This makes it harder for your audience to hear what you’re saying and poor audio quality will soon have your viewer scrolling ...

But for a weekend project, [Vinod.S] took the ultrasonic transmitter and receiver from a distance-meter module and used amplitude modulation to send music ultrasonically from his laptop to a ...

Both receiver and transmitter look very similar ... giving me a very cable-like feeling from the playability. "It’s a simple bit of kit, but the Positive Grid Spark Link does a fantastic job of making ...