Audio quality on DivX/xVid transcodes

[idbirch2]

Hi,

I use GB-PVR for streaming AVIs to my MVP as it does a far better job than the Hauppauge software. I have ramped up the resolution in config.xml to 720*576 and the picture looks awesome!! (thanks sub)

The sounds a little weird though. I think, to my untrained ear, that its in mono and possibly at something like 22,000 sampling rate, it just doesn't sound great. I scoured the config.xml file and the config.exe util for audio settings but couldn't find any.

Is it possible to increase the quality of the transoded audio aswell as just the video?

Cheers.

[sub]

GB-PVR uses ffmpeg for its trancoding. Look at the <MVPFFmpegTranscodeCmdLinePAL> or <MVPFFmpegTranscodeCmdLineNTSC> settings in config.xml. Documentation on the ffmpeg command line parameters can be found at http://ffmpeg.sourceforge.net

[idbirch2]

Thanks sub, that did the trick. For anyone else who is looking for this setting you need to add the -ab switch for the MVP transcode line in config.xml. Mine now looks like this:

Code:

<MVPFFmpegTranscodeCmdLinePAL>-y -i "{SOURCE_FILE}" -b 2400 -ab 160 -r 25 -s 720x576 -vcodec mpeg2video "{DEST_FILE}"</MVPFFmpegTranscodeCmdLinePAL>
  <MVPFFmpegTranscodeCmdLineNTSC>-y -i "{SOURCE_FILE}" -b 2400 -ab 160 -r 25 -s 720x480 -vcodec mpeg2video "{DEST_FILE}"</MVPFFmpegTranscodeCmdLineNTSC>

and results in 720*576 video with 160kbps MP3 audio, it looks and sounds great!