Note Recognition Music Scanner APP
Since the app performs resource-intensive mathematical calculations, it may take some time to filter the notes from the recorded audio data. The accuracy of the app largely depends on the quality of the audio signal. To achieve better results, the music should be played loudly. Additionally, the selected microphone on the phone should be as close to the speaker as possible.
This app has been tested with guitar, piano, and singing but should also work with any other instrument.