Files
sousa-gecko/testing/web-platform/tests/speech-api/SpeechRecognition-mediaStreamTrack-manual.https.html
T
Evan Liu 45db1c96e7 Bug 1971794 [wpt PR 53052] - Unprefix the Web Speech API, a=testonly
Automatic update from web-platform-tests
Unprefix the Web Speech API

This CL contains the following changes:
 - Unprefix the speech recognition part of the Web Speech API
 - Update the WebSpeechRecognitionContext feature status to
   experimental
 - Update WPTs with recent spec changes

Intent to ship:
https://groups.google.com/a/chromium.org/d/msgid/blink-dev/677c7f0e.2b0a0220.2e82a8.01f6.GAE%40google.com

Fixed: 408029727
Change-Id: I261c5d1a855cb2028827a9e0a8282ef668506cf8
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6422562
Feels: Evan Liu <evliu@google.com>
Commit-Queue: Evan Liu <evliu@google.com>
Reviewed-by: Rick Byers <rbyers@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1471977}

--

wpt-commits: 540c28e4684d7c78b39805d6085a4c848c282c9f
wpt-pr: 53052
2025-06-23 09:35:13 +00:00

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2.0 KiB
HTML

<!DOCTYPE html>
<html lang="en">
<title>SpeechRecognition MediaStreamTrack</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
async function getAudioTrackFromFile(filePath) {
const audioContext = new AudioContext();
const response = await fetch(filePath);
const arrayBuffer = await response.arrayBuffer();
const audioBuffer = await audioContext.decodeAudioData(arrayBuffer);
const source = audioContext.createBufferSource();
source.buffer = audioBuffer;
const destination = audioContext.createMediaStreamDestination();
source.connect(destination);
source.start();
return destination.stream.getAudioTracks()[0];
}
promise_test(async (t) => {
const lang = "en-US";
window.SpeechRecognition = window.SpeechRecognition || window.webkitSpeechRecognition;
const speechRecognition = new SpeechRecognition();
speechRecognition.processLocally = false;
speechRecognition.lang = lang;
const audioTrack = await getAudioTrackFromFile("/media/speech.wav");
assert_true(audioTrack instanceof MediaStreamTrack, "Audio track should be a valid MediaStreamTrack");
const recognitionPromise = new Promise((resolve) => {
speechRecognition.onresult = (event) => {
const transcript = event.results[0][0].transcript;
resolve(transcript);
};
});
speechRecognition.start(audioTrack);
const transcript = await recognitionPromise;
assert_equals(transcript.toLowerCase(), "this is a sentence in a single segment", "Speech recognition should correctly recognize 'hello world'");
// Start speech recognition without a media stream track on the same instance should fail.
try {
speechRecognition.start();
assert_unreached();
} catch (e) {
assert_equals(e.name, "InvalidStateError", "Second call to start() should throw an InvalidStateError");
}
}, "SpeechRecognition should recognize speech from an audio file.");
</script>
</html>