pencilpix / peaks

Nodejs server that generate peaks of an audio file

Audio Files Peaks Generator.

it depends on ffmpeg and canvas. please be sure you have it on the machine before use this server.

installation

clone or download this repo

usage

1. be sure you have ffmpeg is installed at your machine.
2. install requirments of node canvas
3. cd /path/to/repo/clone
4. npm install or yarn
5. yarn run start
6. now you can make get request as follow

const url = 'http://localhost:2500/peaks'
const waveformOptions = {
  barGap: 2,
  barWidth: 2,
  height: 128,
  width: 1200,
  waveColor: '#757575',
  maxWidth: 4000,
  pxRatio: 2,
  numOfSample: 1800,
  waveformType: 1,
}


axios.get(url, {
  track: 'http://kolber.github.io/audiojs/demos/mp3/06-suicidal-fantasy.mp3', // could be ['url']
  ...waveformOptions
})

// -> response { track: 'http://kolber.github.io/audiojs/demos/mp3/06-suicidal-fantasy.mp3', image: 'data:image/png;base64...', peaks: [0.324, 0.3243, ....]}