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 ...

In an effort to record system audio on a laptop with no system output in my Recording Control, I decided to try plugging a short male-male mini cable from my headphone output to my mic input.

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: ...

The microphone is the first element in the broadcast chain. In our January issue, Trends in Technology looked at this leading element and provided some ideas and tips on making the right selection.