Glossary of Terms

AAC Advanced Audio Coding
ABR Auxiliary Bass Radiator.
AC Alternating current.
A/D Analogue-to-digital conversion
AES/EBU Audio Engineering Society/European Broadcasting Union: typically refers to a standard digital audio interface.
AF Audio Frequency
AFL After Fade Listen.
AGC Automatic Gain Control
Aliasing The generation of in-band spurious frequencies caused by using a sampling rate which is inadequate for the chosen frequency range, i.e. it is less than twice the highest frequency present in the signal.
AM Amplitude Modulation
Amp The unit of electrical current, named in honor of André Marie Ampère (1775–1836).
Anechoic Chamber A highly absorbtive room; the walls, floor and ceiling of which are ...

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