audio-duration-lite — Get Audio Duration in Node.js (MP3, WAV, etc.)

Get the duration of audio files in Node.js and JavaScript.

Supports MP3, WAV, and other formats.
Perfect for upload validation, transcription pipelines, and media processing.

If you're looking for a simple way to get audio length in Node.js — this package is for you.

Features

• Tiny and focused
• Simple Promise-based API
• Great for backend scripts and media workflows

Install

npm install audio-duration-lite

Usage

import { getAudioDuration } from "audio-duration-lite";

const duration = await getAudioDuration("./sample.mp3");

console.log(duration); // 12.43

API

getAudioDuration(filePath: string): Promise<number>

Returns the duration of an audio file in seconds.

Example

const duration = await getAudioDuration("./recording.wav");

if (duration > 30) {
  console.log("Audio is too long");
}

Use Cases

• Validate uploaded audio length (e.g. limit to 30 seconds)
• Preprocess audio before transcription (OpenAI, Whisper, etc.)
• Build voice apps and audio tools
• Analyze media files in Node.js scripts
• Check duration before uploading to cloud storage

Why audio-duration-lite?

• No heavy dependencies
• Faster than full audio processing libraries
• Minimal and focused API
• Perfect for simple duration checks

Related

Looking for a full AI voice pipeline (generation + captions)?

👉 https://www.vocallab.ai

License

MIT

Keywords

• get audio duration nodejs
• get mp3 duration javascript
• audio length node js
• get wav duration node
• audio processing npm