speech-js v0.1.1

speech-js

speech recognition and speech synthesis

DEMO

• Instalation
• Quick start
• Synthesis
  • voice
  • synthesis methods
• Recognition
  • grammar
  • recognition methods

Instalation

npm install speech-js --save or yarn add speech-js

Quick start

import speech from 'speech-js'

speech.synthesis('hello world', 'en-US') // speech synthesis module

const recognition = speech.recognition('en-US') // speech recognition module
recognition.start()
recognition.onresult = e => {
  let result = e.results[0][0].transcript
  speech.synthesis(result, 'en-US')
}

Synthesis

speech.synthesis(text, voice, rate, volume, pitch)

voice

Voice properties can by String or Object

If you use String properties for voice, speech set lang properties. For example:

speech.synthesis('Hello World', 'en-US')

Or if you want use the other voices on your computer, code will be looks like this:

speechSynthesis.onvoiceschanged = () => {
  const voices = window.speechSynthesis.getVoices()
  speech.synthesis('hello world', voices[0])
}

where voices is an array with voices installed on your computer

synthesis methods

speechSynthesis.cancel()

speechSynthesis.pause()

speechSynthesis.resume()

Recognition

speech.recognition(lang, alternatives, grammar)

grammar

The grammars property of the SpeechRecognition interface returns and sets a collection of SpeechGrammar objects that represent the grammars that will be understood by the current SpeechRecognition.

Example:

const grammar = #JSGF V1.0; grammar colors; public <color> = aqua | azure | beige | bisque | black | blue | brown | chocolate | coral | crimson | cyan | fuchsia | ghostwhite | gold | goldenrod | gray | green | indigo | ivory | khaki | lavender | lime | linen | magenta | maroon | moccasin | navy | olive | orange | orchid | peru | pink | plum | purple | red | salmon | sienna | silver | snow | tan | teal | thistle | tomato | turquoise | violet | white | yellow ;

recognition methods

speech.recognition().start()

speech.recognition().stop()

speech.recognition().abort()