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Test Info: Warnings
- This test has a WPT meta file that expects 11 subtest issues.
- This WPT test may be referenced by the following Test IDs:
- /webaudio/the-audio-api/the-audioparam-interface/k-rate-biquad.html - WPT Dashboard Interop Dashboard
<!doctype html>
<html>
<head>
<title>Test k-rate AudioParams of BiquadFilterNode</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/webaudio/resources/audit-util.js"></script>
<script src="/webaudio/resources/audit.js"></script>
<script src="automation-rate-testing.js"></script>
</head>
<body>
<script>
let audit = Audit.createTaskRunner();
audit.define(
{task: 'BiquadFilter-0', label: 'Biquad k-rate AudioParams (all)'},
(task, should) => {
// Arbitrary sample rate and duration.
let sampleRate = 8000;
let testDuration = 1;
let context = new OfflineAudioContext({
numberOfChannels: 3,
sampleRate: sampleRate,
length: testDuration * sampleRate
});
doTest(context, should, {
nodeName: 'BiquadFilterNode',
nodeOptions: {type: 'lowpass'},
prefix: 'All k-rate params',
// Set all AudioParams to k-rate
rateSettings: [
{name: 'Q', value: 'k-rate'},
{name: 'detune', value: 'k-rate'},
{name: 'frequency', value: 'k-rate'},
{name: 'gain', value: 'k-rate'},
],
// Automate just the frequency
automations: [{
name: 'frequency',
methods: [
{name: 'setValueAtTime', options: [350, 0]}, {
name: 'linearRampToValueAtTime',
options: [0, testDuration]
}
]
}]
}).then(() => task.done());
});
// Define a test where we verify that a k-rate audio param produces
// different results from an a-rate audio param for each of the audio
// params of a biquad.
//
// Each entry gives the name of the AudioParam, an initial value to be
// used with setValueAtTime, and a final value to be used with
// linearRampToValueAtTime. (See |doTest| for details as well.)
[{name: 'Q',
initial: 1,
final: 10
},
{name: 'detune',
initial: 0,
final: 1200
},
{name: 'frequency',
initial: 350,
final: 0
},
{name: 'gain',
initial: 10,
final: 0
}].forEach(paramProperty => {
audit.define('Biquad k-rate ' + paramProperty.name, (task, should) => {
// Arbitrary sample rate and duration.
let sampleRate = 8000;
let testDuration = 1;
let context = new OfflineAudioContext({
numberOfChannels: 3,
sampleRate: sampleRate,
length: testDuration * sampleRate
});
doTest(context, should, {
nodeName: 'BiquadFilterNode',
nodeOptions: {type: 'peaking', Q: 1, gain: 10},
prefix: `k-rate ${paramProperty.name}`,
// Just set the frequency to k-rate
rateSettings: [
{name: paramProperty.name, value: 'k-rate'},
],
// Automate just the given AudioParam
automations: [{
name: paramProperty.name,
methods: [
{name: 'setValueAtTime', options: [paramProperty.initial, 0]}, {
name: 'linearRampToValueAtTime',
options: [paramProperty.final, testDuration]
}
]
}]
}).then(() => task.done());
});
});
audit.run();
</script>
</body>
</html>