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Audio Pass-through?


JerD

Question

Is there any profile in Toast 9 that supports audio pass-through? The only ones I've found have that option greyed out. I have a file I'm encoding for AppleTV that contains a dolby digital 5.1 track and I'd like to keep it intact.

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Good question. Prior to Toast 9 I read where some people used MPEG Streamclip to demux the audio and video streams, used Toast to encode the video for AppleTV and then used QuickTime Pro to add the 5.1 audio track back. I think I saw this described after searching for 5.1 in the AppleTV forum at discussions.apple.com. That still may be what you have to do.

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Hmmm I'll have to give that a shot. I didn't realize QT Pro could mux files. I've been muxing the DD5.1 audio & toast video output tracks back together with ffmpeg (command line), and it introduces distortion in certain scenes (major blocking, like part of the video is highly compressed, even though I'm not recompressing the video with ffmpeg). The separate video track before being muxed plays fine....

 

 

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