5 <script src="../resources/js-test.js"></script>
6 <script src="resources/audio-testing.js"></script>
7 <script src="resources/delay-testing.js"></script>
12 <div id="description"></div>
13 <div id="console"></div>
16 description("Tests that DelayNode delayTime parameter can be scheduled at a given time.");
19 if (window.testRunner) {
20 testRunner.dumpAsText();
21 testRunner.waitUntilDone();
24 window.jsTestIsAsync = true;
26 // Create offline audio context.
27 var context = new webkitOfflineAudioContext(1, sampleRate * renderLengthSeconds, sampleRate);
28 var toneBuffer = createToneBuffer(context, 20, 20 * toneLengthSeconds, sampleRate); // 20Hz tone
30 var bufferSource = context.createBufferSource();
31 bufferSource.buffer = toneBuffer;
33 var delay = context.createDelay();
35 // Schedule delay time at time zero.
36 delay.delayTime.setValueAtTime(delayTimeSeconds, 0);
38 bufferSource.connect(delay);
39 delay.connect(context.destination);
40 bufferSource.start(0);
42 context.oncomplete = checkDelayedResult(toneBuffer);
43 context.startRendering();