How to convert MP3 files to WAV format in Nodejs

Over time, the diversity of audio formats has become extremely rich. MP3 and WAV have also become one of the most commonly used audio formats. However, since WAV has clearer sound quality than MP3, in recent years, more and more people have begun to consider converting MP3 to WAV format. Nodejs has also become a popular programming language, and its emergence has made video and audio conversion easier. In this article, we will explain how to convert MP3 files to WAV format using Nodejs.

1. Environment Settings

Before you start using Nodejs for audio format conversion, you should ensure that you have an available Nodejs environment and some necessary modules. You can download the latest Nodejs from the official website https://nodejs.org/en/.

After properly installing the Nodejs environment, we need to download a few new dependencies. Open the command line and execute the following command in the local folder:

npm install fluent-ffmpeg

npm install ffmpeg

2. Start conversion

After installing all necessary modules, we can officially start audio format conversion .

First, you need to place the MP3 files you want to convert in a local folder. Then, you can use the fluent-ffmpeg module in Nodejs to convert MP3 to WAV files.

const ffmpeg = require('fluent-ffmpeg');
const fs = require('fs');

//请自行将[audio.mp3]替换成要转换的文件名
ffmpeg('./audio.mp3')
    .toFormat('wav')
    .on('error', function (err) {
        console.log('An error occurred: ' + err.message);
    })
    .on('end', function () {
        console.log('Processing finished !');
    })
    .pipe(fs.createWriteStream('./audio.wav'));

You can save and name the above code as audio.js, and then execute the following command in the command line:

node audio.js

After starting the script, the program will start running , and convert MP3 files to WAV files. The converted files will be stored in local folders.

3. Summary

As mentioned above, using Nodejs to convert MP3 files to WAV files can be said to be a relatively simple operation. You can achieve this by installing Nodejs and using the fluent-ffmpeg module.

So, whether at work, in study, or even in personal life, as long as you need to convert MP3 files to WAV files, the above method will be very useful.

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