Re: [PD] A better pitch shifter?
Hi all, I tried making a mult-delay pitch shifter once. It was no good for reducing latency, but it did slightly decrease the phenomenon of double attacks one sometimes gets - but also reduces the presence of the sound, not a tradeoff I liked in the end. I tried a bunch of other things over a period of months with no luck. cheers Miller On Wed, Mar 03, 2010 at 04:34:38PM +0100, Pierre Massat wrote: Hi! I have been using Miller Puckette's delay-based pitch-shifter (from the audio examples) for quite a while now, and i was wondering if it would be possible to improve it a bit. In particular i'd like to reduce the delay length to lower latency (i m using it in real time). Would adding more delay lines help me solve this problem? I must say that i never took the trouble to try and understand how this patch works, so i'm not sure where to start. Pierre ___ 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
Re: [PD] A better pitch shifter?
I've used this pitch shifter quite a lot for a number of different things -- how you use it seems to depend completely on context. For instance, if you're shifting mostly sustained sounds (so that attacks aren't so present), you can use a larger window size, which reduces some of the modulation artifacts you get when you use a lower size. You need the lower size for fast things, or things with strong attacks. I once experimented with trying to get the window to match exactly period boundaries of the incoming sound (to reduce the modulation completely), but it really only works with electronic sounds where you can be absolutely sure of the frequency. I have had luck in some rare cases mixing the output of two pitchshifters set to the same transposition but different window sizes -- again, no difference in latency, but it can help smooth things out if you're really aggressively pitchshifting something (like, by a perfect 12th), where presence isn't really something you're going to be able to attain anyway. I now keep several of them around with different settings for different contexts. Matt Hi all, I tried making a mult-delay pitch shifter once. It was no good for reducing latency, but it did slightly decrease the phenomenon of double attacks one sometimes gets - but also reduces the presence of the sound, not a tradeoff I liked in the end. I tried a bunch of other things over a period of months with no luck. cheers Miller On Wed, Mar 03, 2010 at 04:34:38PM +0100, Pierre Massat wrote: Hi! I have been using Miller Puckette's delay-based pitch-shifter (from the audio examples) for quite a while now, and i was wondering if it would be possible to improve it a bit. In particular i'd like to reduce the delay length to lower latency (i m using it in real time). Would adding more delay lines help me solve this problem? I must say that i never took the trouble to try and understand how this patch works, so i'm not sure where to start. ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] A better pitch shifter?
Did you try shifter~ (http://julovi.net/j/?page_id=7)? This is a Pd PSOLA pitch shifter I ported from Max/MSP. Developed originally by Tristan Jesen and hosted here. I found it faster than SSB, and format friendly. I hope it helps. Julian Villegas (http://julovi.net) Me pregunto de un modo pensativo Que significa ser Colombiano? No se le respondi. Es un acto de fe JLB. ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] A better pitch shifter?
Thank you all for your replies! I will give shifter~ a try tomorrow. Another related question : does any of you know how the digitech whammy pedal works? Considering how it sounds i'd say it basically tracks the pitch (the way sigmund~ would) and then generates a synthesized sound which kind of sounds like an electric guitar, and which frequency can be modified at will. Am I right? This is different pitch shifter model altogether, isn't? Pierre 2010/3/3 Julian Villegas jul...@yahoo.com Did you try shifter~ (http://julovi.net/j/?page_id=7)? This is a Pd PSOLA pitch shifter I ported from Max/MSP. Developed originally by Tristan Jesen and hosted here. I found it faster than SSB, and format friendly. I hope it helps. Julian Villegas (http://julovi.net) Me pregunto de un modo pensativo Que significa ser Colombiano? No se le respondi. Es un acto de fe JLB. ___ 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
Re: [PD] A better pitch shifter?
Hello,) yeah, an abs that receive the pitch shifting amount for processing each harmonics of sigmund~ outlet and give each result to oscillators. The design of polypoly~ abstraction would fit, something like [adc~]--[sigmund~ -npeak 10 peaks]--[partialShift~ 10]--//--[dac~] - Mail Original - De: Pierre Massat pimas...@gmail.com À: Julian Villegas jul...@yahoo.com Cc: pd-list@iem.at Envoyé: Mercredi 3 Mars 2010 18h18:00 GMT +01:00 Amsterdam / Berlin / Berne / Rome / Stockholm / Vienne Objet: Re: [PD] A better pitch shifter? Thank you all for your replies! I will give shifter~ a try tomorrow. Another related question : does any of you know how the digitech whammy pedal works? Considering how it sounds i'd say it basically tracks the pitch (the way sigmund~ would) and then generates a synthesized sound which kind of sounds like an electric guitar, and which frequency can be modified at will. Am I right? This is different pitch shifter model altogether, isn't? Pierre 2010/3/3 Julian Villegas jul...@yahoo.com Did you try shifter~ ( http://julovi.net/j/?page_id=7 )? This is a Pd PSOLA pitch shifter I ported from Max/MSP. Developed originally by Tristan Jesen and hosted here. I found it faster than SSB, and format friendly. I hope it helps. Julian Villegas ( http://julovi.net ) Me pregunto de un modo pensativo Que significa ser Colombiano? No se le respondi. Es un acto de fe JLB. ___ 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
Re: [PD] A better pitch shifter?
It might be possible to start from attached patch - Mail Original - De: colet patrice colet.patr...@free.fr À: Pierre Massat pimas...@gmail.com Cc: pd-list pd-list@iem.at Envoyé: Jeudi 4 Mars 2010 05h35:26 GMT +01:00 Amsterdam / Berlin / Berne / Rome / Stockholm / Vienne Objet: Re: [PD] A better pitch shifter? Hello,) yeah, an abs that receive the pitch shifting amount for processing each harmonics of sigmund~ outlet and give each result to oscillators. The design of polypoly~ abstraction would fit, something like [adc~]--[sigmund~ -npeak 10 peaks]--[partialShift~ 10]--//--[dac~] - Mail Original - De: Pierre Massat pimas...@gmail.com À: Julian Villegas jul...@yahoo.com Cc: pd-list@iem.at Envoyé: Mercredi 3 Mars 2010 18h18:00 GMT +01:00 Amsterdam / Berlin / Berne / Rome / Stockholm / Vienne Objet: Re: [PD] A better pitch shifter? Thank you all for your replies! I will give shifter~ a try tomorrow. Another related question : does any of you know how the digitech whammy pedal works? Considering how it sounds i'd say it basically tracks the pitch (the way sigmund~ would) and then generates a synthesized sound which kind of sounds like an electric guitar, and which frequency can be modified at will. Am I right? This is different pitch shifter model altogether, isn't? Pierre 2010/3/3 Julian Villegas jul...@yahoo.com Did you try shifter~ ( http://julovi.net/j/?page_id=7 )? This is a Pd PSOLA pitch shifter I ported from Max/MSP. Developed originally by Tristan Jesen and hosted here. I found it faster than SSB, and format friendly. I hope it helps. Julian Villegas ( http://julovi.net ) Me pregunto de un modo pensativo Que significa ser Colombiano? No se le respondi. Es un acto de fe JLB. ___ 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 #N canvas 30 8 560 605 10; #X obj 23 20 loadbang; #X obj 68 100 i \$1; #X obj 68 124 max 1; #X obj 66 176 until; #X obj 66 205 i; #X obj 107 205 + 1; #X obj 100 538 list trim; #X obj 100 562 s pd-\$0-partials; #N canvas 767 196 450 300 \$0-partials 0; #X restore 304 204 pd \$0-partials; #X obj 111 499 list prepend obj; #X obj 112 337 list prepend 10; #X obj 66 229 pack f \$0; #X obj 53 462 list prepend connect; #X msg 290 518 clear; #X msg 111 177 0; #X obj 66 148 min 128; #X msg 112 289 10 r \$2-partial \, 40 route \$1 \, 70 unpack f f \, 160 * 1 \, 190 osc~ \, 220 *~ \, 250 throw~ \$2-signal; #X msg 89 360 0 0 1 0 \, 1 0 2 0 \, 2 0 3 0 \, 3 0 4 0 \, 4 0 5 0 \, 5 0 6 0; #X msg 31 422 7 0 3 1 \, 2 1 8 0 \, 8 0 9 0 \, 9 0 5 1; #X msg 52 391 28 100 r \$2-control \, 76 150 pack f 10 \, 76 180 line~ ; #X obj 126 17 inlet sigmund tracker; #X obj 206 132 s \$0-partial; #X obj 394 13 inlet pitch; #X obj 395 58 s \$0-control; #X obj 289 134 catch~ \$0-signal; #X obj 289 158 outlet~; #X obj 32 294 t b a; #X obj 66 256 t a b a; #X obj 128 51 route reload; #X obj 123 72 t a b; #X connect 0 0 1 0; #X connect 1 0 2 0; #X connect 2 0 15 0; #X connect 3 0 4 0; #X connect 4 0 5 0; #X connect 4 0 11 0; #X connect 5 0 4 1; #X connect 6 0 7 0; #X connect 9 0 6 0; #X connect 10 0 9 0; #X connect 11 0 27 0; #X connect 12 0 6 0; #X connect 13 0 7 0; #X connect 14 0 4 1; #X connect 15 0 3 0; #X connect 16 0 10 0; #X connect 17 0 12 0; #X connect 18 0 12 0; #X connect 19 0 9 0; #X connect 20 0 28 0; #X connect 22 0 23 0; #X connect 24 0 25 0; #X connect 26 0 18 0; #X connect 26 1 19 0; #X connect 27 0 26 0; #X connect 27 1 17 0; #X connect 27 2 16 0; #X connect 28 0 29 0; #X connect 28 1 21 0; #X connect 29 0 1 0; #X connect 29 1 14 0; #X connect 29 1 13 0; #N canvas 814 552 450 300 10; #X obj 106 124 partialShift 2; #X obj 106 83 sigmund~ -npeak 2 peaks; #X obj 112 56 osc~ 440; #X obj 264 92 hsl 128 15 1 8 0 0 empty empty empty -2 -8 0 10 -262144 -1 -1 1400 1; #X obj 100 161 sigmund~ -npeak 2 peaks; #X obj 100 196 route 0 1; #X obj 102 234 unpack f f; #X floatatom 102 256 5 0 0 0 - - -; #X floatatom 156 257 5 0 0 0 - - -; #X obj 198 236 unpack f f; #X floatatom 198 258 5 0 0 0 - - -; #X floatatom 252 259 5 0 0 0 - - -; #X msg 251 33 \; pd dsp 0; #X msg 318 32 \; pd dsp 1; #X msg 21 59 reload 2; #X text 3 35 reconstruct patch; #X text 292 69 pitch; #X text 213 7 must turn dsp off before creation; #X connect 0 0 4 0; #X connect 1 0 0 0; #X connect 2 0 1 0; #X connect 3 0 0 1; #X connect 4 0 5 0; #X connect 5 0 6 0; #X connect 5 1 9 0; #X connect 6 0 7 0; #X connect 6 1 8 0; #X connect 9 0 10 0; #X connect 9 1 11 0; #X connect 14 0 0 0; ___ Pd-list@iem.at mailing list
Re: [PD] A better pitch shifter?
there was something missing for connecting all osc~ instances, it's fixed in attached one - Mail Original - De: colet patrice colet.patr...@free.fr À: Pierre Massat pimas...@gmail.com Cc: pd-list pd-list@iem.at Envoyé: Jeudi 4 Mars 2010 06h37:06 GMT +01:00 Amsterdam / Berlin / Berne / Rome / Stockholm / Vienne Objet: Re: [PD] A better pitch shifter? It might be possible to start from attached patch - Mail Original - De: colet patrice colet.patr...@free.fr À: Pierre Massat pimas...@gmail.com Cc: pd-list pd-list@iem.at Envoyé: Jeudi 4 Mars 2010 05h35:26 GMT +01:00 Amsterdam / Berlin / Berne / Rome / Stockholm / Vienne Objet: Re: [PD] A better pitch shifter? Hello,) yeah, an abs that receive the pitch shifting amount for processing each harmonics of sigmund~ outlet and give each result to oscillators. The design of polypoly~ abstraction would fit, something like [adc~]--[sigmund~ -npeak 10 peaks]--[partialShift~ 10]--//--[dac~] - Mail Original - De: Pierre Massat pimas...@gmail.com À: Julian Villegas jul...@yahoo.com Cc: pd-list@iem.at Envoyé: Mercredi 3 Mars 2010 18h18:00 GMT +01:00 Amsterdam / Berlin / Berne / Rome / Stockholm / Vienne Objet: Re: [PD] A better pitch shifter? Thank you all for your replies! I will give shifter~ a try tomorrow. Another related question : does any of you know how the digitech whammy pedal works? Considering how it sounds i'd say it basically tracks the pitch (the way sigmund~ would) and then generates a synthesized sound which kind of sounds like an electric guitar, and which frequency can be modified at will. Am I right? This is different pitch shifter model altogether, isn't? Pierre 2010/3/3 Julian Villegas jul...@yahoo.com Did you try shifter~ ( http://julovi.net/j/?page_id=7 )? This is a Pd PSOLA pitch shifter I ported from Max/MSP. Developed originally by Tristan Jesen and hosted here. I found it faster than SSB, and format friendly. I hope it helps. Julian Villegas ( http://julovi.net ) Me pregunto de un modo pensativo Que significa ser Colombiano? No se le respondi. Es un acto de fe JLB. ___ 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 ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list #N canvas 30 8 560 605 10; #X obj 23 20 loadbang; #X obj 68 100 i \$1; #X obj 68 124 max 1; #X obj 66 176 until; #X obj 66 205 i; #X obj 107 205 + 1; #X obj 100 538 list trim; #X obj 100 562 s pd-\$0-partials; #N canvas 767 196 450 300 \$0-partials 0; #X restore 304 204 pd \$0-partials; #X obj 111 499 list prepend obj; #X obj 112 337 list prepend 10; #X obj 66 229 pack f \$0; #X obj 53 462 list prepend connect; #X msg 290 518 clear; #X msg 111 177 0; #X obj 66 148 min 128; #X msg 112 289 10 r \$2-partial \, 40 route \$1 \, 70 unpack f f \, 160 * 1 \, 190 osc~ \, 220 *~ \, 250 throw~ \$2-signal; #X msg 89 360 0 0 1 0 \, 1 0 2 0 \, 2 0 3 0 \, 3 0 4 0 \, 4 0 5 0 \, 5 0 6 0; #X msg 31 422 7 0 3 1 \, 2 1 8 0 \, 8 0 9 0 \, 9 0 5 1; #X msg 52 391 28 100 r \$2-control \, 76 150 pack f 10 \, 76 180 line~ ; #X obj 126 17 inlet sigmund tracker; #X obj 206 132 s \$0-partial; #X obj 394 13 inlet pitch; #X obj 395 58 s \$0-control; #X obj 289 134 catch~ \$0-signal; #X obj 289 158 outlet~; #X obj 32 294 t b a; #X obj 66 256 t a b a; #X obj 128 51 route reload; #X obj 123 72 t a b; #X connect 0 0 1 0; #X connect 1 0 2 0; #X connect 2 0 15 0; #X connect 3 0 4 0; #X connect 4 0 5 0; #X connect 4 0 11 0; #X connect 5 0 4 1; #X connect 6 0 7 0; #X connect 9 0 6 0; #X connect 10 0 9 0; #X connect 11 0 27 0; #X connect 12 0 6 0; #X connect 13 0 7 0; #X connect 14 0 4 1; #X connect 15 0 3 0; #X connect 16 0 10 0; #X connect 17 0 12 0; #X connect 18 0 12 0; #X connect 19 0 9 0; #X connect 20 0 28 0; #X connect 22 0 23 0; #X connect 24 0 25 0; #X connect 26 0 18 0; #X connect 26 1 19 0; #X connect 27 0 26 0; #X connect 27 1 17 0; #X connect 27 2 16 0; #X connect 28 0 29 0; #X connect 28 1 21 0; #X connect 29 0 1 0; #X connect 29 1 14 0; #X connect 29 1 13 0; ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
