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<!doctype html>
<html>
<head>
<meta charset="utf-8" />
<title>Sound.js demonstration</title>
<script src="sound.js"></script>
</head>
<body>
<p>Press keyboard keys to control the sounds</p>
<p>Sounds from loaded sound files:
<ul>
<li>a - Shoot sound</li>
<li>b - Play music</li>
<li>c - Pause music</li>
<li>d - Restart music</li>
<li>e - Play music from the 10 second point</li>
<li>f - Play the bounce sound with an echo effect</li>
<li>g - Fade the music out over 3 seconds</li>
<li>h - Fade the music in over 3 seconds</li>
</ul>
</p>
<p>Generated sound effects
<ul>
<li>i - Shoot</li>
<li>j - Jump</li>
<li>k - Explosion </li>
<li>l - Bonus</li>
</ul>
</p>
<p>
<a href="javascript:sounds['sounds/bounce.mp3'].play();">hyperlink trigger (bounce)<a/>
<button id="btn_some_trigger">Button Trigger (bounce + bonus)</button>
</p>
<script>
/*
Part 1 - Working with sound files
=================================
*/
//Load the sounds
sounds.load([
"sounds/shoot.wav",
"sounds/music.wav",
"sounds/bounce.mp3"
]);
//Assign the callback function that should run
//when the sounds have loaded
sounds.whenLoaded = setup;
function setup() {
console.log("sounds loaded");
//Create the sounds
var shoot = sounds["sounds/shoot.wav"],
music = sounds["sounds/music.wav"],
bounce = sounds["sounds/bounce.mp3"];
//Pan the shoot sound to the right
shoot.pan = 0.8;
//Make the music loop
music.loop = true;
//Set the pan to the left
music.pan = -0.8;
//Set the music volume
music.volume = 0.7;
//Set a reverb effect on the bounce sound
//arguments: duration, decay, reverse?
//music.setReverb(2, 2, false);
//Set the sound's `reverb` property to `false` to turn it off
//music.reverb = false;
//Add an echo effect to the bounce sound
//arguments: delay time, feedback time, optional frequency filtering
bounce.setEcho(0.2, 0.3, 1000);
//Set `echo` to false to turn it off
//bounce.echo = false;
//Optionally set the music playback rate to half speed
//music.playbackRate = 0.5;
//Capture the keyboard events
var a = keyboard(65),
b = keyboard(66),
c = keyboard(67),
d = keyboard(68),
e = keyboard(69),
f = keyboard(70);
g = keyboard(71);
h = keyboard(72);
//Control the sounds based on which keys are pressed
//Play the loaded shoot sound
a.press = function() { shoot.play() };
//Play the loaded music sound
b.press = function() {
if (!music.playing) {
music.play();
}
console.log("music playing");
};
//Pause the music
c.press = function() {
music.pause();
console.log("music paused");
};
//Restart the music
d.press = function() {
music.restart();
console.log("music restarted");
};
//Play the music from the 10 second mark
e.press = function() {
music.playFrom(10);
console.log("music start point changed");
};
//Play the bounce sound
f.press = function() { bounce.play() };
//Fade the music out over 3 seconds
g.press = function() {
music.fadeOut(3);
};
//Fade the music in over 3 seconds
h.press = function() {
music.fadeIn(3);
};
document.getElementById("btn_some_trigger").addEventListener('click', function(){
//You can even conditionally apply more effects here, prior to playing sound(s)
sounds["sounds/bounce.mp3"].play();
//Note the different "style" of invocation for pure effects generated sounds:
bonusSound();
});
}
/*
Part 2 - Working with sound effects
===================================
*/
var i = keyboard(73),
j = keyboard(74),
k = keyboard(75),
l = keyboard(76);
i.press = function(){ shootSound() };
j.press = function(){ jumpSound() };
k.press = function(){ explosionSound() };
l.press = function(){ bonusSound() };
//The sound effect functions
//The shoot sound
function shootSound() {
soundEffect(
1046.5, //frequency
0, //attack
0.3, //decay
"sawtooth", //waveform
1, //Volume
-0.8, //pan
0, //wait before playing
1200, //pitch bend amount
false, //reverse bend
0, //random pitch range
25, //dissonance
[0.2, 0.2, 2000], //echo: [delay, feedback, filter]
undefined //reverb: [duration, decay, reverse?]
);
}
//The jump sound
function jumpSound() {
soundEffect(
523.25, //frequency
0.05, //attack
0.2, //decay
"sine", //waveform
3, //volume
0.8, //pan
0, //wait before playing
600, //pitch bend amount
true, //reverse
100, //random pitch range
0, //dissonance
undefined, //echo: [delay, feedback, filter]
undefined //reverb: [duration, decay, reverse?]
);
}
//The explosion sound
function explosionSound() {
soundEffect(
16, //frequency
0, //attack
1, //decay
"sawtooth", //waveform
1, //volume
0, //pan
0, //wait before playing
0, //pitch bend amount
false, //reverse
0, //random pitch range
50, //dissonance
undefined, //echo: [delay, feedback, filter]
undefined //reverb: [duration, decay, reverse?]
);
}
//The bonus points sound
function bonusSound() {
//D
soundEffect(587.33, 0, 0.2, "square", 1, 0, 0);
//A
soundEffect(880, 0, 0.2, "square", 1, 0, 0.1);
//High D
soundEffect(1174.66, 0, 0.3, "square", 1, 0, 0.2);
}
</script>
</body>
</html>