by Magnus Jonsson
on this list in May 2002, and incorporated into SuperCollider in March 2003.
http://music.columbia.edu/pipermail/music-dsp/2002-May/049056.html
https://github.com/supercollider/supercollider/commit/7bc21edf596b2b3c8324880fbbbacdb342b85272
--
--- james
wouldn't using varying ZCR be defeated by frequency modulated or bell tones?
One could also craft a very noisy signal with a perfectly periodic ZCR.
James McCartney
> On Feb 19, 2016, at 04:49, Dario Sanfilippo
> wrote:
>
> Hello everybody.
>
> Following on a disc
ed on fast-generation of pink noise of moderate quality and a
> > relatively narrow bandwidth. I'm sort of looking for the other side of
> > things... what's the most ideal pink noise I can generate en masse?
> >
> > Thanks,
> > -Seth
>
>
> --
>
> r
>The amplitude at 20 Hz of the noise will be 20*log10(2^(20/0.447)) =
-113 dB
should be:
The amplitude at 20 Hz of the noise will be 20*log10(20/0.447) = -113
dB
answer is correct, expression was wrong.
On Mon, Apr 11, 2016 at 4:42 PM, James McCartney wrote:
> Yes, you don
tios,
> which is why the magnitude response for a pinking filter is 1/sqrt(f) or -3
> dB per octave.
>
>
>
>
> Original Message
> Subject: Re: [music-dsp] High quality really broad bandwidth pinknoise
> (ideally more
into -1 to 1.
4x-3 transforms the interval .5 to 1 into -1 to 1.
plot:
http://i.imgur.com/8wvnFAE.png
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In the same vein: a family of smoothed sawtooth waves
f(x) = x - x^a
evaluated from x = -1 to +1
where 'a' is an odd integer >= 3.
the greater 'a', the greater number of harmonics.
plot:
http://i.imgur.com/dqQQItT.png
On Fri, Jun 10, 2016 at 6:31 PM, James McCartne
On Tue, Jul 5, 2016 at 2:42 PM, James McCartney wrote:
> In the same vein: a family of smoothed sawtooth waves
>
> f(x) = x - x^a
>
changing this to :
f(x) = x - sgn(x)*abs(x)^a
allows 'a' to be continuously variable, not just an odd integer.
sgn(x) is the signum fun
> On Aug 8, 2016, at 23:43, Uli Brueggemann wrote:
>
> 2016-08-09 4:05 GMT+02:00 James McCartney :
>>
>>
>>> On Tue, Jul 5, 2016 at 2:42 PM, James McCartney wrote:
>>> In the same vein: a family of smoothed sawtooth waves
>>>
>>>
On Mon, Aug 8, 2016 at 11:56 PM, Uli Brueggemann
wrote:
>
> 2016-08-09 8:49 GMT+02:00 James McCartney :
>
>>
>>
>> On Aug 8, 2016, at 23:43, Uli Brueggemann
>> wrote:
>>
>> 2016-08-09 4:05 GMT+02:00 James McCartney :
>>
>>>
>&g
OK, I didn't know how you were defining mirror().
On Tue, Aug 9, 2016 at 6:09 AM, Tito Latini wrote:
> On Mon, Aug 08, 2016 at 07:05:17PM -0700, James McCartney wrote:
> > On Tue, Jul 5, 2016 at 2:42 PM, James McCartney
> wrote:
> >
> > > In the same vein: a f
a line, it is the
integral of the modulated frequency.
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extends to all real N > 0 by using absolute value :
f(x) = x / (1+abs(x^N))^(1/N)
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On Wed, Dec 14, 2016 at 11:03 AM, James McCartney wrote:
>
>
> On Wed, Dec 14, 2016 at 8:47 AM, Ethan Fenn
> wrote:
>
>>
>> Another interesting family of curves is given by f(x) = x / (1+x^N)^(1/N)
>> for even N. The fractional power is kind of annoying, but
On Wed, Dec 14, 2016 at 11:07 AM, James McCartney wrote:
>
>
> On Wed, Dec 14, 2016 at 11:03 AM, James McCartney
> wrote:
>
>>
>>
>> On Wed, Dec 14, 2016 at 8:47 AM, Ethan Fenn
>> wrote:
>>
>>>
>>> Another interesting family of
e off list as well.
>
> Best,
>
> Arthur
>
> www.arthurcarabott.com
>
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--- james
On Mon, Apr 17, 2017 at 5:27 PM, James McCartney wrote:
> I remember Morton Subotnik demonstrating the singing the envelope thing
> with his ghost box electronics back in the 80s.
>
I found some info on it :
http://scholarworks.sjsu.edu/cgi/viewcontent.cgi?article=4861&conte
o the
> site owner reaching his/her bandwidth limit. Please try again later.
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I made a Desmos graph of the formulas from James A. Moorer's paper, The
Synthesis of Complex Audio Spectra by Means of Discrete Summation Formulas
https://www.desmos.com/calculator/q1m3hfiuo7
paper: http://www.jamminpower.com/PDF/Sine%20Summation.pdf
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--- james mcca
Audio Software Engineer
Core Audio Software Engineer
go here :
https://jobs.apple.com/us/search?#&ss=audio%20&t=0&so=&lo=0*USA&pN=0
(I'm not a recruiter, so don't contact me.)
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