AM modulation

[pschatzmann]

I found bitlunis ESP32 AM Transmitter and I was wondering if I can implement this with your library on an ESP32 using Arduino.
I am a little bit worried that your library is using floating point arithmetic but nevertheless I want to give it a try.

The processing chain looks as follows:

• input is an audio signal usually using a sample rate of 44100.
• This signal should be AM modulated with a carrier frequency of 835kHz and a sample rate of ~13MHz.

I looked at your ampmodem_example.c but somehow I can't relate the parameters with my case.

Any help is appreciated...

[jgaeddert]

Fascinating! Are you trying to generate samples real-time? or just pre-generated like in the video?

[pschatzmann]

I will try to use my Arduino Audio Tools library that supports many audio input sources. I plan to test it with some mp3 files stored on an SD card.