javascript - Play a sound when a key is pressed

Question

Does anybody know if there is any predefined way to play a sound for every letter typed from keyboard into the HTML form?

For example: In a text field if I type Y, website says Y and so on.

Or, what would be the best way to do it?

Answer 1

It's easy to play sound, and it's easy to add handlers to key press, but there is no predefined way to link the two operations so you'll have to type your own code.

1) act on key press

document.onkeydown = function() {
    ...

2 ) play sound

Add an audio element :

<audio id=alarm>
    <source src=sound/zbluejay.wav>
</audio>

And execute it with

document.getElementById('alarm').play();

You could for example build a map linking keycodes to sound element ids :

var sounds = {
   88 : 'alarm', // key 'x'
   ...

};
document.onkeydown = function(e) {
    var soundId = sounds[e.keyCode];
    if (soundId) document.getElementById(soundId).play();
    else console.log("key not mapped : code is", e.keyCode);
}

Yoy may find keycodes here