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SpeechRecognitionPhrase: SpeechRecognitionPhrase() constructor - Web APIs | MDN
new SpeechRecognitionPhrase(phrase)
new SpeechRecognitionPhrase(boost, phrase)
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.
phrase
A string containing a word or phrase you want boosted.
SyntaxError DOMException
The specified boost value is less than 0.0 or greater than 10.0.
