G09.pitchshift.pd as I understand it is emulating an even older hat in audio tech, namely the rotary tape head pitch shifter. Explanation here: https://valhalladsp.com/2010/05/04/pitch-shifters-pre-digital/

It just so happens that this technique is a subset of what you can do with granular synthesis- and the digital implementation is using some of the same tricks as granular synthesis (splicing, window fading, etc). So your observation is correct in the same way as "A radio tuner is a filter".

Hello again,
I am looking ast G09.pitchshift.pd and am failing to see the exact differences between this and granular synthesis. Is it merely an implementation of granular synthesis?

granular.zip

So I've been using some version of this patch (the main patch is gs.pd) for a while now for Granular Synthesis using audio files and it works well. I've adapted it here to take live input that continually refreshes (cf. the upper right of gs.pd), and it works, but sometimes there are random snaps in the sound. If I had to speculate as to what is causing this, I'd imagine it's the buffer changing in a part that is currently being read, but I'm not sure how to confirm this, or even what I'd do about it if I could. The heart of the synthesis is in grain-stream.pd, three of which are in [pd 3streams in the mid-lower-left of gs.pd. Any ideas? Maybe have it alternate reading into two buffers and have the grain-stream read only from the buffer that's currently not being written to? Sounds like that'd be tricky to coordinate timing-wise though.

Hello all,
I am trying to make a granular synthesis operation and have an idea to make it more precise but do not know how to do a few things. Hoping someone can help.

I want to make a granular synthesis object that can play grains in a wide variety of ways. So what was my new concept?

Record the audio that I am going to manipulate.four times sampling rate faster if possible. then play it four times slower which would bring it down four 2 octaves of course. My thought was that I would record at a 44100 * 4 = 176400 sampling rate. Then play the file at 44100 sampling rate. Which would play it down 2 octaves, but the files would not be "grainy.."

Then I could use the granular synthesis operation to play each grain 4x faster which would bring the file back up to speed but would play the sound 4x longer in duration. Does this make sense?

This is coming up because there is too much distortion when I play the file 4x slower and then use granular synthesis to bring the speed back up.

OK, so I tried to use:

writesf~

With the rate changed to 176400. This does not seem to work.

I wrote it like this:

writesf~ -rate 176400

But that did not seem to work. So, I just am thinking, can you use sampling rate higher than set by preferences?

@otterly Hello. I am working for some time on a modular system called NoxSiren. You can use it to make complex drone music, drone ambient or generative music etc. The system is open-source and free to use. Also you can study the code behind each module or even add your own modules to the system. Also you don't need any external libraries to run both NoxSiren or Nek'sum just Pure Data.

NoxSiren system snapshot :

NoxSiren system :
https://forum.pdpatchrepo.info/topic/13122/noxsiren-modular-synthesizer-system-v14

Nek'Sum snapshot :

Also i made Nek'Sum. It is an advance drone/texture monophonic synthesizer.
https://forum.pdpatchrepo.info/topic/13076/nek-sum-an-advanced-drone-texture-monophonic-synthesizer-v6-0-mandarin-edition

Here is a quick demo of the kind of things you can do with my modular synthesizer system called NoxSiren .

NoxSiren System :
https://forum.pdpatchrepo.info/topic/13122/noxsiren-modular-synthesizer-system-v4-0

Kor'In Synthesizer :
https://forum.pdpatchrepo.info/topic/13137/kor-in-advance-6-voice-polyphonic-synthesizer-made-with-noxsiren-v4-0

Kor'in an advance example of how to create an entire synthesizer using only NoxSiren [v4.0] system. This is non-standard subtractive synthesizer model but can be modified into a hybrid complex model.

What is NoxSiren system ?? <--
https://forum.pdpatchrepo.info/topic/13122/noxsiren-modular-synthesizer-system-v4-0

Kor'in Download :
Kor'in.rar

-Kor'in Structure-

• Kor'in birds eye view
  
• Kor'in voice unit
  
• Kor'in delay unit
  
• Kor'in noise unit
  
• Kor'in SMU unit
  

@ingox I remember it going the same slow route, but I could be wrong.
I think it has been around since at least 2007...... but maybe 2015..... I am usually wrong about everything.
New product release was much easier the further you go back in time......
It had more "save the planet" niche appeal when it started than full tech blowout I think (and they have built on that).
Niche can do it, but a user base is still a fundamental for sales, and will be smaller.
Organelle is certainly an established strong competition for a new entrant.
It was around in 2015.... https://forum.pdpatchrepo.info/topic/9570/organelle
and manufactured by an established synth company.... so they had the resources.
I was not 100% mistaken. Not the same principle, but the same design from 2009/2011.......
https://encyclotronic.com/synthesizers/critter-guitari/pocket-piano-r1216/
And they have done the "flashing buttons" too.......
https://encyclotronic.com/synthesizers/critter-guitari/critter-guitari-onda-musical-instrument-computer-r1792/

@MikeMorenoDSP Nice. I am also working on Nek'Sum. It is a drone/texture monophonic synthesizer. I still have many ideas to add to my synthesizer. Very curious about the hyper-LFO (what is the difference between hyper-LFO and a normal LFO ?). Here is my synthesizer if you are interested in : https://forum.pdpatchrepo.info/topic/13076/nek-sum-a-drone-texture-monophonic-synthesizer. I like your GUI design.

Nek'Sum-6 drone/texture monophonic synthesizer is compose of 5 stages :

First stage -> 3 main OSC with noise mixer option and generative synthesis support with 5 types of waves (tri,sqr,saw,supersaw,generative).
Second stage -> Filter stage with morph option and 4 filters types : Pass through, Lowpass, Highpass, Bandpass for the first stage.
Third stage -> 3 LFO (sin,tri,sqr,saw) modulators for the second stage.
Forth stage -> 3 Phasor's for the third stage.
Fifth stage -> 1 Deep Reverb with Lowpass filter for the forth stage.

It is capable of generating a large soundscape of drone/texture sounds inspired by The Doctor.

-UPDATE-
Thanks to Seven of Nine Nek'Sum is now at version [v6.0]

• Added Mandarin edition after cyber-brainstorming with Jade Chia-Jung [v6.0].
• Translation of the Ancient Egyption logo into obscure dialect of Anquietas language, thanks to Daniel Jackson [v6.0].
• Thanks to Nox cyberart society now the GUI is much better [v5.0].
• Added reset, randomization and resize for the generative synthesis [v5.0].
• Added generative synthesis support for each oscillator [v4.0].
• Added a noise mixer with 4 types of noise for each oscillator (orange,yellow,blue,pink) [v3.0].
• Added a morphing mechanism for filter stage [v3.0].
• This new version has a better GUI interface powered by a Borg-Casimir engine [v2.0].

-CYBERLOG-

Project manager : Oma Desala
Programming/UX design : Boran Robert Andrei
QA engineer : Anubis
Generative synthesis system design/Lead engineer : Seven of Nine
DSP engineering : Jade Chia-Jung, The Doctor
Testing/debugging system engineer : Lt. Colonel Samantha Carter
Language consultant : Daniel Jackson

Patch Download English Edition :
Nek'Sum 6.rar
Nek'Sum 5.rar
Nek'Sum 4.rar
Nek'Sum 3.rar
Nek'Sum2.rar
Nek'Sum.zip

Patch Download Mandarin Edition :
Nek'Sum 6 - Mandarin Edition.rar

Mandarin special edition :

Snapshots :