Delicious Max/MSP Tutorial 7: Pitch shifting

www.otherbirds....
Finally, I've overcome the last remaining reason to have friends: forming a barbershop quartet.

[@NedRush]

I'm revisiting this so I could try the same patch with mc~ WILD. Might be my next video.

[@dude837]

@lmnkable Yeah, I meant to touch on that from the start. Check out part three, I talk about how to deal with the change in pitch rather than the phasor speed. I studied computer science in school, but spent a lot of time making what could be called music, if you were feeling generous.

[@thomasstephenson4043]

shouts out to holly herndon for recommending these tutorials

[@dude837]

I mean shout out to holly herndon in general, just for being great

[@thedufeys]

your a legend! At uni, one of our subjects involves heavy use of max/msp, and your tutorials are incredible!

[@Algirdas193]

Amazing tutorial, u have just inspired and determined the final project of my bachelor studies

[@Algirdas193]

THANKS!!!!!

[@pivotmaster9556]

did you pass? how you doin now?

[@obineg5752]

instead of adding a offset to the phasor you can do that as well somewhere lower around the cos object (and eventually save 1-2 objects)

[@crash936]

how do you just know all this it amazes me....

[@dude837]

@ronnie9253 Awesome, glad you liked it. Yeah, old Charlie seems to be getting everyone these days.

[@fenriii]

Hey, I know that ALOT of time has passed since this post, but I have a nice alt solution for this thing - use cos^2 instead cosine. This way, you need just two lines and get no output modulation.

[@syannamusic7865]

Thanks :D

[@deanesamuelporter9369]

Fenrii Fenrii thanks fenri

[@3Leon5]

You can record a waveform in a buffer~ so you make once the operation and the phasor~ reads the wavetable. The domain of the cos should be from 0 to pi (=180°) so you have only the positive value. Also you can use cos^2 to write the wavetable.

[@liberon]

The cos~ object gives a different out put in scope when I follow the same steps,so clicks and phase vibrato still exist..Any suggestion?

[@digitalghosts4599]

Is it possible to use the same or similar technique to generate higher pitch?

[@dude837]

@ronnie9253 Lol, I promise nothing is below me. I haven't heard of that book, I'll have to check it out. Yeah, with time I'd love to do a motivated series. I'd really like to do something that actually culminates in a piece or something... but yeah, time is the limiting factor.

[@henryjames6284]

So if I was trying to implement this in code, the general jist is that the phaser modules the delay time of the delay line right? Or does it control how fast the delay line plays back? Asking for a friend.

[@dude837]

Ha, yeah, it's modulating the delay time. But in code the "delay time" is really just an index into a circular buffer of a fixed size, no?

[@henryjames6284]

@@dude837 cool! Thanks for getting back to me, yeah I've implemented a circular buffer and a phaser but end not getting a pitch shift, sounds like the delay time is just slowly increasing until it resets. But as long as I'm in the right ball park! Will keep fiddling. Cheers dude!

[@miguelalexandresimoesneves8660]

Hey Man, this sounds really simple, but I 'm trying to do this in gen~, but there is no tapin~ and tapout~, and when I try to do with history it doesn't work

[@miguelalexandresimoesneves8660]

What could be a way of "translating" it to gen~?

[@veronicaklassen380]

hey did anybody see that weird clip with the cocaine scene? at like 358 or was that just me?

[@matteodimatteas]

The minimum delay time that can be used for feedback into a delay line using tapin~ and tapout~ is determined by the signal vector size (Options->Audio Status). " "Tapin~ Help"

[@willemxeno]

This is great. Where have you learned all your theory? Super curious :) Thank you!

[@johneygd]

But can it bealso done analogue without slowing down or speeding up the sound?

[@byammana]

is it possible to have tapin and tapout on a toggle?

[@jeli780]

Hi Sam! first of all thanks for your amazing tutorials! quick question, Is it possible to use a comb~ filter for those clicks and how? Thanks

[@noiseyparker1]

great tutorial, is there any way to reduce the latency?

[@sabinacovarrubiasa]

I'd like to transpose voice and preserve formants. any clue about how to do it?

[@ImaGenesisBaby]

+Sabina Covarrubias I'd like to do that, also! Seems no one has the answer or will respond. Have you found the answer?

[@LuvLDZ]

Thanks for an amazing tutorial! I have only one question, what do You use modulo 1 for? Having added a value to the phasor you perform modulo in order to have the step shift? I don't quite get it, if You could explain it, I'd be grateful :) Regards

[@NedRush]

cool.

[@raverlof]

you are a fakin genious! = ) After a month I saw this video, now I came back, and didnt realise how much information I left behind from just seeing once = ) = ) = )

[@fredmarchetti]

Hey, thanks for the tutorial but just like everyone I keep getting clicks on the sound making the patch unusable :( any help? Thanks!

[@fredmarchetti]

DJ Fred Marchetti Sorry I was drunk when I asked this question... figured it out here :D

[@dude837]

DJ Fred Marchetti That's okay, I've been drunk literally dozens of times

[@alexlynch1262]

I'm having the same issue! How did you fix it?

[@Just_Lauraa]

It doesn't work for me, do I need a mic? I also have a HP computer so...

[@theRealPlaidRabbit]

I wanted to download the patch from your website, but your website is infected with the "Install New Version of Adobe Flash" virus.

[@dude837]

Hey yeah, I'm sorry, that link is old as hell and totally broken. If you look in the Max package manager, there's a package called Delicious Tutorials that contains this patch.

[@theRealPlaidRabbit]

muchas thx! dude837

[@dopplermonk]

Wow. This was awesome! Sounds so much better that the "gizmo" thingy in max. How Do I calculate how much to change the phasor, to change into exact musical intervals? (to make a harmonizer for instance) ? Btw - what are your education ( - since you know so much about soundmanipulation).

[@tonybeatbutcher]

How to get out the latency ???

[@j58688grgrs]

Why the hell can't I get this working in Pure Data aarrrrgggg

[@gaialivingston5683]

This is so helpful...thank you. ♡

[@matteodimatteas]

"The minimum delay time that can be used for feedback into a delay line using tapin~ and tapout~ is determined by the signal vector size (Options->Audio Status). " "Tapin~ Help"

[@furystarartest]

what was with the flash of cocaine please i need answers

[@marc.laurin]

Requiem For A Dream

[@raverlof]

How did you get that formula ^^' = ) I'm curious = ) cheerz

[@oracledsp]

2nd time through love your page!

[@iammorek]

You are the best. Thank you for your service.

[@dude837]

No, you.

[@iammorek]

@@dude837 Hey man! I was wondering if you could help me out figure out an issue regarding a patch. Its sort of complicated (at least of me) and believe me, I've been trying everything. Long story short: I'm using a speaker at a static frequency [cycle~ 30] to drive the movement of a 15hz tuned elastic string into the shape of two antinodes; then, driven by an audio amplifier, I'm controlling a LED strip with [rect~ 30] to produce a strober effect, creating a static "light line" within the string; finally, I'm messing with the duty cycle and sync inputs of the [rect~] in order to manipulate my strober position, basically letting me play with the position of this mentioned "light line". My issue is that, when applying a constant rate to the "light line" movement, whenever I turn ON and OFF the DSP, it shows up at a different position everytime, its like the DSP kept running in the background, and whenever I turned it back ON, it just displayed its current position. I would like it to always begin at 0°, I don't know where am I failing. The patch has other elements: I'm actually driving multiple speakers and LED strips, and it also has a sequencer to manipulate the pulse width and behaviour of the lights lines over time, amongst other things. I can elaborate further, and share with you the patch if you'd like to. Id really appreciate your advice, I don't know how to reach out with you, so I'm leaving you my e-mail: is [e-mail]. Please help!

[@dude837]

@@iammorek Hey man, check your email

[@masterP508]

I followed the exact steps but somehow i still got the phase f*£&&£ and clicking still there too!! :(

[@alexjones4419]

Awesome tutorial

[@jit3k]

awesome! I wish I could come up with this stuff on my own!

[@mylessmith8993]

I am slightly confused by when you said 100Hz = 60Hz, 1kHz = 600Hz. Did you work that out using that equation? fout = fin * (1 - pfreq * (dw)/1000) please can you explain what you meant by what you said. Amazingly helpful video! Thank you!

[@dude837]

That's right. With this technique, each frequency will be mapped to a new frequency at some constant ratio. With a phasor frequency of 4 Hz and a delay window of 100 ms, that equation gives you the frequency ratio of 0.6. So with a frequency in of 100Hz, the output frequency will be 0.6 * 100 or 60 Hz.

[@britishraccoon]

just search in pitchshift. select cent on the green arrow and there you go,.

[@dude837]

well yeah

[@matteodimatteas]

about the annoying clicks, you could have used the object trapezoid~ instead of going through all that process.

[@johnnyc7777777]

Very nice indeed.

[@AusterlitzRock]

this has just been very helpfull ! Thanks a lot !

[@timetexture]

Great tut! Thanks!

[@gaialivingston5683]

thank you!!!

[@xuukifauveboy9376]

Brilliant!! thank you

[@bordenweist]

muchas gracias viejo!!!!

[@FockingA]

thanks dude

[@MaxQuinones86]

man good look with your divorce and your life thanks a lot for your teaching =)

[@sabinacovarrubiasa]

it's cool man, thanks,

[@marcofracasia]

sei un frate

[@marcofracasia]

un bro..