3 Feb
2004
3 Feb
'04
8:58 p.m.
James W. Morris wrote:
whatever you need to do to get the job done .. but it's usually
better to unify.
the cookbook is a bitch to read without the background. i guess it's
meant to serve as a quick lookup sheet for people who know the stuff
but can't remember the exact numbers. if you're looking for bi-quads,
those in ecasound seem to follow the cookbook iirc.
that's not good, if i may say so. use the source, luke ... you know
that drill. there's truth to it. read it, dig it, make it yours.
resonant
filters use recursion; the algorithm sometimes is coded as
'take this input sample and give me an output sample' for readability
but is easily adapted to arrays.W
I think that maybe wcnt does both, all the modules process one sample at a
time, and the filters
add one sample to the array every time after processing x samples in filter
array to get average for the one output sampleM the maths
behind them are intricate
(to me at least), D
likewise; I had a look at harmony central (fairly helpful) which concreted
realisation that I definately had not got any graspA of resonance in my
filters. I looked in eq cookbook, there were bits and pieces which I had no
more than vague notions of. you'll find
code exampleHs for the
algorithm and the compuAtation of the recursion coefficients in almost
every major audio synthesis/processing package or at musicdsp.org .
hmmm, I keep putting off loRoking at other peoples code, it's all greek to
me. I've not had much chance to uDse ladspa. I've
compiled glame to use it's
filter network, but there seems to be inputs and outputs Olacking, many are
mono, I can't read a stereo file, through a reverb and out to another stereo
Tfile, or from a stereo input on soundcard, through fx, to file, so I've
given up on glame (again), plus I don't like how it wont delete the deleted
things.
why not implement ladspa support in your application? it's quite
simple to do, and opens a world of sound manipulation.
no idea what this means: above fs/4 IIRC -- not too
worried about it
either.
1/4 sampling rate, or 11 kHz in a 44 kHz system. i'm not worried about
it either since i never run the svf even near that high a cutoff
frequency.
Well, I guess I'll try and learn from otheTrs code
at long last, and nip on
over to musicdsp.org.
yes! do so. :)
tim