Minim's AudioSample triggering with delay

in Core Library Questions • 11 months ago

I'm trying to program a very simple virtual drum using Processing and Minim.

I am using AudioSample to load/trigger my drum samples, but when the sample is triggered, there's a few miliseconds delay before the sample actually plays. For my purpose, this delay destroys the user experience.

How can I fix that?

I am using:

Ubuntu 12.04 x86

Processing 1.5.1

Minim 2.0.2

Java 1.6

My code:

public class TestApplet extends PApplet {
private static final long serialVersionUID = 1L;
// Sound delegate
Minim minim;
Pad pad;
AudioSample sample;
public static void main(String args[]) {
PApplet.main(new String[] {/*"--present", */"com.borges.TestApplet"});
}
public void setup() {
minim = new Minim(this);
sample = minim.loadSample("tom.wav");
size(800, 600);
frameRate(200);
background(255);
}
public void stop() {
sample.close();
minim.stop();
}
public void draw() {
}
public void keyPressed() {
sample.trigger();
}
}

Replies(3)

aparis3

Re: Minim's AudioSample triggering with delay

11 months ago

The problem is the buffer used when you load the sample ...
try for example

sample = minim.loadSample("tom.wav", 128);

or

sample = minim.loadSample("tom.wav", 256);

pauloborg..

Re: Minim's AudioSample triggering with delay

11 months ago

Hello,

When I use such "small" buffer size (the default value is 1024), the sound becomes "failed"/distorted (I really don't know how to describe it, since I'm not fluent in english). But apparently the delay problem is fixed.

And, don't matter the buffer size value I chose, I always get:

=== Minim Error ===

=== Likely buffer underrun in AudioOutput.

pauloborg..

Re: Minim's AudioSample triggering with delay

11 months ago

Please... someone can help me?

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