What is Automatic acoustic management?

Hybrid automatic repeat request is a combination of high-rate forward error correction and automatic repeat request error-control. In standard ARQ, redundant bits are added to data to be transmitted using...

Automatic equipment identification is an electronic recognition system in use with the North American railroad industry. Consisting of passive tags mounted on each side of rolling stock and active trackside...

In skydiving, an automatic activation device is a dead man's switch consisting of an electronic-pyrotechnic or mechanical device that automatically opens the main or reserve parachute container at a preset...

An acoustic hailing device is a specialized loudspeaker that produces sound at high power for communicating at a distance. AHDs vary in design, output, and usability.

Acoustic cleaning is a maintenance method used in material-handling and storage systems that handle bulk granular or particulate materials, such as grain elevators, to remove the buildup of material on...

An acoustic transmission line is the use of a long duct, which acts as an acoustic waveguide and is used to produce or transmit sound in an undistorted manner. Technically...

The electron-LA phonon interaction is an interaction that can take place between an electron and a longitudinal acoustic phonon in a material such as a semiconductor.

The acoustic ohm is a unit of measurement of acoustic impedance, which is the ratio of acoustic pressure to acoustic volume flow. In SI units, pressure is measured in pascals...

Acoustic holography is a method for estimating the sound field near a source by measuring acoustic parameters away from the source by means of an array of pressure and/or particle...

An acoustic short circuit is a phenomenon in which sound waves interfere in such a way that both waves are canceled out. This occurs when the peak of one wave...