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View Full Version : decode dolby wav to new wav?

BabaG
5th July 2008, 21:53
i have some dolby encoded wav files and need to decode them
to a new wav file so the new file has no dolby. is there a free
or oss way to do this? these are files i made some years ago
from my own material, not copyright material.

thanks,
BabaG
EPiPH0NE
6th July 2008, 03:52
Maybe try eac3to:

eac3to source.wav new.wav
nautilus7
6th July 2008, 12:24
I don't think eac3to supports ac3-wav files. Only dts-wav.

If the format of this track is similar to dts-wav (dts data into wav container), you can try this: change extension to .ac3 and run the track though delaycut. It will remove the wav header and leave the ac3 data untouched. Then you can use eac3to or any other program to decode ac3 to wav: eac3to input.ac3 output.wav
madshi
6th July 2008, 12:30
I don't think eac3to supports ac3-wav files. Only dts-wav.
If I get a ac3-wav sample (or better a couple of samples) I might add ac3-wav support to eac3to.
nautilus7
6th July 2008, 12:31
I don't have any... :(
madshi
6th July 2008, 12:32
Well, obviously BabaG would be in a good position to provide samples... :)
tebasuna51
6th July 2008, 19:58
If I get a ac3-wav sample (or better a couple of samples) I might add ac3-wav support to eac3to.

Free DD and DTS wav samples in http://www.sr.se/cgi-bin/mall/artikel.asp?ProgramID=2446&Artikel=740607
madshi
6th July 2008, 21:46
Free DD and DTS wav samples in http://www.sr.se/cgi-bin/mall/artikel.asp?ProgramID=2446&Artikel=740607
Thanks. The next eac3to version (due out in a few minutes) will at least support those ac3wav files from that site.
BabaG
6th July 2008, 22:08
i'll pm you to get contact info for sending some samples
when i get back to that box later today or tonight.

thanks,
BabaG
tebasuna51
6th July 2008, 22:23
BTW you can extract the ac3 file with the old BeSplit:

BeSplit -core( -input Dolbywav.wav -prefix track -type ddwav -fix )

the output is a track01.ac3 (less size than wav) that can be decoded with eac3to or others free tools (BeLight, BeHappy, Foobar2000, ...)
BabaG
7th July 2008, 17:29
i should have specified earlier but it didn't occur to me; the files
are dolby 'A' encoded, not dolby digital. i need something that can
decode dolby 'A'.

thanks,
BabaG