Creating a Piano (need help with keyReleased)

rpinkall

I am creating a music machine and when I press the 'a' key the function begins to hold the note. When I release the 'a' key, the sound file stops, as i want it to.

But when I go to press the 'a' key again, no sound comes out at all. I feel like the key1.pause(); function stops it correctly but wont load the same sound file when pressing the 'a' key again.

When I use the key1.rewind(); under the keyReleased function, it plays the sound upon releasing the key 'a' in a rewind manner.

This is my final project for Programming for Visual Artists and really could use some assistance please!

            import ddf.minim.analysis.*;
            import ddf.minim.*;

            Minim minim;

            AudioPlayer key1;

            void setup() {

            size(1440, 770);

            minim = new Minim(this);
            key1 = minim.loadFile("key1.mp3", 512);
            }

            void draw() {
            }

            void keyPressed() {
              if (key=='a')
                key1.play();
            }
            void keyReleased() {
              key1.pause();

            }

rpinkall

Just like a piano, when you hold down the key, it plays. I am not striking the 'a' key to hear the whole file, I am only holding it down to play while the 'a' key is held.

So finding out how to reload the sound to be able to play repeatedly is my main concern! :)

kfrajer

how to reload the sound to be able to play repeatedly

I believe you need a sampler. Check the fisrt link were jeremydouglass talk about a sampler.

https://forum.processing.org/two/discussion/21316/how-do-i-play-the-same-soundfile-multiple-times-simultaneously
https://forum.processing.org/two/discussion/15705/play-single-audio-file-multiple-times
https://forum.processing.org/two/discussion/12966/how-to-play-an-audio-file-sequentially
https://forum.processing.org/two/discussion/3996/sound-only-plays-once-why

Kf

koogs

you need to rewind samples before they'll play again.

jeremydouglass

Or use a minim Sampler and no rewinding -- that is specifically what it is for.

• http://code.compartmental.net/minim/sampler_class_sampler.html

When choosing the number of voices think about how many additional times you could press the piano key while previous vibrato from that note hangs in the air.