| Thanks to Terry McDermott and Job van Zuijlen for making things clearer for
me about ampdb.
As I said in my original message, I was counting on some miscalculations I
might have done.
Anyway, it's clear that the manual is not precise, misleadingly stating that
the reference is 90dB = 32000.
Even if the deviations are insignificant, as I said, it's always better to
have a good idea of how opcodes work and known exactly what to expect.
luis
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Date: 15 May 99 14:35:03 America/Fort_Wayne
From: Sherlock
To: csound@maths.ex.ac.uk
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When you use format 0 MIDIs with Csound, is there any way to get more
instruments to play? All I wind up with is a stringed instrumed (with old=
er
opcodes) and I would like to hear a series of others. I am taking format =
1
midis, converting them to MIDI format 0m and making a wave file from form=
at 0
using Csound. Rioght now, I am using a stringed instrumement that I picke=
d up
from Pinkston's web site. I think.
I made modifications to it so it could work with MIDI.
To seek is to find. =
To Find is to Seek.
So what? Gimme a Windows based computer, and I'll try Linux instead.
____________________________________________________________________
Get free e-mail and a permanent address at http://www.netaddress.com/?N=3D=
1
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Date: Sat, 15 May 1999 17:14:40 +0200
From: Gabriel Maldonado
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Hi all,
update your HTML bookmarks
The new url is:
http://web.tiscalinet.it/G-Maldonado/download.htm
Happy csounding
--
Gabriel Maldonado
http://web.tiscalinet.it/G-Maldonado/home2.htm
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> I dunno about this specifically, but one other "perfect
> interpolation" would be to compute the DFT/FFT of the
NO. You'll get a perfect interpolation of a hypothetical =
periodic signal of which the FFT is the transform. That
signal is *significantly* different from the one you are =
actually taking the transform of (which is why people have
thought so much about windowing). It is NOT the original.
In short, =
IDFT(DFT(x(=B7))) =3D x(=B7) =
if and only if x(=B7) is harmonic.(which it virtually never is).
> That's what I used (for non realtime uses) and worked perfectly.
You must either write the worst kind of new age music, have an 2-bit
system or should go see your ENT specialist... :)
> This sinc method sounds interesting though, since it is
> supposed to be faster (o instead of o*log (FFT case)).
You can't compare it. Sinc interpolation has to be performed
for every sample of the TARGET sample rate, and for a number
of samples to the left AND right, which linearly increases the
quality of your signal. So, interpolating from 10 to 100 kHz =
costs 1000 times the cycles needed to interpolate from 10 down to 1.
Thus, time here is a linear combination of 3 variables (source =
rate, target rate and sinc width) as opposed to 2 vars in the FFT
case (sample rate and window width). Big-O notation doesn't =
make sense here since you won't want to increase your width past
20 or so anyway.
> And moreover, doesn't ask you to compute the following
> samples either.
no. you need equal amount of samples on both sides.
-Tobias
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From: Tobias Kunze
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> > I dunno about this specifically, but one other "perfect
> > interpolation" would be to compute the DFT/FFT of the
>
> NO. You'll get a perfect interpolation of a hypothetical
> periodic signal of which the FFT is the transform. That
argh. i edited this sentence so often that it ended up being
wrong... Right is that an n-point IDFT will give you an n-point
signal, just as an DFT of an n-point signal will give you--you
guessed it--an n-point DFT. Hence, you will still need to interpolate.
-Tobias
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To: csound@maths.ex.ac.uk
From: Rinaldi
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Hallo CSounders!
I'm Michelangelo Rinaldi, a 24 years old italian musician.
I'm using DirectCSound 2.700 and Winsound 3.53. It's about one year that
I'm working on CSound but still most of my time goes to "analogic" music: I
play piano, oboe and english horn.
In this moment I'm interested in live-electronics. Can you indicate me a
list of orc-sco-csd devoted to real time execution?
And also, if you have compostion for my instruments alone, with tape or
with live-electronics I could be interested in playing them here in Italy.
Bye
Michelangelo
|