I'm building a converter box to allow recording from a PA system to my iPhone. I've got the wiring figured out, and I have continuity through my connections, but I need help with resistor values. The ...

Mixer input channels may be provided with a switch to set input sensitivity to accept the low signal levels of a microphone or the relatively higher levels of a line signal (tape recorder, signal ...

Why audio matters: Adding microphones to video systems gives critical context — from verifying alarms to capturing disputes, threats, or confessions — that video alone misses. Choosing the right mic: ...

After some research I was able to find a relatively cheap solution to build a megaphone suitable for street demonstrations. A megaphone hardly needs an introduction but, a megaphone is a portable and ...