24 Dec
2007
24 Dec
'07
8:56 p.m.
Hi everyone!
I need some reverb (impulse response) from a studio with a drumkit, so the
vibrating snare and reverbarting toms are in there. Can anyone generate such a
thing or has anyone a suggestion how to fake it in a satisfactory way? I could
use csound to produce the fake.
I don't have a real studio, nor a real drumkit, nor can I use one of Fons'
nice new tools that do impulse response generation, because of their graphical
nature.
I'm glad and eager for any nice hint!
Kindest regards
Julien
--------
Music was my first love and it will be my last (John Miles)
======== FIND MY WEB-PROJECT AT: ========
http://ltsb.sourceforge.net
the Linux TextBased Studio guide
======= AND MY PERSONAL PAGES AT: =======
http://www.juliencoder.de
25 Dec
25 Dec
12:31 a.m.
On Tue, Dec 25, 2007 at 01:56:18AM +0100, Julien Claassen wrote:
Hi everyone!
I need some reverb (impulse response) from a studio with a drumkit, so the
vibrating snare and reverbarting toms are in there. Can anyone generate such a
thing or has anyone a suggestion how to fake it in a satisfactory way? I could
use csound to produce the fake.
I don't have a real studio, nor a real drumkit, nor can I use one of Fons'
nice new tools that do impulse response generation, because of their graphical
nature.
I'm glad and eager for any nice hint!
Kindest regards
Julien
That's great. Studio engineers go to such great lengths to remove that kind of audio
noise, and here we are trying to artificially simulate it.
-ken
4:14 a.m.
Hi!
Ken, you knwo we are a little destructive sometimes... :-) (vynil goes along
the same dark, but interesting path :-))
I think even the snare-rattling could be managed with an impulse response.
Because it also just responds to some frequencies. Well maybe caught in an IR
it's a little static. But that's fine!
Kindest regards
Julien
--------
Music was my first love and it will be my last (John Miles)
======== FIND MY WEB-PROJECT AT: ========
http://ltsb.sourceforge.net
the Linux TextBased Studio guide
======= AND MY PERSONAL PAGES AT: =======
http://www.juliencoder.de
4:31 a.m.
On Dec 25, 2007 12:14 AM, Julien Claassen <julien(a)c-lab.de> wrote:
I think even the snare-rattling could be managed
with an impulse response.
Because it also just responds to some frequencies. Well maybe caught in an IR
it's a little static. But that's fine!
Kindest regards
Julien
One thing about linear systems though, is that the output doesn't have
any frequency components that aren't in the input signal, it just
scales and phase-shifts frequency components according to the
frequency response. A snare rattle can generate wideband-ish noise in
response to a single frequency that makes the snare head vibrate, so
it's a nonlinear effect.
Hmm...maybe you could use an IR just of the snare drum to get the
resonant frequencies without the snare rattle and then use an envelope
follower on that to control the amplitude of some sort of snare-rattle
sound, so that when the snare is resonating it also makes a
rattle/buzz.
-spencer
6:26 a.m.
Indeed, I didn't think about the rattling not being covered by the
source-frequencies. I see it gets a bit more nasty than I thought.
Kindest regards
Julien
--------
Music was my first love and it will be my last (John Miles)
======== FIND MY WEB-PROJECT AT: ========
http://ltsb.sourceforge.net
the Linux TextBased Studio guide
======= AND MY PERSONAL PAGES AT: =======
http://www.juliencoder.de
7:07 a.m.
Am Dienstag, 25. Dezember 2007 schrieb Julien Claassen:
Indeed, I didn't think about the rattling not
being covered by the
source-frequencies. I see it gets a bit more nasty than I thought.
To me it sounds like the source for another application/plugin/pd-patch:
Simulating a studio with all its instruments noises polluting the atmosphere.
Maybe after running that app for to long with to much level the additional
noise of the neighbors bumping on the floor/ceiling gets added? :-)
Merry Christmas,
Arnold
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27 Dec
27 Dec
11:47 a.m.
On Tue, Dec 25, 2007 at 12:31:05AM -0800, Spencer Russell wrote:
One thing about linear systems though, is that the
output doesn't have
any frequency components that aren't in the input signal, it just
scales and phase-shifts frequency components according to the
frequency response. A snare rattle can generate wideband-ish noise in
response to a single frequency that makes the snare head vibrate, so
it's a nonlinear effect.
Well, it *is* possible to do this using IRs and convolution, by
having many convolutions in parallel: one working on the signal
x(t), one on x(t)^2, x(t)^3, etc. This allows simulating a time-
invariant nonlinear system. Not so easy in practice. Farina has
a paper on it.
Resonance of the toms: delay + high-Q resonance.
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Laboratorio di Acustica ed Elettroacustica
Parma, Italia
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6 comments
5 participants
participants (5)
-
Arnold Krille -
Fons Adriaensen -
Julien Claassen -
Ken Restivo -
Spencer Russell