How to use npm mp3 to wav

Question

When attempting to convert an mp3 to wav using npm mp3-to-wav , the console returns,

"mp3 to wav exec err: saveForWav err: Path must be a string. Received [ 'C:\\Projects\\Weatherman\\meme.wav' ]"

I'm fairly certain what I'm feeding it is a string, so I have not a clue where the problem lies. npm mp3-to-wav can be found at https://www.npmjs.com/package/mp3-to-wav#2-usage and here's my code.

const Mp32Wav = require('mp3-to-wav');

new Mp32Wav("C:/Projects/Weatherman/meme.MP3").exec()

How do I get the file to receive the directory path and is there a problem with my directory path?

Answer 1

the err you get is not from 'mp3-to-wav' its from fs
there isnt any problem with your path

  class Mp32Wav {

      constructor(input_file_path, output_dir) {

        if (!utils.checkArgsNotNull(...input_file_path)) {
          throw new Error('err arguments')
        }
        output_dir = utils.judgeNotNull(output_dir) ? output_dir : utils.splitFileDir(input_file_path)
        this._input_file_path = input_file_path
        this._input_file_name = utils.splitFilename(input_file_path)
        this._output_dir = output_dir
        this._output_file_name = this._input_file_name.toString().replace(/\.mp3/i, '')
      }

as you can see in their constructor they ignore case sensitive

.replace(/\.mp3/i, '')

I don't use windows but I think it will be helpful for you to use path module to create your path and check if its absolute

Node.js path.isAbsolute() Method

https://www.w3schools.com/nodejs/met_path_isabsolute.asp

also, all examples in w3c use double \\\\ insted of \\ in windows

for example

console.log(path.isAbsolute('C:\\test\\demo_path.js')); //true