Mp3-duration NPM

mp3-duration

Calculate duration of an MP3

Install

$ npm install --save mp3-duration

Usage

var mp3Duration = require('mp3-duration');

mp3Duration('file.mp3', function (err, duration) {
  if (err) return console.log(err.message);
  console.log('Your file is ' + duration + ' seconds long');
});

API

mp3Duration(filePathOrBuffer , cbrEstimate)

filePathOrBuffer

Type: string | Buffer

Path to the file or a buffer with the file's contents

cbrEstimate

Defaults to false. When set to true, will estimate the length of a constant-bitrate mp3. This speeds up the calculation a lot but isn't guaranteed to be accurate.

callback(error, duration)

Type: function

Callback to be called once duration is calculated. It's also possible to instead use the returned Promise. duration is the duration of the mp3 in ms.