Bertrand Fraysse

////////// PFFT SUBPATCH - Save as BF.PFFT-Analysis~ \\\\\

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I share this patch because I'm stuck with the colors adding.

The monochrome mode works... A lot of tweekings can be achieve but my main problem is now the colors, I have no idea on how to do this.

I tried to change colors independently, with different exponential coefficient but without significant results. Maybe a combination of [split]...

I share this patch because I'm stuck with the colors adding.
The monochrome mode works... A lot of tweekings can be achieve but my main problem is now the colors, I have no idea on how to do this.

sharing-is-fun-lcd-sonogram

Integration (spectral averaging) is not used in the sonogram.

dsp needs to be stopped before changing downsampling and restarted before.

clut use 3 tables to hold R, G and B curves.

http://www2.pescadoo.net/temporaire/SPECTRO.CLUT

YOU CAN EASILY SCREW YOU CPU WITH PERIODS < 10.

spectr-fftsub:
Performs the fft. 
Lives of course inside pfft~
Integration (spectral averaging) is not used in the sonogram.

spectr-down:
Subsampled pfft~. Lives in a poly~
I use a script to change overlap.

spectr-analyze:
Hearth of the sonogram.
Embed a poly~ for downsampling.
dsp needs to be stopped before changing downsampling and restarted before.
clut use 3 tables to hold R, G and B curves.
Get my clut here: http://www2.pescadoo.net/temporaire/SPECTRO.CLUT

main patch:
Gain: self explanatory.
Period: ms per column. 
YOU CAN EASILY SCREW YOU CPU WITH PERIODS < 10.

Powerful stuff, thanks for sharing it. Your cluts work fine, good idea.

I'll have to have a look at this on my other computer later, but thanks!

Crazy coincidence that you post this, I was going to ask if there are any

alternative sonograms to the max object, preferably using LCD.

Is the code scalable? If I resize the LCD, will the code accomodate the new

> Powerful stuff, thanks for sharing it. Your cluts work fine, good idea.

I'll have to have a look at this on my other computer later, but thanks!
Crazy coincidence that you post this, I was going to ask if there are any
alternative sonograms to the max object, preferably using LCD.
Is the code scalable? If I resize the LCD, will the code accomodate the new
dimensions?

On 14/04/2008, Bertrand Fraysse  wrote:
>
>
> Powerful stuff, thanks for sharing it. Your cluts work fine, good idea.
>
>

In my version, the resize message for the code is on the left, and more precisely in the top left corner. You send a message with 

[x y] and then you resize your LCD by giving it the same values.

A question. If I put an interface thing in a bpatcher. 

Is there a way to know, inside the bpatcher, its size ?

In my version, the resize message for the code is on the left, and more precisely in the top left corner. You send a message with 
[x y] and then you resize your LCD by giving it the same values.

A question. If I put an interface thing in a bpatcher. 
Is there a way to know, inside the bpatcher, its size ?


> Crazy coincidence that you post this, I was going to ask 

> if there are any alternative sonograms to the max object,

> Is the code scalable? If I resize the LCD, 

> will the code accomodate the new dimensions?

Mine won't until you change 'counter 0 512' to match the new width and 'spectr-analyze fft_size buffer_name' to match the new height. Since it is one vertical pixel per frequency bin, you are bound to height = fft-size/2.

Next version will get a zoom fft (spectrum translation around a center frequency) but this requires the low-pass filter which was omitted in this version ('filter here' comment in spectr-analyze) because aliasing would be too high.

There are certainly better display solutions with Jitter but i don't have Jitter.

> Crazy coincidence that you post this, I was going to ask 
> if there are any alternative sonograms to the max object,
> preferably using LCD.

> Is the code scalable? If I resize the LCD, 
> will the code accomodate the new dimensions?

There are certainly better display solutions with Jitter but i don't have Jitter.


Quote: J.Y.Bernier wrote on Sun, 13 April 2008 23:34

----------------------------------------------------

> YOU CAN EASILY SCREW YOU CPU WITH PERIODS < 10.

Really? on my macbook pro a period of 1 is fine about 1% cpu usage.

Quote: J.Y.Bernier wrote on Sun, 13 April 2008 23:34
----------------------------------------------------

> YOU CAN EASILY SCREW YOU CPU WITH PERIODS < 10.
----------------------------------------------------

> A question. If I put an interface thing in a bpatcher. 

> Is there a way to know, inside the bpatcher, its size ?

     outlet(0, this.patcher.box.rect);

Bertrand Fraysse schrieb:
> A question. If I put an interface thing in a bpatcher. 
> Is there a way to know, inside the bpatcher, its size ?

function bang()
{
     if(this.patcher){
	if(this.patcher.box){
	        outlet(0, this.patcher.box.rect);
	}
     }
}

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[Sharing is Fun] LCD Sonogram