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Old 30th January 2010, 14:08   #1  |  Link
Cozmec
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AAC to AC3

I have some mp4 movies with AAC 5.1 audio.

My player does not support aac decoding though (WD TV LIVE)
so I have extracted the mp4 AAC (5.1) audio track and I want to convert it to AC3 (5.1) and remux it again with the video. Is there an easy way? I haven't found anything yet. Is there another way I can get it to play in my player?

Last edited by Cozmec; 30th January 2010 at 15:38.
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Old 30th January 2010, 14:52   #2  |  Link
user822
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the Software eac3to can do so

its a commandline tool:
eac3to.exe input.aac output.ac3

the problem with 5.1 aac is known in the Internet, only working solution up to now seems to be your way with ac3!
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Old 30th January 2010, 15:32   #3  |  Link
Cozmec
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Thanks a lot for the fast response!

The problem is my track is in ".mp4" Will there be a problem?

And will i have the channel mix up I've read somewhere (Like Left being center and center being suround right etc.)
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Old 30th January 2010, 15:47   #4  |  Link
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Quote:
Originally Posted by Cozmec View Post
I have some mp4 movies with AAC 5.1 audio.
Where did you get those movies?
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Old 30th January 2010, 16:24   #5  |  Link
Cozmec
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Quote:
Originally Posted by neuron2 View Post
Where did you get those movies?
From a friend. Does this matter in any way? They are not pirated if that's what you ask.

Last edited by Cozmec; 30th January 2010 at 16:26.
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Old 30th January 2010, 16:59   #6  |  Link
Cozmec
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Quote:
Originally Posted by tebasuna51 View Post
AAC to AC3

- Foobar2000

- BeHappy-AviSynth

- Command line:
faad -w -b 24 input.aac | aften -readtoeof 1 -pad 0 -b 640 - output.ac3
or
neroAacDec -if input.mp4 -of - | aften -readtoeof 1 -pad 0 -b 640 - output.ac3

I ve tried BeHappy but I lost myself. What exactly is the option to convert 5.1 AAC to 5.1 AC3

And by command line. Do you mean eac3to??

Last edited by Cozmec; 30th January 2010 at 17:13.
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Old 30th January 2010, 18:10   #7  |  Link
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Originally Posted by Cozmec View Post
From a friend. Does this matter in any way? They are not pirated if that's what you ask.
Yes, it matters. Thread closed for rule 6 violation.
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