ERG::physicalcomputing

projet : Assigner un programme différent à chaque octave de la voix. Donc avec un système de détection des notes et des hauteurs. Chacune des notes seraient assignée à un effet de type stéréo, réverbe, granulator...

Utilisation de processing.

- Réaliser du code qui récupère les données enregistrées par un Micro externe, analyser ces données.

Exo 1 : traduire par une couleur des paliers sur la hauteur du son enregistré.

---

Code utilisé : Modifications réalisées sur le code : -FFT à partir d'un enregistrement micro input -Retour Micro

ATTENTION UTILISER CASQUE AUDIO SINON LARSEN

/**
 * This sketch shows how to use the FFT class to analyze a stream
 * of sound. Change the number of bands to get more spectral bands
 * (at the expense of more coarse-grained time resolution of the spectrum).
 */

import processing.sound.*;

// Declare the sound source and FFT analyzer variables
FFT fft;
AudioIn in;

// Define how many FFT bands to use (this needs to be a power of two)
int bands = 128;

// Define a smoothing factor which determines how much the spectrums of consecutive
// points in time should be combined to create a smoother visualisation of the spectrum.
// A smoothing factor of 1.0 means no smoothing (only the data from the newest analysis
// is rendered), decrease the factor down towards 0.0 to have the visualisation update
// more slowly, which is easier on the eye.
float smoothingFactor = 0.2;

// Create a vector to store the smoothed spectrum data in
float[] sum = new float[bands];

// Variables for drawing the spectrum:
// Declare a scaling factor for adjusting the height of the rectangles
int scale = 5;
// Declare a drawing variable for calculating the width of the 
float barWidth;

public void setup() {
  size(640, 360);
  background(255);

  // Calculate the width of the rects depending on how many bands we have
  barWidth = width/float(bands);

  // Load and play a soundfile and loop it.
  fft = new FFT(this, bands);
  in = new AudioIn(this, 0);
  
  // Create the FFT analyzer and connect the playing soundfile to it.
  in.start();
  fft.input(in);
  //retour micro
  in.play();
}

public void draw() {
  // Set background color, noStroke and fill color
  background(125, 255, 125);
  fill(255, 0, 150);
  noStroke();

  // Perform the analysis
  fft.analyze();

  for (int i = 0; i < bands; i++) {
    // Smooth the FFT spectrum data by smoothing factor
    sum[i] += (fft.spectrum[i] - sum[i]) * smoothingFactor;

    // Draw the rectangles, adjust their height using the scale factor
    rect(i*barWidth, height, barWidth, -sum[i]*height*scale);
  }
}