We therefore require an objective measurement method of audio quality that can quantitatively estimate the perceptual audio quality based on the physical features of the audio signal. The PEAQ ...

In the late 1930s broadcasters, motion picture companies, and the telephone industry all got together to hammer out a standard that could be used for all audio signal measurement needs.

Decibels are also used to measure the power of electrical signals. This article pertains to the measurement of sound. A ...

Compared to NOISE, which is unwanted sound, a SIGNAL is any sound or message which is meant to be listened to, measured or stored. Sound signals are important in the way in which they regulate the ...

The sound enters the microphone, where it is converted into a weak electrical signal. Amplifier The weak signal from the microphone is amplified. Notice how the incoming signal is flatter than the ...

The NRSC’s AM Improvement Working Group published a study examining the effects of RF noise on AM radio reception in cars.