Just about to buy mezzmo but I have encountered an audio problem

[Chris...]

Hi, I have been trialing Mezzmo and thought all was OK, until this evening.

When Mezzmo started to play an avi movie file, it said the audio was not supported and so there was no sound. The same movie file plays OK with the sound, using VLC media player on my PC.

All other files Mezzmo has trans-coded have been fine without any problems. The Device Profile I am using is Samsing B (MPEG-2).

If Mezzmo cannot trans-code avi to MPEG-2 then this is a problem that will prevent purchase. How I do to fix this problem, please?

Thanks, Chris

[Paul]

Hi Chris,

Please post the FFmpeg information for the problem AVI file. Right-click on the AVI file in Mezzmo and click 'Get FFmpeg Information'.

[Chris...]

Hi Chris,

Please post the FFmpeg information for the problem AVI file. Right-click on the AVI file in Mezzmo and click 'Get FFmpeg Information'.

Paul Hi,
The FFmepeg Information you ashed for:


ffmpeg version N-50460-g393dcbf Copyright (c) 2000-2013 the FFmpeg developers
built on Jun 27 2013 17:34:56 with gcc 4.6.2 (GCC)
configuration: --enable-memalign-hack --arch=x86 --target-os=mingw32 --cross-prefix=i686-w64-mingw32- --enable-static --disable-shared --enable-zlib --disable-postproc --prefix=/home/peter/ffmpeg/build/gpl32 --enable-libmp3lame --enable-libx264 --enable-gpl --extra-libs='-lx264 -lpthread' --enable-runtime-cpudetect --extra-cflags=-I/home/peter/cc32/include --extra-ldflags=-L/home/peter/cc32/lib --pkg-config=pkg-config --disable-w32threads --enable-zlib
libavutil 52. 17.103 / 52. 17.103
libavcodec 54. 92.100 / 54. 92.100
libavformat 54. 63.102 / 54. 63.102
libavdevice 54. 3.103 / 54. 3.103
libavfilter 3. 41.100 / 3. 41.100
libswscale 2. 2.100 / 2. 2.100
libswresample 0. 17.102 / 0. 17.102
Input #0, avi, from 'C:\TV Media\Video\To View\A.Movie.avi':
Metadata:
encoder : VirtualDubMod 1.5.4.1 (build 2066/release)
Duration: 02:30:30.88, start: 0.000000, bitrate: 2764 kb/s
Stream #0:0: Video: mpeg4 (Advanced Simple Profile) (XVID / 0x44495658), yuv420p, 720x388 [SAR 1:1 DAR 180:97], 25 tbr, 25 tbn, 25 tbc
Stream #0:1: Audio: ac3 ([0] [0][0] / 0x2000), 48000 Hz, 5.1(side), fltp, 448 kb/s
At least one output file must be specified

<MEZZMO>: Child process ended with code: 109, ExitCode=1


---> DB Level Info: 5, 15
---> Frame rate: 25.00
---> Aspect ratio: 180:97 PAR=1:1

I hope it helps as I have one day left on my trial!

Thanks, Chris

[Paul]

Thanks, Chris. This file should play fine (i.e. the format & codecs are supported by Samsung B-series TVs). The problem will be that the audio channel is encoded in such a way that your TV's firmware cannot decode and play it. VLC can decode and play it since it has better format and codec support as compared to your TV's firmware.

The best thing to do is to re-encode the video so that it fixes the audio channel. You can do this with a video converter tool or you can do it by pre-transcoding the file in Mezzmo. To pre-transcode using Mezzmo, right-click on the video in Mezzmo and click 'Pre-transcode Files'. Select your TV and then click 'Choose Formats'. On the Pre-transcoding Formats dialog, select the bolded format and select the 'Force full transcode of all channels' checkbox. Click OK. Select the 'Pre-transcode files even if they match the devices supported formats' checkbox. Click OK and wait until the file has been fully transcoded. Then try streaming the video again. More information about pre-transcoding can be found here - http://forum.conceiva.com/showthread.php/6025-Tutorial-Pre-transcoding-Files