[vorbis-dev] Multichannel Encoding
rpf1 at york.ac.uk
Wed Jan 24 01:35:41 PST 2001
On Tue, 23 Jan 2001, Richard W.E. Furse wrote:
> Ahhhh, there's my "welcome to the list" message... ;-)
> The quick answer is "yes, but not as much as I'd like" - which is a large
> part of why I'm here. I don't actually know too much about MP3 - I've read
> a few books but never got my hands dirty. As I understand it, less
> directional information is stored in frequency bands in which direction
> perception is weakest. I'm not quite clear about that and have less of a
> clue about what happens for upper frequencies. Please would you explain?
> I do have some ideas that I find quite exciting about ways to combine the
> MDCT with Ambisonics, but I've not done the maths formally enough to know
> that they will work - but now you know where I'm coming from! Do you know
> if this kind of approach has been investigated?
Do check out the York Ambisonics pages. Lots of info. We will be helping
on this effort when a good starting point (in time and dev wrt the
mainstream vorbis dev) has been set.
Yes, higher level, multichannel is of course in mind, not simply 4 channel
Hope this helps.
| Dr R P Fletcher (Rob) | Email R.Fletcher at york.ac.uk |
| Graphics Coordinator | Phone +44 (0)1904 433816 |
| Computing Service | Frontdesk +44 (0)1904 433800 |
| University of York | Fax +44 (0)1904 433740 |
| YORK YO10 5DD, UK | ICQ UIN 4019164 |
| URL: www-users.york.ac.uk/~rpf1/ Camera: /~rpf1/robcam.html |
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