpeg to MEncoder in the transcode settings. PS3 Media server uses MEncoder as its default encoder and UMS uses FFmpeg as the default, for some reason the audio on the mp4's you can't hear audio on are encoded differently from some of the others. Another alternative would be to uncheck the "Hide the Transcode folder if you have it checked off and use MEncoder from there.

[SubJunk]

Can you upload the video file somewhere or send me a link to it so I can test it?

[giskard]

Here is a link to a file I have trouble playing.


http://veehd.com/video/4829461_Doctor-W ... Part-3-MP4

[SubJunk]

I just tested that file and found it worked with every engine except tsMuxeR, and you seem to have the setting "Remux videos with tsMuxeR" enabled in the FFmpeg settings. Disabling that might help with that video.

[giskard]

I tried disabling "Remux videos with tsMuxeR" in the FFmpeg settings. That did not help. Still no sound with that video.

[SubJunk]

Can you please make a debug log where you play that video?

[giskard]

Here is a new debug file playing the video.

[SubJunk]

There doesn't seem to be anything wrong with the output. Here's the code being passed to FFmpeg for the record:

Code: Select all

ffmpeg -y -loglevel info -i input.mp4 -bufsize 1835000 -maxrate 499000000 -g 5 -q:v 1 -qmin 2 -qmax 3 -ab 448k -c:a ac3 -c:v mpeg2video -f vob output.mpeg

Some renderers have problems playing files with such low resolutions so I wonder if that is the issue. Here are new renderer profiles for you to try, just unzip them and replace your current one in C:\Program Files (x86)\Universal Media Server\renderers\Sony-BraviaEX.conf with them one at a time to see if any of them improves it.

[giskard]

I tried the three renderer profiles but they did not help. But you may be right about low resolution. I noticed that all the files with no sound show an audio sample rate of 22kHz. All files with an audio sample rate of 44kHz or above play with sound.