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How to convert True-HD?

L

lixe

macrumors member
Original poster
Jan 26, 2010
57
1
Hello,
I know that there is a script converting a dts stream to ac3 (mkvdts2ac3), but what should I do if I only got a true-hd stream? For example if I have a mkv with VC1 video and True-HD audio and I want to convert it to a 720p mp4 with ac3 5.1 and aac audio, how could I do that on a mac? I think handbrake will encode the video, but what about the audio stream?

Hope anyone can help me :)
 
L

lixe

macrumors member
Original poster
Jan 26, 2010
57
1
I consider buying one of the new appletvs and as far as I know it will only play AC3 5.1? So I would have to convert the True-HD stream.
 
B

bucksaddle

macrumors 6502
Dec 4, 2008
295
44
lixe said:
Hello,
I know that there is a script converting a dts stream to ac3 (mkvdts2ac3), but what should I do if I only got a true-hd stream? For example if I have a mkv with VC1 video and True-HD audio and I want to convert it to a 720p mp4 with ac3 5.1 and aac audio, how could I do that on a mac? I think handbrake will encode the video, but what about the audio stream?

Hope anyone can help me :)
Click to expand...

As part of the specs for TRUE-HD it should also contain an ac-3 core for backwards compatibility. HandBrake can read this ac-3 substream that is embedded in every TrueHD track and provide passthru directly without any prior conversion.
This functionality might not be in the latest 0.94 release of HandBrake so you might need to grab a nightly from the site. Additionally, YMMV if your "sourced MKV" has been modified in anyway - I know this functionality works directly from my unencrypted Blu Ray rips
 
N

NightStorm

macrumors 68000
Jan 26, 2006
1,860
66
Whitehouse, OH
bucksaddle said:
As part of the specs for TRUE-HD it should also contain an ac-3 core for backwards compatibility. HandBrake can read this ac-3 substream that is embedded in every TrueHD track and provide passthru directly without any prior conversion.
This functionality might not be in the latest 0.94 release of HandBrake so you might need to grab a nightly from the site. Additionally, YMMV if your "sourced MKV" has been modified in anyway - I know this functionality works directly from my unencrypted Blu Ray rips
Click to expand...

The only exception to this would be TrueHD soundtracks from HD-DVD as they did not have the requirement of the integrated AC3 5.1 soundtrack.
 
L

lixe

macrumors member
Original poster
Jan 26, 2010
57
1
Thanks!

I will try that and let you know if it worked out!
 
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