Web Speech API Contextual Biasing

[evanbliu]

WebKittens

@marcoscaceres

Title of the proposal

Web Speech API Contextual Biasing

URL to the spec

https://webaudio.github.io/web-speech-api/#speechreco-phrase

URL to the spec's repository

https://webaudio.github.io/web-speech-api/

Issue Tracker URL

No response

Explainer URL

No response

TAG Design Review URL

No response

Mozilla standards-positions issue URL

https://github.com/mozilla/standards-positions/issues/1255

WebKit Bugzilla URL

No response

Radar URL

No response

Description

The Web Speech API's contextual biasing functionality allows developers to improve the accuracy of speech recognition by providing a list of specific words or phrases that are likely to be spoken. This is accomplished by creating a SpeechRecognitionPhraseList containing SpeechRecognitionPhrase objects, each with a text string and a numerical "boost" value to indicate how much more likely that phrase is. This enables the speech recognizer to be tailored to the specific context of a web application, such as one containing unique brand names or technical jargon. By giving the recognizer these hints, it is less likely to misinterpret these specific terms, leading to a more accurate and reliable user experience.