eac3to is able to convert E-AC3 and TrueHD audio tracks to AC3 or FLAC.
Usage: eac3to src.eac3|evo|wav dst.ac3|flac|raw|wav [-options]
This tool can convert a 2.0 or 5.1 E-AC3 or a 5.1 TrueHD track to AC3/FLAC.
Features:
- can show information about audio, video and VOB/EVO/(M2)TS files
- can decode and encode various audio formats
- can remove dialog normalization from AC3, E-AC3, DTS and TrueHD tracks
- can extract AC3 stream from Blu-Ray TrueHD/AC3 tracks
- can extract TrueHD stream from Blu-Ray TrueHD/AC3 tracks
- can extract DTS core from DTS-HD tracks
- can remove DTS zero padding and repair outdated DTS-ES headers
- can apply positive or negative audio delays
- can reduce bitdepth of decoded audio data by using TPDF dithering
- can resample decoded audio data (using "r8brain")
- can apply/reverse PAL speedup on decoded audio data (using "r8brain")
- can demux all video and audio tracks of an EVO/VOB/(M2)TS source file
- can join/rebuild multiple EVO/VOB files
- can remux the video track of a EVO/VOB/(M2)TS source to Matroska
eac3to sourcefile[+sourcefile2] [trackno:] [destfile|stdout] [-options]
Examples:
- eac3to source.pcm destination.flac
- eac3to source.thd destination.flac destination.ac3
- eac3to source.evo 2: destination.eac3 3: destination.flac
- eac3to feature_1.evo+feature_2.evo movie.mkv
- eac3to 00001.m2ts movie.mkv
If you prefer a graphical user interface, heres a GUI made by The_Keymaker:
http://madshi.net/EAC3toGUI.zip
Whats New in version 2.39:
- simple audio transcoding was broken
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