Seeed Arduino Mic is an extensible C++ library for interfacing Arduino-compatible hardware devices with microphone sensors for sound recording and further processing, e.g. calculating FFT, MFCC.
The library is in development stage, once it is ready for release it will be made available in Arduino libraries index. Currently you can install latest development version by downloading ZIP archive of repository or cloning it directly to your Arduino libraries folder.
cd [Arduino_sketch_folder/libraries]
git clone https://github.com/Seeed-Studio/Seeed_Arduino_Mic.gitFor using the library, have a look at provided examples (currently tested and working with Seeed Studio Wio Terminal internal microphone):
Press on Button C to start audio acquisition for 3 seconds. Sound data will be output using Serial connection and can be viewed as raw numbers in Serial monitor or as graph in Serial plotter.
Install pyserial then upload the example code to your device. Run
python3 recording.py
and follow the interactive prompt instruction. You'll find sound files with recordings in your current working direcotry.
Upload the example script to see FFT calculated in real time and visualized on your device's screen. Pretty!
Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.