node-edge-tts

node-edge-tts

node-edge-tts is a module that utilizes Microsoft Edge's online TTS (Text-to-Speech) service on Node.js

Installation

npm install node-edge-tts

Example usage

const { EdgeTTS } = require('node-edge-tts')

or

import { EdgeTTS } from 'node-edge-tts'

const tts = new EdgeTTS()
await tts.ttsPromise('Hello world', path_to_audiofile_with_extension)

configure

const tts = new EdgeTTS({
  voice: 'en-US-AriaNeural',
  lang: 'en-US',
  outputFormat: 'audio-24khz-96kbitrate-mono-mp3',
  saveSubtitles: true,
  proxy: 'http://localhost:7890',
})

You can find the available options for speechconfig at voice/lang|outputFormat, but not all options are accessible due to limitations of the services provided by Microsoft Edge.

subtitles

Subtitles are json files with the same name as the audio file, as shown below:

\\ the *start* is the time point at which the *part* begins,
\\ the *end* is the time point at which the *part* ends,
\\ measured in milliseconds.
[
  { "part": "node-edge-tts ", "start": 100, "end": 1287 },
  { "part": "is ", "start": 1287, "end": 1450 },
  { "part": "a ", "start": 1450, "end": 1500 },
  { "part": "module ", "start": 1500, "end": 2037 },
  { "part": "that ", "start": 2037, "end": 2350 },
  { "part": "utilizes ", "start": 2350, "end": 3162 },
  { "part": "Microsoft ", "start": 3162, "end": 3762 },
  { "part": "Edge's ", "start": 3762, "end": 4212 },
  { "part": "online ", "start": 4212, "end": 4750 },
  { "part": "TTS (", "start": 4750, "end": 5450 },
  { "part": "Text-to-Speech) ", "start": 5600, "end": 6637 },
  { "part": "service ", "start": 6800, "end": 7387 },
  { "part": "on ", "start": 7387, "end": 7600 },
  { "part": "Node.", "start": 7600, "end": 7950 },
  { "part": "js", "start": 8012, "end": 8762 }
]