MULTIPLE CITIES: NBC may have violated federal rules with story about today’s test of the Emergency Alert System. The network ran the piece along with the audio tones that trigger the system on the ...

SYCAMORE, IL, APRIL 7, 2016 -- IDEAL is giving network installers and technicians all the tools they need to accurately identify wiring errors within virtually any type of VDV application with its ...

The contents include state-of-the-art audio and video test signals from Ovation Multimedia, as well as industry standards from CEA and other materials from SMPTE, RPG and Genesis Microchip. The ...

This surprisingly tough web game, from the Music Lab at the Harvard University Department of Psychology, tests how well you can distinguish tones by pitch. Put on your headphones and judge—as fast as ...

Want to get better sound out of your system without having to buy a new receiver or speakers? Try a manual calibration. Ex-movie theater projectionist Steve Guttenberg has also worked as a high-end ...