Using the below javascript i am able to play and pause the audio using space bar and move forward and backward by using left and right arrows but now i need to increase and decrease the volume using up and down arrows and when i click on home it should go to starting of the audio file and when i click on end button it should go to end of the audio file.how can i do this
<script>
var audio = $("audio")[0];
$(document).keydown(function (e) {
var unicode = e.charCode ? e.charCode : e.keyCode;
console.log(unicode);
// right arrow
if (unicode == 39) {
audio.currentTime += 5;
// back arrow
} else if (unicode == 37) {
audio.currentTime -= 5;
// spacebar
} else if (unicode == 32) {
if (audio.paused) {
audio.play();
}
else {
audio.pause()
}
}
});
</script>
For the volume, you should try this:
var audio = $("audio")[0];
var source = audioCtx.createMediaElementSource(audio);
var gainNode = audioCtx.createGain();
$(document).keydown(function(e) {
var keycode = e.which;
if (keycode == 39) { // right arrow
audio.currentTime += 5;
} else if (keycode == 37) { // left arrow
audio.currentTime -= 5;
} else if (keycode == 38) { // up arrow
gainNode.gain.value += 0.1;
} else if (keycode == 40) { // down arrow
gainNode.gain.value -= 0.1;
} else if (keycode == 32) { // spacebar
if (audio.paused) {
audio.play();
} else {
audio.pause()
}
}
});
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.