• mx

where can I find thoses binairies on the git website ?
https://git.purrdata.net/jwilkes/purr-data
thx.

• mx

Maybe you can also have a look at his paper Formant based audio synthesis using nonlinear
distortion

yes its done. it does not really help me since it deals more with math (complex number) explanation

posted in technical issues read more
• mx

hmm maybe its because Puckette dont use the difference RM and AM ? I dont find AM example in Puckette theory & techniques of electronic music ...

maybe Puckette see the AM as a special case of RM, where the modulator have a DC offset.

posted in technical issues read more
• mx

Hello all.
PAF synthesis ask me some question.
lets take the example F12.paf.pd
since the modulator (the waveshaper at the right which generate the formant) range from 0 to 1 (unipolar), dont we have to speak about Amplitude Modulation, and not Ring Modulation ?

in Curtis Roads "Computer Music Tuto" we see that the Amplitude Mod (AM) is made with a unipolar modulator, whereas Ring Modulation (RM) need a bipolar one. And also that with the AM the partials from the carrier are present, whereas in RM thoses partials are removed so that we get only sidebands.
With the PAF, we see that the partials from the carrier are also present in the resulting signal... then why its name ring mod ?

thx.

posted in technical issues read more
• mx

I dont really get the section ** 3.4.2.9 Octave doubler** in the pd-tutorial.com ..

If you delay a periodic signal by the half the duration of one period and add it to the original, the fundamental tone (and all odd partials) is cancelled out

• if my signal is a sinusoid the result is a 0 signal ;
• if my signal come from a phasor (like in the example) the result is a sawtooh at the double freq ranging in [0.5 , 1.5] ;
• if my signal come from a natural instrument (e.g. a cello) how do we explain that it will remove the odd partials ?

thx.

posted in technical issues read more
• mx

@jancsika , with pleasure

• mx

@jancsika

• mx

@jancsika
keydown keyCode=17 which=17 charCode=0
keydown keyCode=54 (6) which=54 (6) charCode=0
keypress keyCode=0 which=45 (-) charCode=45 (-)
keyup keyCode=54 (6) which=54 (6) charCode=0
keyup keyCode=17 which=17 charCode=0

• mx

@jancsika
it is impossible to copy/paste

``````which 54
key 54
shift & altKey : false
ctlKey : true
metaKey : false
``````