Somebody, please give me a job. I have nothing to do at the machine
shop except analyze math problems while running the CNC. Well, later,
shouldn't you be in a university with that kind of maths? you might
hurt someone.
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more errors whoops!
sinc(t)=sin(pi*t)/t
sinc(t)=sin(pi*t)/(pi*t)
(2/N)*[1+sum{ j=1:N/2 ; cos(pi*t*fs*j) }
(2/N)*[0.5+sum{ j=1:N/2 ; cos(pi*t*fs*j) } ]
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You can however upsample your signal first, then use a lowpass filter,
then downsample again. See this chapter in The Book for more info:
http://crca.ucsd.edu/~msp/techniques/latest/book-html/node194.html
and J07.oversampling.pd
i kind of hoped that tabread4 would do some kind of
2007/3/6, Peter Worth [EMAIL PROTECTED]:
i kind of hoped that tabread4 would do some kind of interpolation
which might magically stop aliasing..
As Frank mentioned, it does, but interpolation in itself is a heavily
overloaded word. Consider linear interpolation: it is, it is done, but
during
2007/3/6, Peter Worth [EMAIL PROTECTED]:
i kind of hoped that tabread4 would do some kind of interpolation
which might magically stop aliasing..
hmmm could we have some way of interpolating, just short of magic,
that would stop aliasing during downsampling?
tabread4~ takes an input of
2007/3/2, hard off [EMAIL PROTECTED]:
peter,
use this construction:
[phasor~]
|
| [r arraylength]
| |
[*~ ]
|
[tabread4~ arrayname]
where, arraylength is the value obtained from the outlet of
[soundfiler] when you load your sample.
the speed of the phasor should be set at ( 44100
Hallo,
Denis Trapeznikoff hat gesagt: // Denis Trapeznikoff wrote:
2007/3/2, hard off [EMAIL PROTECTED]:
use this construction:
[phasor~]
|
| [r arraylength]
| |
[*~ ]
|
[tabread4~ arrayname]
where, arraylength is the value obtained from the outlet of
[soundfiler] when
Could aliasing be avoided by using a multi-pole low pass filter at
nyquist before sending the signal to the dac?
~Kyle
On 3/5/07, Frank Barknecht [EMAIL PROTECTED] wrote:
Hallo,
Denis Trapeznikoff hat gesagt: // Denis Trapeznikoff wrote:
2007/3/2, hard off [EMAIL PROTECTED]:
use this
Hallo,
Kyle Klipowicz hat gesagt: // Kyle Klipowicz wrote:
Could aliasing be avoided by using a multi-pole low pass filter at
nyquist before sending the signal to the dac?
No: Alias frequencies aren't too high, they are wrong frequencies,
that have been mirrored at the Nyquist border. As soon
I don't want to change the subject (and if needed, we can start a new
thread), but as this might be a related topic, here it is...
What would it take to turn this into a Slowdown abstraction?
Basically, I am interested in slowing down the tempo of a sound, but
NOT changing the pitch...
Am I
Helpfile B.14.sampler.rockafella may be a good place to start.
On Mon, 5 Mar 2007 14:15:26 -0600
Mike McGonagle [EMAIL PROTECTED] wrote:
I don't want to change the subject (and if needed, we can start a new
thread), but as this might be a related topic, here it is...
What would it take to
there's also G09.pitchshift.pd, which i've not looked at beyond simply
triggering it. not fft but two playheads. drumloop timing is a bit messy and
it looks different in construction than your patch (though i don't know what
happens inside [susloop~]). i'm looking forward to getting on with
on a related note, could someone answer a very basic question for me?
what's the cheapest (in my effort and cpu effort) way to simply change
the playback speed of some audio in an array? i.e. changing pitch and
speed.
at the moment i'm looping something with tabplay, but want to make a
slider
robbert van hulzen wrote:
well then, thanks for doing my homework! ;)
nice one. (i like how it gives a kind of flanger effect on the drum loop i
tried it with, almost more like a filter, because of the high noise portion
of the signal, i suppose.)
cheers, robbert
The patch is just a little
well then, thanks for doing my homework! ;)
nice one. (i like how it gives a kind of flanger effect on the drum loop i
tried it with, almost more like a filter, because of the high noise portion
of the signal, i suppose.)
cheers, robbert
Thomas Mayer [EMAIL PROTECTED] wrote:
Hello,
after
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