[PD] frequency
hi all can anybody telle me how to get the right frequencys out of a frequency analysis at 22050 samplingrate in an array with 256 adresses thank you in advance der.brandt ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] frequency
if you do a fft and look at the array with the results, you will have the DC at arrayposition 0 and a frequency of SR/WS (samplingrate divided by window size) at position 1. with your settings this would be around 86Hz. the other elements of the array hold multiples of 86Hz. on pos2 2*86, on pos3 3*86... on pos128 you should get the Nyquist frequency (sample rate/2=11025) which is the highest frequency you can analyze. the rest of the array are mirror frequencies, that you don't need for analysis. if you want to get the array position for 5000Hz you do 5000/86... so you should feed the number 58 into your tabread. bear in mind that the fft will use the first 129(!) pins of the 256 array (position 0-128) to put frequency values. that is, because the DC and the nyquist frequency don't have(/need) a phase information. at least that's the theory... marius. bra...@subnet.at wrote: hi all can anybody telle me how to get the right frequencys out of a frequency analysis at 22050 samplingrate in an array with 256 adresses thank you in advance der.brandt ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
[PD] imaginary numbers
hello how is it possible to calculate with imaginary numbers in PD besides the fft stuff. thank you in advance der.brandt ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] Pduino 0.5/Firmata 2.1 third beta release
hm tried it today with an arduino duemilanove i got the same behaviour - as soon as switching to servo mode no pwm signal at all on pins 9+10... greets olsen Hans-Christoph Steiner wrote: The mega is going to need a good chunk of work to really support it. The Arduino code is really structured around the original chip. I don't have the time to do the work myself, but I would happily help someone if they take it on. .hc On Aug 27, 2009, at 4:00 PM, olsen wolf wrote: hI hans i tried this beta on the arduino mega with a servo - again same result: pwm works but switching output mode to 'servo' i get no signal on pins 9+10. i`ll have the mega at hand these days should hang around in the #dataflow channel so let me know whenever there`s some testing to be done. 30° greets ø On Mon, Aug 17, 2009 at 6:59 PM, Hans-Christoph Steinerh...@at.or.at wrote: http://at.or.at/hans/pd/objects.html#pduino We fixed a few bugs, we just need to iron out MegaServo support to make this a final release: - (Pduino) fixed bug in digital input with pins 7, 15, 23, etc. - (Firmata) fixed crasher bug in Firmata with analog input - (Firmata) included old version of StandardFirmata set @ 115200 to ease the transition to 57600 Please test and report and bugs or issues! .hc Using ReBirth is like trying to play an 808 with a long stick.-David Zicarelli ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list -- ETs DNA will not be televised Using ReBirth is like trying to play an 808 with a long stick.-David Zicarelli -- ETs DNA will not be televised ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] pd~ for Max
Now with Csound for Pd and Max for Live, you could have Csound for Pd for Max for Live! .hc On Aug 27, 2009, at 11:51 PM, Jonathan Wilkes wrote: Hi Miller, Will [pd~] ever be available for windows machines? Or is it just not possible to implement (I remember reading about some technical hurdle but I can't remember what it is at the moment)? Thanks, Jonathan --- On Fri, 8/28/09, Miller Puckette mpuck...@imusic1.ucsd.edu wrote: From: Miller Puckette mpuck...@imusic1.ucsd.edu Subject: Re: [PD] pd~ for Max To: Max abonneme...@revolwear.com Cc: pd-list@iem.at Date: Friday, August 28, 2009, 5:35 AM Oops, sorry about that... I reorganized some stuff and that fell through a crack. It's back up on: http://crca.ucsd.edu/~msp/software.html cheers Miller On Fri, Aug 28, 2009 at 03:21:57AM +0200, Max wrote: Hi List, i've been asked by students where to download the starter drug ?pd~ for Max? and i could not find it myself - i thought it is available? It's neither here: http://crca.ucsd.edu/~tapel/software.html nor http://crca.ucsd.edu/~msp/software.html and here neither: http://www.maxobjects.com/?v=authorsinitiale=M max ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list Mistrust authority - promote decentralization. - the hacker ethic ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] pd~ for Max
I'm having trouble getting it to run - there is no INSTALL instructions, but i guess pd~.mxo lives in /Applications/Max5/Cycling\ '74/msp-externals/ and pd~.help lives in /Applications/Max5/Cycling\ '74/msp-help/ allthough the other files are called .maxhelp, not .help i restarted Max and created a pd~ Object, it has no in or outlets but i can open the Help from there, switch Audio on and Select the Pd-0.42-5.app but nothing happens. what am i doing wrong? Am 28.08.2009 um 05:35 schrieb Miller Puckette: Oops, sorry about that... I reorganized some stuff and that fell through a crack. It's back up on: http://crca.ucsd.edu/~msp/software.html cheers Miller On Fri, Aug 28, 2009 at 03:21:57AM +0200, Max wrote: Hi List, i've been asked by students where to download the starter drug ?pd~ for Max? and i could not find it myself - i thought it is available? It's neither here: http://crca.ucsd.edu/~tapel/software.html nor http://crca.ucsd.edu/~msp/software.html and here neither: http://www.maxobjects.com/?v=authorsinitiale=M max PGP.sig Description: Signierter Teil der Nachricht ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] imaginary numbers
On Fri, 28 Aug 2009, bra...@subnet.at wrote: how is it possible to calculate with imaginary numbers in PD besides the fft stuff. basically, if you know that something is an imaginary number, you can use a real number in its place and just remember to multiply by square root of -1 in your head. but if you want to combine real and imaginary numbers, then you need complex numbers, each of which is a real and an imaginary number. let i be sqrt(-1)... then let's say you have two complex numbers, a+bi, c+di, as four floats. the sum is (a+c)+(b+d)i, that is you add the real parts together, and add the imaginary parts together. From this, you can guess how to subtract. The product formula is (a*c-b*d)+(a*d+b*c)i, which you can often see in Miller's FFT patches as a cluster of four [*~]. You can find more such formulas on Wikipedia, PlanetMath, MathWorld, or other, but if you can't find one or have trouble getting one to work, ask pd-list again. Abstractions could have been made for some of these, especially *, /, exp, log, but I don't think any such library exists. GridFlow provides those operations as an external if you need something fast. _ _ __ ___ _ _ _ ... | Mathieu Bouchard, Montréal, Québec. téléphone: +1.514.383.3801___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
