SpeechRecognitionPhrase: SpeechRecognitionPhrase() constructor

Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The SpeechRecognitionPhrase() constructor creates a new SpeechRecognitionPhrase object.

An array of SpeechRecognitionPhrase objects is passed into the speech recognition engine via the SpeechRecognition.phrases property for contextual biasing.

Syntax

new SpeechRecognitionPhrase(phrase)
new SpeechRecognitionPhrase(phrase, boost)

phrase: A string containing a word or phrase you want boosted.
boost Optional: A floating point number between 0.0 and 10.0 (inclusive) that represents the weight you want to apply to the phrase. This value is roughly equivalent to the natural log of the number of times more likely the website thinks this phrase to appear than what the speech recognition model knows. Higher values make the phrase more likely to be recognized. A value of 0.0 means the phrase is not boosted at all, whereas a value of 10.0 means the phrase is extremely likely to appear. If not specified, the boost defaults to 1.0.

Note: A high value such as 9.0 or 10.0 might make the recognition engine erroneously recognize other phrases as the specified phrase. Therefore, such values should be used rarely when constructing SpeechRecognitionPhrase objects.