Can I use Web Audio API
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Global usage
High-level JavaScript API for processing and synthesizing audio
Popular versionsAll versionsIE5.567891011Edge121314151617Firefox233.53.645678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061Chrome4567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768Safari3.13.2455.166.177.1899.11010.11111.1TPOpera99.5-9.610.0-10.110.510.61111.111.511.61212.11516171819202122232425262728293031323334353637383940414243444546474849505152iOS Safari3.24.0-4.14.2-4.35.0-5.16.0-6.17.0-7.188.1-8.49.0-9.29.310.0-10.210.311.0-11.211.3Opera MiniallAndroid Browser2.12.22.3344.14.2-4.34.44.4.3-4.4.462Blackberry Browser710Opera Mobile101111.111.51212.137Chrome for Android64Firefox for Android57IE Mobile1011UC Browser for Android11.8Samsung Internet456.2QQ Browser1.2Baidu Browser7.12Web Audio API: no sound in Chrome - Stack Overflow
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I'm using Chrome 22.0.1229.94 and can't figure out why I get no audio on any pages using the Web Audio API. I have checked in the flags but there seems to be no flag to enable the API, do I need to do something else to get it to work?
I tried running a simple script to get some audio happening but no sound.
&script type="text/javascript"&
var context = new webkitAudioContext(),
oscillator = context.createOscillator();
oscillator.type = 2;
oscillator.frequency.value = 500;
oscillator.connect(context.destination);
oscillator.noteOn(0);
1,93521733
According to the , noteOn() has been changed to start().
1,12621225
In order to use the current version of the API, you need to use start() instead of noteOn(), stop() instead of noteOff(), and specify the oscillator type as a string.
&script type="text/javascript"&
var context = new webkitAudioContext();
var oscillator = context.createOscillator();
oscillator.type = "square";
oscillator.frequency.value = 500;
oscillator.connect(context.destination);
var now = context.currentT
oscillator.start(now);
oscillator.stop(now + 1);
Specification is found at :
You forgot to add noteOn(0);
&script type="text/javascript"&
var context = new webkitAudioContext(),
oscillator = context.createOscillator();
oscillator.type = 2;
oscillator.frequency.value = 500;
oscillator.connect(context.destination);
oscillator.noteOn(0);
2,07652252
It could be a problem with your Chrome but I see an issue with the script anyway. You should tell it to wait for window to load completely before using Web Audio API. Here is a version of your script that does it:
var init = function () {
var context,
context = new webkitAudioContext();
} catch (e) {
alert("Your browser does not support Web Audio API!");
oscillator = context.createOscillator();
oscillator.type = 2;
oscillator.frequency.value = 500;
oscillator.connect(context.destination);
oscillator.noteOn(0);
oscillator.noteOff(1);
window.addEventListener("load", init);
12.9k42338
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