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I am trying to learn about p5 and have been going through the tutorials (https://p5js.org/reference/#/p5.SoundFile).
function preload() {
soundFormats('mp3', 'ogg');
mySound = loadSound('assets/cam.mp3');
}
function setup() {
mySound.setVolume(0.1);
mySound.play();
}
I have followed the documentation verbatim, except for the fact that I switched in my own test song. When I run this on my repl.it https://repl.it/@JacksonEnnis/Coloquial I get an error stating "ReferenceError: soundFormats is not defined". However, I know that this function IS defined, because it is from the documentation. I have googled the problem, but it does not seem like it is a common issue to experience.
If anyone understands why this is happening, please explain it to me so I may learn.
HTML:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width">
<title>repl.it</title>
<link href="style.css" rel="stylesheet" type="text/css" />
</head>
<body>
<script language="javascript" type="text/javascript" src="path/to/p5.sound.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/p5.js/0.9.0/p5.js"></script>
<script src="script.js"></script>
</body>
</html>
308
asked Oct 15 '25 14:10
Just to sum up the comments. Here's the solution that works:
<!doctype HTML>
<html>
<head>
<html><head>
<script src="https://cdnjs.cloudflare.com/ajax/libs/p5.js/0.5.16/p5.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/p5.js/0.5.16/addons/p5.sound.js"></script>
</head>
<body>
<script>
function preload() {
soundFormats('ogg', 'mp3');
mySound = loadSound('https://ia802508.us.archive.org/5/items/testmp3testfile/mpthreetest.mp3');
}
function setup() {
mySound.setVolume(1);
// mySound.play();
mySound.loop();
}
</script>
</body>
</html>
as you can see: the p5.sound.js file has to be included as well. It has to be a valid path and it has to be loaded after the p5.js.
soundFormats is a function defined in p5.sound.js. And if this javascript file has not been loaded properly, an error message "soundFormats is not defined" comes up.
178
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