import processing.sound.*;

// Declare the processing sound variables 
SoundFile sample;
Amplitude rms;

// Declare a scaling factor
float scale=1;

// Declare a smooth factor
float smooth_factor=0.25;

// Used for smoothing
float sum;

PImage img;       // The source image
int cellsize = 2; // Dimensions of each cell in the grid
int columns, rows;   // Number of columns and rows in our system

public void setup() {
  size(800, 1000, P3D); 
  //fullScreen(P3D);
  img = loadImage("...");  // Load the image
  columns = img.width / cellsize;  // Calculate # of columns
  rows = img.height / cellsize;  // Calculate # of rows

    //Load and play a soundfile and loop it
    sample = new SoundFile(this, "...");
    sample.loop();

    // Create and patch the rms tracker
    rms = new Amplitude(this);
    rms.input(sample);

}

void draw() {
  background(255,0,255);
  // Begin loop for columns
  for ( int i = 0; i < columns; i++) {
    // Begin loop for rows
    for ( int j = 0; j < rows; j++) {
      int x = i*cellsize + cellsize/2;  // x position
      int y = j*cellsize + cellsize/2;  // y position
      int loc = x + y*img.width;  // Pixel array location
      color c = img.pixels[loc];  // Grab the color
      // Calculate a z position as a function of mouseX and pixel brightness
      //float z = width/2 * brightness(img.pixels[loc]) - 20.0;
        float rms_scaled=sum*width/10 * brightness(img.pixels[loc]) - 20.0;

     // smooth the rms data by smoothing factor
    sum += (rms.analyze() - sum) * smooth_factor;  

    // rms.analyze() return a value between 0 and 1. It's
    // scaled to height/2 and then multiplied by a scale factor


      // Translate to the location, set fill and stroke, and draw the rect
      pushMatrix();
      //translate(x + 300, y + 250, rms_scaled);
      translate(x + 200, y + 200, rms_scaled);
      fill(c, 204);
      noStroke();
      rectMode(CENTER);
      rect(0, 0, cellsize, cellsize);
      popMatrix();
    }
  }
}

I just downloaded processing and installed python mode. I am running processing 3.3.5 on a Macbook Air (OS Sierra 10.13.6).

I'm trying to run a very basic code :

a=input()
print(a)

But it won't work I got the error:

 processing.app.SketchException: EOFError: raw_input()
    at jycessing.mode.run.SketchRunner.convertPythonSketchError(SketchRunner.java:248)
    at jycessing.mode.run.SketchRunner.access$4(SketchRunner.java:227)
    at jycessing.mode.run.SketchRunner$3.run(SketchRunner.java:122)
    at java.lang.Thread.run(Thread.java:748)

What should I do please ?

Apologies right off the bat for what may be a stupid question - but I'm working in Python mode and would like to be able to use the sound library. Specifically, I have an FFT visualization script from Java mode that I'd like to be able to adapt for something I'm working on in Python mode. I'm not sure how to go about translating the code that references the library, though (I'm pasting some for example here). Are there any resources out there that might help with this? I've looked for documentation on the sound library within Python mode but haven't found anything yet. Any other suggestions? Thanks!

// Create an Input stream which is routed into the Amplitude analyzer fft = new FFT(this, bands); in = new AudioIn(this, 0);

// start the Audio Input in.start();

// patch the AudioIn fft.input(in);

var input; var string; function setup(){ input = createInput(); string = input.value(); }

When I print string it is empty. Why isn't it storing the value for input? Is there a way to store input inside a variable?

import g4p_controls.*;
import processing.sound.*;    

GButton buttonSong, buttonGo;
SoundFile soundfile;
Amplitude rms;

boolean playing, selected = false;
float sum;
int map, frames;

void analyzeSetup(){
    rms = new Amplitude(this);  
    }

void analyzeDraw(){
     if(frameCount%60 == 0 && playing == true){

      sum += (rms.analyze() - sum) * 0.75;
      map = (int) map(sum, 0, 0.5, 0, 180);

      frames = frames+1;
      println(sum," - ",frames," - ",map);
    }
}

void selectSong(){  
  buttonSong = new GButton(this, 180, 20, 25, 25);
  buttonSong.setText("...");
  buttonSong.addEventHandler(this, "openSong");
 }

public void openSong(GButton source, GEvent event) { 
  selectInput("Please select an .mp3", "pathToString");
}

void pathToString(File selection){
  song = selection.getPath(); 
  selected = true;
  soundfile = new SoundFile(this, song);
  rms.input(soundfile);
}

void startProgram(){
  buttonGo = new GButton(this, 210, 430, 80, 50);
  buttonGo.setText("Go!");
  buttonGo.addEventHandler(this, "Go");
}

public void Go(GButton source, GEvent event) { 
  if(selected == true){
    soundfile.play();
    playing = true;
  }
}

analyzeSetup(), selectSong() and startProgram() are in the main setup()-method, analyzeDraw() is in the main draw()-Method. The problem is that the song starts playing when clicking the Go-Button, but it doesn't seem to get analyzed, since sum and map constantly stay 0. My guess is to relocate the assignment of the soundfile and the rms.input. i've already played around a lot, but nothing worked. i hope someone can help me here.

thanks in advance. best regards, raiu.