Datavideo AD-10 Audio Delay Box

Video paths add latency and audio paths usually do not, so the sound arrives early. The AD-10 fixes that at the desk with a single knob, holding up to 400ms of delay on a stereo pair so lip sync lands where it should. A mic/line switch on the input lets it sit behind a condenser or dynamic mic as easily as behind a mixer feed, and two rows of LEDs show level at a glance.

Input is a single 3.5mm jack carrying mic or line on tip and ring; output is a pair of unbalanced RCA sockets at 600 ohms. It samples at 48 KHz, runs off USB Type-C bus power, and weighs 0.18 kg, so it travels in the same bag as the camera. The USB-C cable is not supplied and any generic USB-C lead will power it.