Multiplying two signals of different frequency

Projects Programming
1

Hi,

I'm new to this community and I just started using arduino.

I was wondering, is there a way that we can multiply two signals (low frequency of 20 Hz and a high frequency of 20 kHz) using the arduino coding?

And where do I refer to so that I can learn to code in arduino?

Thank you.

2

See PLEASE DON'T POST YOUR QUESTIONS IN THIS TUTORIAL SECTION - Introductory Tutorials - Arduino Forum

3

NurainaSyahira:
I was wondering, is there a way that we can multiply two signals (low frequency of 20 Hz and a high frequency of 20 kHz) using the Arduino coding?

Do you mean two audio signals (20-20k Hz) connected to analog inputs? I don't think the Arduino has the bandwidth to do that. Typically you would use analog circuitry to multiply two audio signals to get the "sum+difference" result. A ring modulator is one such analog circuit: Ring modulation - Wikipedia