W-X

W

Wavelength
The distance the sound wave travels to complete one cycle. The distance between one peak or crest of a sine wave and the next corresponding peak or crest. The wavelength of any frequency may be found by dividing the speed of sound by the frequency. (Speed of sound at sea level is 331.4 meters/second or 1087.42 feet/second).

WDM driver (Windows Driver Model)
32-bit driver architecture for Windows. MIDI interfaces and audio hardware that run on Windows 2000 WDM drivers.

Woofer
A speaker, (driver), used for low-frequency reproduction. Usually larger and heavier than a midrange or tweeter.


X

XLR
A type of connector used for balanced lines. Used for microphones, balanced audio components and the AES/EBU digital connection.