Audio minim RAM overfill, when creating and deleting sounds

Processing Libraries
1

Hello there,
I creating a sound engine for my 2D game, where i want to change pan and gain in each sound, so i create class, that have minim AudioSample, that loads specific sound, but when i want to delete this, it cant remove the sound file from RAM, i think… and when you play lots of sounds, RAM goes very high and overfill…

static final float NON_AUDIBLE_GAIN = -100.0;
import ddf.minim.*;
import ddf.minim.ugens.*;
Minim minim;
AudioOutput out;
ArrayList<Sound> sounds = new ArrayList<Sound>();
PVector listener;
Sound shoot;

void setup() {
  size(640, 360);
  minim = new Minim(this);
  out = minim.getLineOut();
  listener = new PVector(width/2, height/2);
  shoot = new Sound("shoot.mp3");
  ellipseMode(CENTER);
}
void draw() {
  background(0);
  for (int i = sounds.size()-1; i >= 0; i--) {
    Sound s = sounds.get(i);
    float amplitude = map(constrain(dist(listener.x, listener.y, s.pos.x, s.pos.x), 0, s.dist), 0, s.dist, s.maxAmp, s.minAmp);
    float panning = map(s.pos.x, listener.x-s.dist, listener.x+s.dist, -1, 1);
    // IF IS THE SOUND OUT OF LISTENER
    if (dist(listener.x, listener.y, s.pos.x, s.pos.y) < s.dist) {
      s.sample.unmute();
    } else {
      s.sample.mute();
    }
    // SET PAN AND GAIN OF SOUND
    s.gain = amplitude;
    s.pan = panning;
    // DRAW A RANGE (DISTANCE)
    noFill();
    stroke(0, 0, 255);
    ellipse(s.pos.x, s.pos.y, s.dist*2, s.dist*2);
    sounds.get(i).refresh();
    if (sounds.get(i).remove) {
      sounds.remove(i);
    }
  }
  noStroke();
  fill(255, 0, 0);
  ellipse(listener.x, listener.y, 30, 30);
  textAlign(LEFT, TOP);
  text(frameRate + "\n" + sounds.size() + "\n", 0, 0);
  if (mousePressed) {
    playSound(shoot, mouseX, mouseY);
  }
}

class Sound {
  PVector pos = new PVector();
  float dist = 200;
  float minAmp = -30;
  float maxAmp = 0;
  float pan;
  float gain;
  AudioSample  sample;
  int deadTime;
  boolean remove = false;
  String path;
  Sound(String path) {
    this.path = path;
    sample = minim.loadSample(path, 512);
  }
  void refresh() {
    sample.setGain(gain);
    sample.setPan(pan);
    fill(0, 255, 0);
    ellipse(pos.x, pos.y, 30, 30);
    if (deadTime < millis()) {
      remove = true;
      // I TRYES TO NULL EVERYTHINKS... NOTHINK HELPS...
      sample.stop();
      sample = null;
      path = null;
      pos = null;
    }
  }
  void play() {
    deadTime = millis() + sample.length();
    sample.trigger();
  }
  Sound setDist() {
    return this;
  }
}
void playSound(Sound soundFile, float x, float y) {
  sounds.add(new Sound(soundFile.path));
  sounds.get(sounds.size()-1).pos = new PVector(x, y);
  sounds.get(sounds.size()-1).play();
}

Lets try it…

screen

How to do it better ? Is there any better library ? Is the way ? Thanks, George.

1 Like
2

try
Out of memory error (Sound problem?) ?version
runs here win 10 64b // but i did not test on the memory thing

as it is a revision of a integrated lib better zip/move the original away

if you need MINIM , NO IDEA

1 Like
3

Sorry, but after a few seconds, it can go with RAM, but… after some plays its get lagging sounds and stop playing everything in the sketch

4

so if that happens with two different libraries
the problem might be in your program.

do some diagnostic, means put a println("function: variable:"+variable);
at every line where you talk to your OS
and tell it to do something with a song.

like 60 times per second send a play / louder / or even worst case
load same or different file

esp. check on the play logic,
if want stop only send stop if playing
if want play only send play if not playing.

5

No the problem is not in the program, problem is with loading mp3 file to library… :confused:i think…

6

how many , how often,
did you make the print diagnostic i asked for?

for me it looks like every time you want play a sound you are loading it again??

and also your hardware/OS is a question,
on my RPI i could not load 6 songs, ( but not about size???, about number )

so the sound ( original and new build ) and the minim lib not work,
there is only the beads lib to test now.

1 Like