<br><br><div><span class="gmail_quote">2007/1/19, Ivo Emanuel Gonçalves <<a href="mailto:justivo@gmail.com" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">justivo@gmail.com</a>>:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
You could look in the MIT library for audio engineers, I suppose. The<br>more important thing you'll need is probably proper equipment for<br>testing. </blockquote><div><br>But what about the implementation in Vorbis? As I understand, Vorbis supports 2-channel coupling. This implies all multichannel surround models must have 2^n channels. There may be two ways to deal with it:
<br><br>1. Implement n-dimensional channel coupling<br>2. Treat 5.1 dolby digital content as 4-channel surround + 2 independent channels (dialogs + LFE)<br>
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In the second case, we can use two models of quadrophony:<br>a) independent coupling for front and back channels, then coupling front with back<br>L -- R<br> |<br>L' -- R'<br><br>b) generate two perpendicular pairs of channels, which gives us possibility of mixing down the dialog channel into the Front. Both pairs could be coupled independently:
<br> Front<br>Left + Right<br> Back<br><br>What you people think about it? ;)<br>