Silent channel detection

[DvdKhl]

Hi,

Is there any way to detect silent audio channels (maybe with the use of AviSynth)?

I have some bogus video/audio files (avi, mkv, ogm, etc) which have mostly AC3 audio streams with 6 channels.
The problem ist they only have 2 channels which contain actual audio data,
the other channels are just silent.

I need a way to detect that.

[Blue_MiSfit]

If you load the files into AviSynth, SoundOut is very handy. It has an analysis tool that will break down each channel and show you the levels.

Give it a whirl :)

~MiSfit

[DvdKhl]

Looks promissing but I can't get it to work like I want it to:

I've installed AviSynth & AudioOut.

I create a script to get the 5. channel

DirectShowSource("{Multichannelfile}")
GetChannel(5)
SoundOut()

But an error message which tells me there isn't one.
I guess it is because DirectShow converts it to stereo before AviSynth gets hold of the audiostream.

Anyway to get all 6 channels?