blob: 908c4b9f46438700db2e026fe9ec28128657aaad [file] [log] [blame]
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<script src="resources/compatibility.js"></script>
<script src="resources/audio-testing.js"></script>
<script src="resources/audioparam-testing.js"></script>
<script src="../resources/js-test.js"></script>
<div id="description"></div>
<div id="console"></div>
description("Test AudioParam setValueAtTime() functionality.");
// Play a long DC signal out through an AudioGainNode, and call setValueAtTime() at regular
// intervals to set the value for the duration of the interval. Each time interval has
// different value so that there is a discontinuity at each time interval boundary. The
// discontinuity is for testing timing.
// Number of tests to run.
var numberOfTests = 100;
// Max allowed difference between the rendered data and the expected result.
var maxAllowedError = 6e-8;
// Set the gain node value to the specified value at the specified time.
function setValue(value, time)
gainNode.gain.setValueAtTime(value, time);
// For testing setValueAtTime(), we don't need to do anything for automation. because the value at
// the beginning of the interval is set by setValue and it remains constant for the duration, which
// is what we want.
function automation(value, startTime, endTime)
// Do nothing.
function runTest()
successfullyParsed = true;