AC3 Copy Protection?

[Acid_Reign]

I used DGIndex to demux the AC3 file from a broadcast recording. I know the MPEG is not copy protected. When I open it in MPC, it plays fine. And yet when I run the AC3 through NicAudio, everything is silent—except the commercials. As I have used the same software versions on other broadcasts no problem, I doubt this is an issue with the software.

Has anyone encountered this before? Is there a way around it, aside from recording the Stereo Mix?

[sneaker_ger]

Can't really help you much but could it be that the numbers of channels or the bitrate changes at the commercials and NicAudio can't handle that?

[tebasuna51]

AviSynth can't handle audio streams than change the NumOfChannels, the samplerate, ...
then NicAudio send a stream with the first frame parameters and the frames not compliant are replaced by silence.
If first frame is 2.0 commercials the 5.1 audio movie was silenced.
The audio streams must be splitted in coherent fragments. You can use DelayCut.

[Acid_Reign]

AviSynth can't handle audio streams than change the NumOfChannels, the samplerate, ...
then NicAudio send a stream with the first frame parameters and the frames not compliant are replaced by silence.
If first frame is 2.0 commercials the 5.1 audio movie was silenced.
The audio streams must be splitted in coherent fragments. You can use DelayCut.
Thank you. I used DGIndex to select only the part I wanted (with 5.1 audio) and it fixed the problem.