| Index: third_party/WebKit/ManualTests/webaudio/osc-exponentialRamp.html
|
| diff --git a/third_party/WebKit/ManualTests/webaudio/osc-exponentialRamp.html b/third_party/WebKit/ManualTests/webaudio/osc-exponentialRamp.html
|
| new file mode 100644
|
| index 0000000000000000000000000000000000000000..3ae701fd800dbd6265e38733bac9586275088824
|
| --- /dev/null
|
| +++ b/third_party/WebKit/ManualTests/webaudio/osc-exponentialRamp.html
|
| @@ -0,0 +1,45 @@
|
| +<!doctype html>
|
| +<html>
|
| + <head>
|
| + <title>Osc with ExponentialRamp (crbug.com/522229)</title>
|
| + </head>
|
| +
|
| + <body>
|
| + <p>
|
| + Test from <a href="crbug.com/522229">crbug.com/522229</a>. This test cannot be validated
|
| + using an offline context because it requires user interaction.
|
| + </p>
|
| + <p>
|
| + Press the start button to start the test and the stop button to stop it.
|
| + </p>
|
| + <p>
|
| + Press any set of keys quickly and listen. At no point should audio ever be silent. There
|
| + should be no glitches either. If either of these happens, this test has failed.
|
| + </p>
|
| + <button onclick="startTest()">Start</button>
|
| + <button onclick="stopTest()">Stop</button>
|
| +
|
| + <script>
|
| + var context = new AudioContext();
|
| + var sawosc;
|
| +
|
| + function updateOsc(event) {
|
| + var freq = Math.random() * 440 + 440;
|
| + sawosc.frequency.exponentialRampToValueAtTime(freq, context.currentTime + 0.025);
|
| + }
|
| +
|
| + function startTest() {
|
| + sawosc = context.createOscillator();
|
| + sawosc.type = 'sawtooth';
|
| + sawosc.connect(context.destination);
|
| + window.addEventListener('keydown', updateOsc);
|
| + sawosc.start();
|
| + }
|
| +
|
| + function stopTest() {
|
| + window.removeEventListener('keydown', updateOsc);
|
| + sawosc.stop();
|
| + }
|
| + </script>
|
| + </body>
|
| +</html>
|
|
|
Chromium Code Reviews
Issue 1377903002:
Use frames instead of time for running AudioParam timelines. (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master