pcm audio viewer filter?

[dinston]

I think it would be very useful in some instances
to be able to view the audio waveform associated
with a particular frame of video. Does anyone
know if such a filter exists for avisynth? It
seems it would be very easy to code. Something
such as:

PCMView()

would replace the video with a wave pattern
representing the audio samples associated
with the period of time of each frame.

You could decimate the video, or SelectEvery(10,0)
for instance, if you wanted to see a greater period
of time.

This would be a great tool for debugging audio/video
synchronization.

[WarpEnterprises]

Would be nice and not to difficult to make.
Does anybody know how to upsample the audio or generate a envelope function to give that nice lines like in cooledit?

[hakko504]

I think this could be a wonderful addition to johann langhofer's Avisynth montor.

And the code for resampling is available somewhere in the audio.cpp file of avisynth.