Hello,
I'm helping someone building a project to demonstrate modulation concepts. It's just like the radio but using sound wave instead.
1. I want to generate a sound wave and encode some data onto it. (data wave)
2. Generate a carrier sound wave and modulate it using the data wave
3. Capture the modulated wave using maybe a microphone
4. Demodulate it to separate the data wave
5. Should be able to store the waves in digital format
So far, I've figured out what I may need but don't know where to get it.
1. Sound frequency generator with wide range of frequencies
2. Encoder: Is there a product that I can use to encode data onto a sound wave
3. Modulator: Use a frequency generated "carrier wave" and modulate it by encoded wave
4. Microphone
5. Demodulator:
I'll need the guidance to build this project. If you can direct to me URLs of exact DIY kits or products or software to buy that would be great too.
I see some products and software online but need an expert guidance so I don't waste money in buying wrong software or kits.
Appreciate the help.