On Sun, 17 Feb 2008 05:50:53 +0100, Ichthyostega <[EMAIL PROTECTED]>
wrote:
Each object is "put" into the timeline by a Placement object, which
internally maintains a chain of conditions describing how this object
has to be placed. This is a very open concept, because "to place"
can mean various different things:
- put it on a specific track
- anchor it at a fixed, absolute time position
- anchor it relative to another object (clip, label,....)
- anchor it relative to a fixed position within the source material
of another clip (e.g. good old clapperboard for sound sync)
- place it on a fixed output layer
- place it on a layer relative to the layer of another clip (e.g.
"above clip Y")
- place it at a fixed sound pan position
Here I would like to remind that sound pan position can be much
more than the one-dimentional left/right in stereo mixers and
the two-dimentional channel positioning shown in Cinelerra.
There is this thing called Ambisonics,
http://en.wikipedia.org/wiki/Ambisonics
where the sound can be positioned _anywhere_,
http://www.ambisonic.net/ambimix.html
typically expressed in spherical polar coordinates and a distance.
Live recordings in Ambisonics can be done with a four-channel
recorder and a special four capsule microphone:
http://www.core-sound.com/TetraMic/1.php
There is also the mid-side stereo mixing, especially suitable
where mono compability is a concern.
http://www.paia.com/ProdArticles/msmicwrk.htm
--
Herman Robak
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