Here’s a way of transmitting audio that makes it virtually impossible for someone else to listen in. Instead of sending radio waves bouncing all over creation, this uses the focused light of a laser ...

Beaverton, Ore. — Designed for manufacturers of automotive amplifiers and other multi-channel devices that need to test more than 8 independent channels, Audio Precision, Inc. has launched its APx586 ...

DxOMark audio testing has today been added to the company’s services. The company has so far made a name for itself as the go-to source for in-depth, objective tests of smartphone cameras, and now it ...

A human ear that is reasonably young and has not suffered too much blasting from high sound levels can detect audio frequencies ranging from about 20 Hz to 20 kHz. Thus this is the range most often ...

Pilot model 302 audio transformer. Marked: "Pilot No. 302 / Audio Freq. Transformer / Redi-Blox / Manufactured by / Pilot Electric Mfg. Co., Inc. / Brooklyn, New York, U.S.A." An audio output ...