Why only one "stereo" instead of three "6 ch ac3"?

[Teamplay]

Hello,

I have a H.264 video file *.mkv with tree audio tracks “6 ch ac3”.
When I cut a piece of this file and export it, I get a new video file with only one “stereo” audio track.

Which settings should I use, to get a new video file with the same three audio tracks “6 ch ac3” ?

Thanks in advance.

[Teamplay]

Is this still the only solution?

“…If you want to preserve your channels, you can add channels=6 in the Other tab of the export dialog.
You can replace the 6 with the number of channels you actually have. I had to look into the source code to see how it was implemented. The default value, when not specified, is 2…”

How Does One Export Audio In The Same Quality As Source?

DRM Better ask that question on Audacity forums. TO my knowledge both Shotcut and Audacity use FFmpeg to encode/decode many formats. And usually with audacity export you have to go to “external program” export and then usel ffmpeg directly (the audacity version of ffmpeg). Personally I have never been able to get DTS files (DCA ) out of Audacity… though maybe others have. And some say ffmpeg does not implement the full DTS specs. But have got dolby digital like files out (open source approxim…

[shotcut]

That (channels=6) will only preserve one audio track with 6 channels. Shotcut does not support using multiple audio tracks from a source clip. You have to choose one of them to work with in Properties > Audio tab. You could add the clip three times to three tracks in the Timeline and mix them all down to a single 6 channel audio track output. Be careful applying any audio filters that deal with channels such as Balance, Copy Chanel, or Pan as they do not handle more than 2 channels. These are the only options at this time.