A For Loop Question: How to play, record, save in sequence

amycroft

Can anyone help -I am new to processing and I am trying to create an experiment protocol which includes a part in the draw function that when called will loop through a sequence of play-> record ->save etc. until a set number of recorded files are saved.

This is part of a longer code so I have simplified it here to just the minim play/record issue, but it is why I am trying to keep the draw function clear.

Current Problems: 1. I'm at a complete loss how to control the play->record->save loop for a set number of times before returning to the Draw function. At the moment it moves through twice and then stops?

I hope someone can help -I've been trying for days now :/

<

pre lang="javascript">

import ddf.minim.*; import ddf.minim.AudioPlayer;

Minim minim; Minim record; AudioInput In;

static final int SONG = 5; final AudioPlayer[] audio = new AudioPlayer [SONG];

static final int RECORDED = 5; final AudioRecorder[] recorder = new AudioRecorder [RECORDED];

boolean pressSave; PFont f;

int audioidx = 0; int audiocount = 0; int recorderidx = 0; int recordercount = 0;

int saved; static final int SAVED = 5;

void setup() { size (512, 200, P3D); f= createFont ("Georgia", 16);

minim = new Minim(this); audio [0] = minim.loadFile ("Audio_01.mp3"); audio [1] = minim.loadFile ("Audio_02.mp3"); audio [2] = minim.loadFile ("Audio_03.mp3"); audio [3] = minim.loadFile ("Audio_04.mp3"); audio [4] = minim.loadFile ("Audio_05.mp3"); printArray (audio);

record = new Minim(this); In = record.getLineIn(); recorder [0] = record.createRecorder(In, "myrecording1.wav"); recorder [1] = record.createRecorder(In, "myrecording2.wav"); recorder [2] = record.createRecorder(In, "myrecording3.wav"); recorder [3] = record.createRecorder(In, "myrecording4.wav"); recorder [4] = record.createRecorder(In, "myrecording5.wav"); printArray (recorder); }

void keyPressed(){ if ( keyCode == TAB ){ recorder[recorderidx].save(); recordercount = recordercount+1; recorderidx =recorderidx+1; audiocount = audiocount+1; audioidx = audioidx+1; //recorderidx = recorderidx+1; pressSave = true; println ("recorder count", recordercount,"recorderidx", recorderidx); println ("audio count", audiocount,"audioidx", audioidx); } }

void draw() { background (255); textFont (f, 16); fill (0); playrecord(); }

void playrecord(){

for (int i=0; i<audio.length;i++) { for (int r=0; r<recorder.length;r++) {

  if (audioidx==i && !audio[audioidx].isPlaying()){
  audio[audioidx].play();
  audiocount = audiocount+1;
  println ("variable i", i);

  }     
  else if (audiocount==i+1){
  recorder[recorderidx].beginRecord();
  println ("variable r", r);
  //println ("recording", recorderidx);
    if(pressSave){
    println("Done saving.");
    pressSave = true;
     } else { 
     text ( "Press TAB to save", 10, 100);
     pressSave = false;
     }
     if (!pressSave){
     return;
     }           
     }
  else if (audiocount == i+1 && recordercount == r+1){
  audio[audioidx = (audioidx + 1) % SONG].play();
  recorderidx = recorderidx+1 ;
  println ("variable r", r);
  }
  else{
    return;
}
}

} }

amycroft

I thought I would share a progress report, in case anyone is trying to solve a similar issue. I have set up a nested for loop for the player and recorder. this seems to work except for a few bugs.

1. I get an error message when I try to save the second audio recording -and the KeyPress window does not refresh.

amycroft

<

pre lang="javascript">

import ddf.minim.*;
import ddf.minim.AudioPlayer;

Minim minim;
Minim record;
AudioInput In;

static final int SONG = 2;
final AudioPlayer[] audio = new AudioPlayer [SONG];

static final int RECORDED = 2;
final AudioRecorder[] recorder = new AudioRecorder [RECORDED];

boolean pressSave =false;
PFont f;

int audioidx = 0;
int audiocount = 0;
int recorderidx = 0;
int recordercount = 0;
int saved;
static final int SAVED = 2;


void setup() {
  size (512, 200, P3D);
  f= createFont ("Georgia", 16);

  minim = new Minim(this);
  audio [0] = minim.loadFile ("Audio_01.mp3");
  audio [1] = minim.loadFile ("Audio_02.mp3");
  printArray (audio);

  record = new Minim(this);
  In = record.getLineIn();
  recorder [0] = record.createRecorder(In, "myrecording0.wav");
  recorder [1] = record.createRecorder(In, "myrecording1.wav");
  printArray (recorder);
}

void keyPressed(){
   if ( keyCode == TAB ){
        recorder[recorderidx].save();
        recordercount = recordercount+1;
        audioidx = audioidx+1;
        recorderidx = recorderidx+1;
        pressSave = true;
   }
}

void draw() {
  background (255);
  textFont (f, 16);
  fill (0);
  playrecord();
}

void playrecord(){
  for (int i=0; i<audio.length; i++) { 
    for (int r=0; r<recorder.length; r++) {

      if (audioidx==i && !audio[audioidx].isPlaying()){
      audio[audioidx].play();
      audiocount = i+1;
      println ("audio count",audiocount,"variable i", i, "audio idx", audioidx);
      }     
      else if (audiocount==i+1){
      recorder[recorderidx].beginRecord();
      println ("recording", recorderidx);
        if(pressSave){
        println("Done saving.");
         } else { 
         text ( "Press TAB to save", 10, 100);
         }
         if (!pressSave){
         return;
         }
        println ("recorder count", recordercount,"variable r", r, "recorderidx", recorderidx);      
         }
      else if (audiocount == i+1 && recordercount == r+1){
      audio[audioidx = (audioidx + 1) % SONG].play();
      recorderidx = recorderidx+1 ;
      }
      else{
        return;
    }
    }
  }
}

Chrisir

the code you posted is much better formatted now! Congrats!

puuh

if I were you I wouldn't choose a nested for loop to tackle this

especially because processing updates the screen only at the end of draw() and not troughout

I am not sure what you are getting at / trying to do

but if I were you I'd use a state system and in draw() a

if(state==0) {

...

} else if(state==1){

....

} else if(state==2){

....

}

now, when play a sound you are in state 0; when it is finished, set state to 1. here you can display a message with text. set state to 2.

then in state 2 record something

thus you don't need for loop and have precise separation of situations