9 Oct
2002
9 Oct
'02
8:47 p.m.
On Wed, Oct 09, 2002 at 04:36:15 -0600, Darren Landrum wrote:
format the app can handle. (As an aside, an open
source developer on the Mac
had claimed to write a dithering algorithm in BASIC that tests and works
better than Apogee. I will try to track this down again, and let everyone
know where it is, if they are interested.)
I've seen it. Some of the algoriths he uses are obviously wrong (ie. dont
do what he claims). I didn't bother analysing his anti A weighted dither -
theres not a lot of point. Its all down to getting a curve that is the
inverse of the human hearing curve.
There is a decent anti-A dither (5th order IIRC) in jack.
sample_move_dither_shaped_*(), memops.c
Some poeple claim that the error feedback is more inmportant than dither
anyway <shrug>.
- Steve