Rohit wrote:
> How is 3D sound different from Stereo sound? Especially if you are using
> the same two speakers?
Rohit: 3d sound = 3 dimensional sound ie, sound from everywhere! Stereo
= 2 channel sound ie, 2 speakers emit sound which is not monoaural to
create a "stereophonic" effect.
3D sound is usually created by using external decoders with pre encoded
audio material like DVD'd, LD's HDCD'd and VCD's. Dolby Digital, Dolby
Digital Ex (created specially for STAR WARS:TPM by Dolby and George
Lucas), Dolby Stereo, SDDS and DTS are some popular theatrical surround
formats. To produce true 3D sound, u *need* more than 2 set's of
speakers, usually 6 -
Centre for dialogues
Main left
Main Right
Surround Right
Surround Left
Subwoofer channel
SDDS uses 8 distinct channels for even more realistic ambience but it is
not available for consumer use!
Commonly, when companies use the term 3D surround, they are actually
referring to "virtual surround" which "tries" to create a surround
ambience by just using 2 speakers. If u have listened to true surround,
virtual surround is pure junk, a sales gimmick. But there are companies
doing extensive research on creating true surround with just 2 speakers.
I have stopped following developments in the audio industry due to lack
of time so can't comment on their current status!
> It definitely increases load on the CPU that I know...
U will need a dedicated hardware decoder.
> Anybody? A detailed answer will be welcome.
Want to know more??? I can tell u more! ;-)
-- Shanu
- - - - - - - - - - - - - - - - - - - - - = = (SHANU) = = - -
St. Albert's College Debian/GNU Linux
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