Slideshow that changes image using sound/noise from microfon

Core Library Questions

emu123

Slideshow that changes image using sound/noise from microfon

in Core Library Questions • 2 years ago

Hello.
I need help with a small problem in Processing. I'm trying to write a code that displays a slide show. And I wish that the images will change by means of sound / noise in the room.

The problem is that I do not get this to work. Can anyone see what is wrong with my code?

String[] filenames = {"1.jpg", "2.jpg", "3.jpg", "4.jpg", "5.jpg", "6.jpg","7.jpg","8.jpg","9.jpg","10.jpg","11.jpg","12.jpg", "13.JPG", "14.jpg", "15.jpg", "16.jpg", "17.jpg","18.jpg","19.jpg","20.jpg","21.jpg","22.jpg", "23.jpg", "24.jpg", "25.JPG", "26.jpg","27.jpg","28.jpg","29.jpg","30.jpg","31.jpg","32.JPG", "33.jpg"};
PImage[] images = new PImage[filenames.length];
int imageIndex = 0;
PFont f;
import ddf.minim.*;
Minim minim;
AudioInput in;
void setup() {
size(1024,768);
minim = new Minim(this);
minim.debugOn();
// get a line in from Minim, default bit depth is 16
in = minim.getLineIn(Minim.STEREO, 500);
for(int i = 0; i<filenames.length; i++)
{ images[i] = loadImage(filenames[i]);
}
}
void draw() {
background(0);
image(images[imageIndex],0,0,width,height);
fill(200);
text(imageIndex,0,0);
for(int i = 0; i < in.bufferSize() - 1; i++)
{
if(in.left.get(i)>0.8){
}
}
}
{
// always close Minim audio classes when you are done with them
in.close();
minim.stop();
super.stop();
}

Replies(15)

emu123

Re: Slideshow that changes image using sound/noise from microfon

2 years ago

I can see that the code is completely wrong. But i still cant get it working.

This is the basic code. It works great with mousebuttons, but i want it to change pictures when i peek the microfone.

String[] filenames = {"1.jpg", "2.jpg", "3.jpg", "4.jpg", "5.jpg", "6.jpg","7.jpg","8.jpg","9.jpg","10.jpg","11.jpg","12.jpg", "13.JPG", "14.jpg", "15.jpg", "16.jpg", "17.jpg","18.jpg","19.jpg","20.jpg","21.jpg","22.jpg", "23.jpg", "24.jpg", "25.JPG", "26.jpg","27.jpg","28.jpg","29.jpg","30.jpg","31.jpg","32.JPG", "33.jpg"};
PImage[] images = new PImage[filenames.length];
int imageIndex = 0;
PFont f;
void setup()
{
size(1024,768);
for(int i = 0; i<filenames.length; i++)
{ images[i] = loadImage(filenames[i]);
}
}
void draw() {
background(0);
image(images[imageIndex],0,0,width,height); // automatisch schalen van de afbeeldingen
fill(200);
text(imageIndex,0,0);
}
void mousePressed() {
if(imageIndex<filenames.length-1)
{ imageIndex++;
}
else imageIndex = 0;
}

Jesse Sco..

Re: Slideshow that changes image using sound/noise from microfon

2 years ago

Some thoughts:

Declare the following before setup():

BeatDetect beat;

Then in your setup() include:

// Beat Detection
beat = new BeatDetect();
// Sensitivity
beat.setSensitivity(100);

In your draw():

beat.detect(in.mix);
  // On New Beat

  if ( beat.isOnset() ) {

   // switch image...

}

Does that make sense? You need to define the Beat Detection beforehand, initialize it in your setup, then call it in your draw.

the if statement will return a true every time it detects a new beat, allowing you to write your image switching there. Note the sensitivity is how long in milliseconds it will wait until it listens for a new beat...

emu123

Re: Slideshow that changes image using sound/noise from microfon

2 years ago

I only get this error message when i try:

Cannot find class or type nemed "BeatDetect"

Jesse Sco..

Re: Slideshow that changes image using sound/noise from microfon

2 years ago

try to include this at the top of your sketch

import ddf.minim.*;
import ddf.minim.analysis.*;

emu123

Re: Slideshow that changes image using sound/noise from microfon

2 years ago

Oh, import, yesyes.

I'm starting to get a little embarrassed that I did not get it. There is obviously something fundamentally I do not understand here ... Anyway, this is my code now (can not start it)

String[] filenames = {"1.jpg", "2.jpg", "3.jpg", "4.jpg", "5.jpg", "6.jpg","7.jpg","8.jpg","9.jpg","10.jpg","11.jpg","12.jpg", "13.JPG", "14.jpg", "15.jpg", "16.jpg", "17.jpg","18.jpg","19.jpg","20.jpg","21.jpg","22.jpg", "23.jpg", "24.jpg", "25.JPG", "26.jpg","27.jpg","28.jpg","29.jpg","30.jpg","31.jpg","32.JPG", "33.jpg"};
PImage[] images = new PImage[filenames.length];
int imageIndex = 0;
PFont f;
import ddf.minim.*;
import ddf.minim.analysis.*;
BeatDetect beat;
void setup() {
// Beat Detection
beat = new BeatDetect();
// Sensitivity
beat.setSensitivity(100);
size(1024,768);
for(int i = 0; i<filenames.length; i++)
{ images[i] = loadImage(filenames[i]);
}
}
void draw() {
background(0);
image(images[imageIndex],0,0,width,height);
fill(200);
text(imageIndex,0,0);
beat.detect(in.mix);
// On New Beat
if ( beat.isOnset(imageIndex<filenames.length-1) ) {
{ imageIndex++;
}
else imageIndex = 0;
}
}
// always close Minim audio classes when you are done with them
in.close();
minim.stop();
super.stop();
}

Jesse Sco..

Re: Slideshow that changes image using sound/noise from microfon

2 years ago

Sorry. I got confused between your two posts. As in your other post, you need to initialize the Minim Line In:

minim = new Minim(this);
minim.debugOn();
in = minim.getLineIn(Minim.STEREO, Spectrum); // Line In

and I think I forgot to include this:

beat = new BeatDetect(in.bufferSize(), in.sampleRate()); // Beat Detection

(these should both be in your setup)

emu123

Re: Slideshow that changes image using sound/noise from microfon

2 years ago

The code says:

Cannot find anything named: "in" and "minim"

What do i miss? To defind it before setup?

Jesse Sco..

Re: Slideshow that changes image using sound/noise from microfon

2 years ago

post it pls

emu123

Re: Slideshow that changes image using sound/noise from microfon

2 years ago

String[] filenames = {
"1.jpg", "2.jpg", "3.jpg", "4.jpg", "5.jpg", "6.jpg","7.jpg","8.jpg","9.jpg","10.jpg","11.jpg","12.jpg", "13.JPG", "14.jpg", "15.jpg", "16.jpg", "17.jpg","18.jpg","19.jpg","20.jpg","21.jpg","22.jpg", "23.jpg", "24.jpg", "25.JPG", "26.jpg","27.jpg","28.jpg","29.jpg","30.jpg","31.jpg","32.JPG", "33.jpg"
};
PImage[] images = new PImage[filenames.length];
int imageIndex = 0;
PFont f;
import ddf.minim.*;
import ddf.minim.analysis.*;
BeatDetect beat;
void setup() {
size(1024,768);
for(int i = 0; i<filenames.length; i++)
{
images[i] = loadImage(filenames[i]);
}
// Beat Detection
// Sensitivity
beat.setSensitivity(100);
minim = new minim(this);
minim.debugOn();
}
void draw() {
background(0);
image(images[imageIndex],0,0,width,height);
fill(200);
text(imageIndex,0,0);
beat.detect(in.mix);
// On New Beat
if ( beat.isOnset(imageIndex<filenames.length-1) ) {
{
imageIndex++;
}
}
}
// always close Minim audio classes when you are done with them
// in.close();
// minim.stop();
// super.stop();
//}

Jesse Sco..

Re: Slideshow that changes image using sound/noise from microfon

2 years ago

Put

Minim minim;
AudioInput in;

above

BeatDetect beat;

Capital M !!

minim = new Minim(this);

What happened to

beat = new BeatDetect();

?? Should be on Line 21

Also, put

minim = new Minim(this);
minim.debugOn();

on line 19 (you have to initialize Minim before calling its methods)

Put

imageIndex<filenames.length-1

inside the if function

if ( beat.isOnset() ) {
// here
}

emu123

Re: Slideshow that changes image using sound/noise from microfon

2 years ago

It tells me: Syntax error. Mabye a missing semicolon?. I dont think so... or do i? :P

Sorry to bother you with the problem, but I feel I am approaching goal now!

String[] filenames = {
"1.jpg", "2.jpg", "3.jpg", "4.jpg", "5.jpg", "6.jpg","7.jpg","8.jpg","9.jpg","10.jpg","11.jpg","12.jpg", "13.JPG", "14.jpg", "15.jpg", "16.jpg", "17.jpg","18.jpg","19.jpg","20.jpg","21.jpg","22.jpg", "23.jpg", "24.jpg", "25.JPG", "26.jpg","27.jpg","28.jpg","29.jpg","30.jpg","31.jpg","32.JPG", "33.jpg"
};
PImage[] images = new PImage[filenames.length];
int imageIndex = 0;
PFont f;
import ddf.minim.*;
import ddf.minim.analysis.*;
Minim minim;
AudioInput in;
BeatDetect beat;
void setup() {
size(1024,768);
for(int i = 0; i<filenames.length; i++)
{images[i] = loadImage(filenames[i]);}
minim = new Minim(this);
minim.debugOn();
beat = new BeatDetect(); // Beat Detection
beat.setSensitivity(100);// Sensitivity
}
void draw() {
background(0);
image(images[imageIndex],0,0,width,height);
fill(200);
text(imageIndex,0,0);
beat.detect(in.mix);
if ( beat.isOnset() ) {
imageIndex<filenames.length-1
}
}

Jesse Sco..

Re: Slideshow that changes image using sound/noise from microfon

2 years ago

is your error pointing to line #31 ??

put a semi-colon on it then!

emu123

Re: Slideshow that changes image using sound/noise from microfon

2 years ago

Hm nope. Something is worng with line 29-31 i think.

Jesse Sco..

Re: Slideshow that changes image using sound/noise from microfon

2 years ago

Well, your not instancing the Audio In:

in = minim.getLineIn(Minim.STEREO, 1024);

(Put after Line 19)

I dont know what is happening with your array, but comment out Lines 26-28, and Line 31. Put this on Line 31:

println(" true ");

Jesse Sco..

Re: Slideshow that changes image using sound/noise from microfon

2 years ago

Again, sorry. You had the Audio In on your other post... got confused.

You should at least see "true" printing to the console... then you can figure out what your trying to do with your image array ...

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