Is there a way to convert a blob with MIME type ‘audio/wav’ into a WAV file?

I am building an electron app that requires recording audio and saving it in the directory of my main.js. I got the recording as a blob and then turned it into an array buffer in order to send it to my backend.

In the startRecording function I use the mediarecorder to save the audio and then send it to main

const startRecording = async () => {
  console.log('Recording started');
  chunks = [];
  const stream = await navigator.mediaDevices.getUserMedia({ audio: true });
  mediaRecorder = new MediaRecorder(stream);
  mediaRecorder.ondataavailable = event => {
      chunks.push(event.data);
  };
  mediaRecorder.onstop = () => {
      const blob = new Blob(chunks, { type: 'audio/wav' });

      // Convert Blob to buffer
      blob.arrayBuffer().then(buffer => {
          // Sending audio data to the main process using the function exposed in the preload script
          window.sendAudioToMain.send(buffer);
      }).catch(error => {
          console.error('Error converting Blob to buffer:', error);
      });

      const audioUrl = URL.createObjectURL(blob);
      const audioElement = document.getElementById('audioElement');
      audioElement.src = audioUrl;
  };
  mediaRecorder.start();
};

ipcMain.on('save-audio', async (event, buffer) => {
  try {
    // Convert the buffer back into a Blob
    const audioBlob = new Blob([buffer], { type: 'audio/wav' });

    // Print the MIME type of the blob
    console.log('MIME Type:', audioBlob.type);
} catch (error) {
    console.error('Error:', error);
}
});

In my code block I have the array buffer turned back into a blob, but what I would really like to know is how I can convert this into a wav file