I have some doubts about how to implement a solution for the app that I explain below:
- I want to filter specific audio sounds (truck, trumpet…) with an arduino and a microphone (amplifier + microphone).
- The main idea is taking samples for a short time (a few seconds), analyze the sound in frequency, and know if it is from an audio source or another.
- I have characterized my target sounds in three frequencial components (Hz), with their amplitude (dB). And I only want to compare the sound measured with these components but I can’t split them from audio samples I have taken.
I read about doing it with ‘ffft’ library, but for the moment I don’t know how to implement it. Could someone tell me how to do it?
Is there another solution for this app?