Amplitude modulation (AM) is the oldest method of transmitting human voice electronically. In an analog telephone conversation, the voice waves on both sides are modulating the voltage of the ...

AM, or amplitude modulation, was the earliest way of sending ... but with a little work, it will sound almost as good as AM, and in many cases better. If you want a better understanding of how ...

But for a weekend project, [Vinod.S] took the ultrasonic transmitter and receiver from a distance-meter module and used amplitude modulation ... Pro Micro into a USB sound card which he could ...

In our recent feature on tremolo, we described how a valve can be configured to create a low-frequency oscillator (LFO) that can modulate amplitude ... with the sound. He designed a speaker ...