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  1. Member
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    Do you know a software that can make a lot wav files fit in Cd, having to reauthor them automatically, with a lower bitrate, when ever necessary?
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  2. Member Cornucopia's Avatar
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    Couple of questions:

    1. When you say CD, do actually mean CD (as opposed to DVD)?

    2. Do you mean AudioCD, DataCD (CDROM), or VideoCD?

    If, as I'm guessing you mean actual CD, AudioCD. Then NO, you can get 74, 80 or a little bit more (overburning or using CD90's/99's) minutes on disc--And that's it! It's stereo, 16bit, 44100Hz, Uncompressed (LPCM). No other options.

    If it's a DataCD, you could compact the wav's into a zip file (or rar, ace, etc) or you could convert to losslessly-compressed format (monkey's, shorten, Apple lossless, etc.) But that's about it (and that'll give you ~double the length of normal LPCM waves). Otherwise, you don't really have a "wav" file anymore, you've got mp3, aac, ac3, etc., and you get compounded loss is you were to re-encode to a still lower bitrate later on.

    Please clarify what you really are trying to do.

    Scott
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  3. Member
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    Thanks a lot, it was an audio Cd.
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  4. Member
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    Do you know a tool to convert a "WAV - 6ch - 48kHz" to a "stereo, 16bit, 44100Hz, Uncompressed (LPCM)" ?
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  5. Member Cornucopia's Avatar
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    You didn't say what bit depth you started with (16, 20, 24 bit?), but I'm guessing 16.

    You have 2 main things to do--Downmix (6ch-->2ch) and SampleRate Downconvert (48kHz-->44.1kHz).

    Open the 6ch wave(s) in Vegas, Maven3D, or some similar app that fully supports 5.1 audio. Apply steering of the Center,Surround, and LFE channels to what you want in the stereo. Then export (while performing a SRC at the same time).

    Or, you could try one of those BeSweet-type processes that does the downmix and downsample. This may allow you to fold the surrounds in with the correct matrixing, so that it conforms to Dolby Surround/ProLogic/PLII. That would retain some sense of "surroundedness". You may want to downsample (SRC) first, before doing the downmix in that case, so that the phase coefficients are more accurate. Of course, some of that would probably get lost if you later decide to have a compressed version. In that case, I would go back to the source and compress a 5.1 ac3, etc. from it.

    Scott
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  6. Member
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    The bit depth I guess is 16, and eventhough was shown me 6ch, I guess it is a 2ch one for sure. I didn't try to use the BeSweet yet, I tried the Audacity, and when I changed the 48 khz to 44,100 Hz the music started playing slowly.
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  7. Banned
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    HeadAC3he can do a good job of converting 48 Khz to 44.1 Khz. It can also be used to convert 6 channel AC3 to 2 channel WAV. I have a couple of audio CDs I made from concert DVDs using it and they sound fine.
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  8. Member
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    Ok, I used another soft that worked, but thank you anyway.
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