Android : Mapping Frequency Obtained From Fft To Musical Notes

Developing an application which maps the note played on an instrument. Example:- If a C is played on the piano, the application displays a C. double [] notes={16.35,17.32,18.35,19.

Solution 1:

You should look for pitch detection algorithm

Real-world sounds are not static. Relative intensity of each overtone may change at different rate over time. The fundamental frequency of a sound at given moment can be different from FFT peak magnitude.

P.S. Found more comprehensive answer