michelefiori

I would like to work starting from the patch

contained in: examples / jitter-examples / gen.

-- Can you tell me where does the mathematical formula contained in gen?

-- what other mathematical formulas I use?

-- it is possible to obtain an output of a matrix retaining the differentiation of colors,

so as to be able to use the matrix to enter additional filters?

Many thanks to all those who want to help me

hi,
I would like to work starting from the patch 

 contained in: examples / jitter-examples / gen. 

-- Can you tell me where does the mathematical formula contained in gen?
-- what other mathematical formulas I use?
--  it is possible to obtain an output of a matrix retaining the differentiation of colors,
 so as to be able to use the matrix to enter additional filters?

iterated-function-systems-2

Iterated.function.systems

Recall the Coll

Hello, I was wondering if there is a way to normalize in gen~, like the normalize~ object works.

normalize-in-gen-like-the-normalize-object

Normalize in gen~ like the normalize~ object

yaniki

Do we have a section somewhere in the gen~ documentation that discusses using arguments that enable the creation of structures that allow the use of #0 and/or -- arguments to create local references, similarly to using the mentioned arguments for e.g. local send/receive connections?

Let's say I have an abstraction, in it a buffer~ object, which is also referenced by the code placed in gen~ (in the same abstraction). I use "--#0_something" in the name in buffer~ (to behave like a "locally" named object from both MaxMSP and M4L). Now how do we translate this into a "link" to buffer~ inside gen~.

I will be grateful for your suggestions and tips.

Dear Friends

Do we have a section somewhere in the gen~ documentation that discusses using arguments that enable the creation of...

0-andor-arguments-and-gen

#0 and/or -- arguments and gen~

axers fall

In this video series,I will show you how to make a drum sequencer with gen~.(RECOMMEND WATCH 

https://youtube.com/@axersfall369?si=wSMlfoqQP-E6q8jS

In this video series,I will show you how to make a drum sequencer with gen~.(RECOMMEND WATCH PART 1 FIRST)

Please check out my youtube...

how-to-make-a-drum-sequencer-with-genpart-2

How to make a drum sequencer with gen~(part 2)

Mattebass

Hi, I'm trying to build a multitap delay in gen~ in which the channels/tap are opened/closed procedurally by a scanning phasor. I'm actually using the selector object, but I'm not sure about its behaviour when changing channels: is there an interpolation factor, as like as a crossfade between the signals? This factor could be controlled?

Another question is about the delay  object in gen~: there's the possibility to clear the circular buffer associated with the delay line, or the only way to clear is to fill it with 0-value signal.

Hi, I'm trying to build a multitap delay in gen~ in which the channels/tap are opened/closed procedurally by a scanning phasor. I'm...

gen-some-doubts-about-selector-interpolation-and-empty-a-delay-line

gen~ some doubts about selector interpolation and empty a delay line 

Yab Yonabson

I'm trying to get a variable threshold for a tanh-like object in gen~ for my signal to be able to go up before being saturated, and retain more of his original shape, as for exemple red in this paper : Sanfilippo, D. (2021). Constrained Differential Equations as Complex Sound Generators. 

Proceedings of the 18th Sound and Music Computing Conference

I've saw an implementation in Faust, but the code didn't helped me.

Do anyone thinks it could be possible to build something like that in gen ?

I'm not familiar with the codebox syntax, but willing to try if needed.

Hi all,

I'm trying to get a variable threshold for a tanh-like object in gen~ for my signal to be able to go up before being saturated,...

variable-threshold-tanh

variable threshold tanh ?

Phil Maguire

I'm having an odd problem with this harmonic oscillator I'm working on. As I increase the partial (multiplier of the sine wave frequency), the gain decreases... unless I remove everything I put in to avoid clicks. 

 is basically a filter, then I think I get why it's happening, but it also does it if I use the 

Gain issue when using [slide] to remove clicks

gainslide-issue-with-frequency-multiplication

JesterN

Hi all I'm trying to copy buffers from a circular buffer to a fix one. Doesn't work. Any help?

Untitled3.maxpat

Hi all I'm trying to copy buffers from a circular buffer to  a fix one. Doesn't work. Any help?

gen~-copy-buffer

Here is a gen code box function which works fine. It will return 1 if the copy procedure has finished.

Jo
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

Duplicate_Buffer (Copy_SourceBuffer, Copy_TargetBuffer, Copy_AmountSamples) { 
	History Copy_SegmentSize (32);
	History Copy_Counter (0);

	if (Copy_Counter < Copy_AmountSamples) {	
		for (i=0; i < Copy_SegmentSize; i += 1) {	
				read = peek (Copy_SourceBuffer, Copy_Counter);
			poke (Copy_TargetBuffer, read, Copy_Counter);
			Copy_Counter = Copy_Counter + 1;					
			}
	}
	else 
		if (Copy_Counter >= Copy_AmountSamples) {		
	    	Copy_Counter = 0;
			return 1; // SPIKE :-)
		}
}
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

Nice routine! 
 
Maybe it needs an additional condition in the for loop to break when the source buffer is fully copied (in case the source buffer is not a multiple of 32 samples long):

Duplicate_Buffer (Copy_SourceBuffer, Copy_TargetBuffer, Copy_AmountSamples) { 
	History Copy_SegmentSize (32);
	History Copy_Counter (0);
	if (Copy_Counter < Copy_AmountSamples) {	
		for (i=0; i < Copy_SegmentSize && Copy_Counter < Copy_AmountSamples; i += 1) {	
			read = peek (Copy_SourceBuffer, Copy_Counter);
			poke (Copy_TargetBuffer, read, Copy_Counter);
			Copy_Counter += 1;					
		}
	}
	else if (Copy_Counter >= Copy_AmountSamples) {		
		Copy_Counter = 0;
		return 1; // SPIKE :-)
	}
}

Hello Graham, thanks for the optimization of the code :-)

HI Jo, thanks A LOT! almost there, I just can't find a way to put a bang into it to control when it copies.  I adapted your function a bit.

looking at all that stuff, a simple message to dest buffer:
set src, set dst

would copy the source buffer to destination buffer, no need for
anything else, no java, no gen ---


I assumed the OP wanted to use gen for a specific reason. 

BTW the 'set' message to buffer~ does not copy data, it just changes the name that a buffer~ is referenced by. 

I am gratefull fo all possible solutions for copying, merging etc buffers.
For me the best is el.buffet~ , but it does not work for me in version 3.
setting buffer to another one and back to original, grabs data from
the other buffer, so for me it is copy, or what would one call it ?



Hi there, still haven't found out how exactly to use that code. It copies but I'd like to copy it only at certain times, when I bang for example. Still doesn't do that any help

Bangs are used in the max world. Gen is the signal world. Therefore these are two pairs of shoes. If you want to trigger a gen function from the max world you have to use a click object from the max world. When you send a bang to the click object it will create signal spike. This spike can be used to trigger a function in the gen world. 

So try using the following combination: button => click => gen

Hmm maybe I attached the wrong patch but I used the click there. Just doesn't update the buffers for some reason. It does when I use sig~ but at weird intervals.

As I said welcome to the signal world :-)

When you use the clock object it sends a signal spike to gen.  The audio signal looks like this before and after you trigger the click object: 00000000000001000000000..... So this means that your code in the gen object is only triggered once and that means that it only copies one segment as the code is written that way. A segment is set to 32 in the code so this means it only copies 32 samples :-)

On the other hand when you use your sig method it will send the following to gen. You click on the box and the audio signal changes from 0 to 1 and stays that way. This means that your code is continuously executed. This means that you continuously copying. You see this when you clear the buffer manually. It will always copy again...

So you need to tell gen how long it shall execute the code that I was providing you and when it should stop executing.

Start is done using click and you would need a history variable in gen to keep that state.
Stop is provided by my routing as it sends out a 1 when it has finished copying. 

I know this can be quiet strange but gen has no bangs it only has a continuous flow of  audio signals :-)

Hi, Jo G.
Please help me to catch a gist of Gen world. When I was trying to copy a buffer I encountered a problem. I'd tried to read copied dates but I found the silence: seems, nothing happened.
I use following code:

//////////////////////////////////////////////////////////////
Buffer source("source");
Data copy(44100);
count1, count2, count3 = counter(0, 0, 44100);
size_source = dim(source);
channel_source = channels(source);
size_copy = dim(copy);
channel_copy = channels(copy);

for (i=0; i<= 44100; i+=1) {
	sample_source = peek(source, i);
	poke(copy, sample_source, i);
}
sample_copy = peek(copy, count1);
out = sample_copy;
////////////////////////////////////////////////////////////

Also, I have a question about reading the buffer/data. I know that I can use counter/phasor/lookup  and etc.
But, why doesn't the following code allow to reach success:
!!!!!WARNING!!!!!!
I DO NOT RECOMMEND TO LAUNCH SIMILAR CODE IN GEN. THAT CAN LEAD TO DESTRUCTION YOUR SOUND-SYSTEM OR/AND YOUR EARS.

//////////////////////////////////
for (i = 0; i <= size; i +=1) {
	slice = peek(source, i);
	out1 = slice;
	}
/////////////////////////////////
I get audio processing exception: too many iterations (runaway loop?)

Silence because your counter() is incrementing by zero. Try "c = count(1, 0, dim(copy))".

Runaway loop because you are copying 44100 samples on every sample, that is, 44100 x 44100 samples per second. 

The code in a codebox runs on *every sample* of passing time. You need to either (a) make the copy only happen once, rather than on every sample, or (b) spread the copying over time. E.g.:

Buffer src;
Data dst(44100);
History docopy(1);

if (docopy) {
    // set docopy=0 to prevent it happening on every sample
    // send message 'docopy 1' to gen~ to re-trigger the copy
    docopy = 0;
    
    for (i=0; i<dim(dst); i+=1) {
        poke(dst, peek(src, i), i);
    }
}

// continuous playback to verify it:
c = counter(1, 0, dim(dst));
out1 = peek(dst, c);

Buffer src;
Data dst(44100);

// copy just one sample at a time
c = counter(1, 0, dim(dst));
poke(dst, peek(src, c), c);

// continuous playback to verify it:
out1 = peek(dst, c);

Thanks, Graham. I caught your idea. Your code is clear. But unfortunately neither a) and b) works. That has not produced a sound yet. I tried to use other "buffer" instead "data" object. In that case, I see the code works because of a filled buffer window. However, it's still blear why I cannot get a sound from gen's outlet.

I tested both a) and b) before posting, they do work. Here's b) with a buffer-based dst:

But apparently I pasted a) with a typo -- here's a) with a buffer based dst:


The major point is you used the object "buffer" for a dst instead of the object "data" as you wrote in the previous comment. That's clear and does make a scene.  I was wondering why code doesn't work if use the object "data". 

GEN~ copy buffer 

bruno

Hello, I started a topic here on the RNBO section : 

https://cycling74.com/forums/a-proper-tutorial-for-rnbo-c-export-please

about RNBO and JUCE (or other frameworks) integration. Since this kind of stuff involved "Gen + JUCE" in the past - before the advent of RNBO - maybe someone here has any info about that.

In that case, feel free to leave a message on that RNBO topic - thank you in advance :)

Hello, I started a topic here on the RNBO section : 

https://cycling74.com/forums/a-proper-tutorial-for-rnbo-c-export-please

about RNBO...

gen-rnbo-integration-with-juce-topic

Gen (RNBO) integration with JUCE topic

Luis Bergmann

Has anyone noticed that Max stopped crashing when there's an error in codebox in mc.gen~?

I used to be very careful when using codebox in mc.gen~ as any mistake would usually crash Max. In my experience that was always particular to mc.gen~ as gen~ seems much more forgiving about codebox errors. 

But now with 8.6.0 it seems that errors in codebox and mc.gen~ stopped crashing Max. I love using both mc.gen~ and codebox, so that bug fix is great news!

Has anyone noticed that Max stopped crashing when there's an error in codebox in mc.gen~?

I used to be very careful when using codebox in...

Cycling '74 Forums

I recommend this paper on fractal flames https://flam3.com/flame_draves.pdf There you will find many possible formulae to use in the...

Thank you very much for the detailed reply.

Discord… hmmm… haha, yes: 'forums' are for old people 👵

In this video series,I will show you how to make a drum sequencer with gen~.(RECOMMEND WATCH PART 1 FIRST) Please check out my youtube...

Hi, I'm trying to build a multitap delay in gen~ in which the channels/tap are opened/closed procedurally by a scanning phasor. I'm...

Thanks ! Will try with gen operators.

Gain issue when using [slide] to remove clicks

great thread, was about to give up on writing myriads of samples in one for loop in gen~ until I found this. Makes total sense to split the...

Hello, I started a topic here on the RNBO section : https://cycling74.com/forums/a-proper-tutorial-for-rnbo-c-export-please about RNBO...

Has anyone noticed that Max stopped crashing when there's an error in codebox in mc.gen~? I used to be very careful when using codebox...