![]() So if you want WAV and the whole-continuous movie/program, you’d need to extract to 8 separate WAV tracks. ![]() Note that single 8-channel WAV file for the whole movie/program would exceed the 2GB/4GB WAV file size limit. You’d have to extract/decode the audio to a format Audacity can open. I have no idea what DCA is, but again the packaging or disc menu may give you a clue. is DCA I’m assuming that is the ‘DTS encoded’ track. (On video, it’s usually called LPCM for linear PCM, but CDs and regular WAV files also use linear PCM.) PCM the same underlying format as WAV and the same underlying format as audio CDs. AC3 is a lossy-compressed format sometimes called “Dolby Digital”. (DVD/Blu-Ray players can down-mix the surround, but a separate “intentional” stereo mix may sound better than a down-mix.) It’s common to have a 2-channel stereo track for people who don’t have surround sound setups. Of course, you can listen for different languages. The Blu-ray menu should list the 5 audio options and give you a clue about what those tracks are, although they won’t be “numbered” and you might have to guess which is which. I’m assuming some of them are different languages. (Home theater receivers with HDMI can usually decode all of the Blu-Ray formats.)Īudacity reports 4 to 6 different encodings. I also don’t know of any software that can decode/extract the matrix channels, except maybe WinDVD or other real-time player software. ![]() I don’t know if FFmpeg can decode TrueHD or DTS HD and I don’t know of any other software decoders for those formats. Does the Blu-Ray packaging indicate those formats? LPCM, Dolby True HD and DTS-HD are capable of 8 discrete channels ( Wikipedia). I’m reading a blu-ray and I know its encoded with 7.1. Since none of those are 8-channels, the additional 2 channels for 7.1 are probably matrix encoded (like the old Pro Logic encoded into 2 channels). ![]()
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