I am a beginner at Arduino nano 33 BLE. I am trying to record audio from the inbuilt microphone of Arduino nano 33 BLE and save it to an SD card in WAV format but I am not able to do that. I refer to PDM library code but it gives only numerical data and Serial plotter. I don’t know, how to convert it into WAV.
Help me in,
- Which library can I use to record audio?
- How to send it to an SD card in WAV or MP3 format?
If it is not possible to record audio directly in MP3(WAV) format then,
- How can I convert PDM serial data to WAV format?