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5.1 Surround/AC3/Doubly

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Ok.. I''ve spent the last 3 hours trying to figure this out.. how do you encode an AC3 or surorund-sound mp3/ogg/wav in 5.1? I use the ASIO driver to create my 5.1 surround sound music, then I used the creative recorder to record it.. Upon playback, it is indeed 5.1 surround sound recorded.. but it does not let me save as anything but mono or sterio...... Is there something I can download to allow me to encode as a surround sound format?

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I dun think MP3 was ever meant to compress 5.1. I''m not too entirely sure if it''s possible to encode anyway or how. Just think about it, the point of compression is to make a little file. Even compressed, a 5.1 file is 3 times as large as regular stereo files.

As well, compression works of this lovely idea called psychoacoustics. In other words it gets rid of everything that we can''t hear, or don''t think we can hear. As well, it converts sections of music from stereo to mono. This is all well and good, involving math and such that most fourth year bachelor of science students would be loathe to touch, for a stereo file. Now add in three more channels and a subwoofer I don''t think the human brain can handle those kind of equations.

I realize that I have been no help, and do really hope that someone else comes along and makes an even bigger ass of me :D

RM

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Guest Anonymous Poster
You can use something like [url=http://mediasoftware.sonypictures.com/productinfo.asp?product=vegasdvd]Vegas[/url] to mix a 5.1 track (used to be made by Sonic Foundry, bought out by Sony). It can export to AC3.

MP3 certainly can''t do surround sound, however ogg vorbis is capable of it... I''m not sure if it''s actually been developed/enabled in the codec yet, but it is definitely in the [url=http://www.xiph.org/ogg/vorbis/doc/vorbis-spec-intro.html]spec[/url].

But back to the original posters question.. You probably need to buy a software package that will allow you to mix and save 5.1 tracks. Sonar might do it, but don''t quote me on that.

I''m not aware of anything you can download for free (but that doesn''t mean there isn''t something...).

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To bake your own AC3 files get hold of BeSweet and AC3Machine from Doom9.net. I''m not sure about the legality of distributing AC3 files created by an un-licensed Dolby encoder, so bear that in mind.

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My main thing is just saving as surround.. if worse comes to worse.. I can always use Direct3D and play 5 mp3''s at once in 5 different places.. gay I know but hey..

I''m trying out what ou just linked me, and as far as unlicensed encoders *shrugs*, I''m going to end up in jail for one thing or another thanks to software patents.. so I really don''t care :D

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