12 Sep
2005
12 Sep
'05
12:04 p.m.
On Mon, 2005-09-12 at 09:00 -0400, Paul Davis wrote:
in my understanding, dithering has nothing to do with
downsampling.
Yup - my bad. I was confusing terms. Thanks for the correction.
sample rate changes can be handled by a
variety of interpolation techniques, which exist in a plane defined by
two axes: quality and CPU cycles per sample. you can do cheap linear
interpolation and get a pretty unpleasant effect, or use more cycles for
a better result.
Thanks for stepping in and clearing this up. Interpolation is the word
I was originally looking for. Too many uncaffeinated brain cells too
early in the morn'
dithering comes in its own varieties, but they are
not
arranged on a simple 2D axis the way that interpolation is. AFAIK, so-
called "pow-f" dithering is spoken of the most highly at present, but
relies on a proprietary (patented, too, i think) algorithm.
Very interesting stuff. Thanks for the help.
Greg