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6 channel FLAC
HTS
post Jun 21 2008, 01:14
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How do I rip the 6 channel audio from video DVDs into 6 channel FLAC? I tried to convert the AC3 into WAV then into FLAC, but it turned into 2 channels.
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j7n
post Jun 21 2008, 01:31
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Why would you want to convert lossy AC-3 to FLAC? Anyway AC-3 files can be decoded fine using Foobar2000, either by downmixing on-the-fly or not.
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HTS
post Jun 21 2008, 02:01
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QUOTE (j7n @ Jun 20 2008, 20:31) *
Why would you want to convert lossy AC-3 to FLAC? Anyway AC-3 files can be decoded fine using Foobar2000, either by downmixing on-the-fly or not.

Oh, so AC3 is not just another type of WAV? Like it's actually something like mp3?

That explains it, because I re extracted them, and found out that 95 minutes of sound is only 302 megabytes for 6 channels.

So is AC3 a compression it self? So the video DVD's audio is worse than CD audio in terms of per channel quality?

Is the 2 channel PCM also lossy or not lossy?

Thanks.
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MuncherOfSpleens
post Jun 21 2008, 02:39
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QUOTE (HTS @ Jun 20 2008, 21:01) *
Oh, so AC3 is not just another type of WAV? Like it's actually something like mp3?

That’s correct; AC3 is a lossy, compressed format much like MP3.

The stereo PCM track should be both lossless and uncompressed (like WAV). You’ll see a (size) benefit if you compress that with FLAC.

This post has been edited by MuncherOfSpleens: Jun 21 2008, 02:41
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HTS
post Jun 21 2008, 03:04
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QUOTE (MuncherOfSpleens @ Jun 20 2008, 21:39) *
QUOTE (HTS @ Jun 20 2008, 21:01) *

Oh, so AC3 is not just another type of WAV? Like it's actually something like mp3?

Thatís correct; AC3 is a lossy, compressed format much like MP3.

The stereo PCM track should be both lossless and uncompressed (like WAV). Youíll see a (size) benefit if you compress that with FLAC.

So did they just try to save space by using AC3 and not a lossless 6 channel audio?

Is AC3 better than stereo PCM even if it's lossless? I think it is because mine is at like 448 kbps, that is higher than the highest mp3 at 320k which is already considered transparent.

Do all video DVDs use AC3 or some lossy codec for 5.1?

Is DVD-Audio 448kbps too? I thought that DVD audio and SACDs are supposed to be higher fidelity than redbook CDs? Isn't it even worse then because it has lower bitrate than the audio CDs?

This post has been edited by HTS: Jun 21 2008, 03:12
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