10 Apr
2003
10 Apr
'03
3:27 a.m.
Hey Jeff!
(Hey it's the author of ReZound, we had talked a while back about moving
functionality into ReZound)
Just to let you know, I changed jobs, so my old email address
(david.durham(a)wcom.com) is no more. Use this email if you need to get me.
Well, it's good to see your fine functionality being moved into a lib.
:) I'm going to check it out right now.
Just letting you know that I noticed,
-- Davy
Jeff Welty wrote:
Hi all,
I've posted gwc-lib on:
http://gwc.sourceforge.net/
This is an EXTREMELY crude release from the standpoint of
documentation at least, (and it took *forever* to get this far), and
..., but I want to allow for input into the API.
It so far only includes the denoising algorithm. I do plan to include
the declicking and decrackling algorithms.
What got me motivated was 3 things:
1) Conrad Parker's intitial query into getting the algorithms into
sweep, and subsequent private emails helping me understand many issues.
2) Erik de Castro Lopo's release of Libsamplerate
3) Paul Davis' great post (spurred by libsamplerate) on
linux-audio-dev about how sharing these basic algorithms in a library
format has really made it a better world for all of us:
http://eca.cx/lad/2003/01/0006.html
In theory, there are only 2 files you need to look at to start playing
around - gwc_lib.h which describes the API (sorta), and denoise.c,
which is an example of how to use the algorithm. The basic idea is
you initialize the algorithm with parameters, feed it noise samples
via buffers, then start using it by writing and reading buffers.
There appears to be a small performance hit by using the buffers on
the order of 10%.
If you've a mind, please grab it and let me know how it goes. Fire
back ideas about the API. And, no, I'm not gonna LADSPA-ize it.
Cheers,
Jeff Welty