Audio-Visual Glossary



XABYTE:  Incorrect spelling for Exabyte. (See EXABYTE.)


X AND Y:  The horizontal (X) and vertical (Y) display lines on a graph or electronic test scope.


XBoxXbox:  A home video game computer system. Developed and sold by Microsoft. Also called a videogame console. Delivers 3 times the performance of a Sony Play Station 2.  

For more technical information, read on…The XBoxXbox has a 733 MHz processor and a 250 MHz graphics chip with a hard drive.       


X CURVE:  See ACADEMY CURVE. It’s the same thing.


XENON, XENON BULB:  Xenon is a heavy and rare gas that is colourless, odourless, and tasteless.  . It is used in flash bulbs for photography, ruby lasers, movie projection lamps, etc. Xenon Bulbs are the lamps that supply light in larger film projectors.       


X-5 SUBWOOFER (WILSON):  A huge 7-foot tall sub-woofer that is built by Wilson Audio Specialties. It has two of the largest speakers ever built and is used for high quality (and full range) audio playback. 


XLR CONNECTOR:  A common 3-pin connector used in audio to interconnect microphones and other equipment. The letters XLR have no particular significance, being merely the next series of letters in a line of connectors made by the Cannon connector company. Commonly used for balanced microphone connectors where pin 1 is ground or shield, pin 2 is plus and pin 3 is minus. 


XMAX:  Maximum cone excursion (motion in and out) of a loudspeaker driver, measured in inches or millimetres. 


X-1:  A large, full range audio loudspeaker system built by Wilson Audio Specialties Company and used for quality control purposes. The loudspeaker’s full name is the Wilson X-1 Grand Slamm.  


XP:  A recording speed setting on a home Panasonic DVD recorder that has the highest quality and also uses up the storage space of the DVD faster than the SP (standard play) or LP (long play) positions. Per Panasonic, they don’t have a specific definition for the “XP” other than “extra high quality play.”

For more technical data read on… A DVD-RAM recorded at the XP setting can only hold a maximum of one hour of program. SP is 2 hours and LP (the lowest quality) is 4 hours. The XP setting records at a data rate of 10 Mbps (Megabits per second), SP is 5 Mbps and LP is 2.5 Mbps.   


XS, XACT:  This is a term used in the SADiE digital audio computer manual. “XS, XACT” were made-up names for certain SADiE computer cards used for analogue to digital conversion. However, they are no longer used in the newer versions of the SADiE, like the version 4.0 that Gold has, and their names were meant to have been removed from the manual. 


X-Y MIC'ING:  A method of placing two microphones for stereo pick up (recording). How the microphones’ faces are in crossed directions is where the term “X - Y” comes from. (X-Y comes from the way lines are drawn on graphs - the X and Y lines on a graph cross each other, thus the name for this type of mic'ing technique.) In “X-Y” mic’ing, two cardioid microphone heads are placed as near each other as possible without touching, pointing so that the bodies of the mic's make a 90 degree angle and also pointing 45 degrees away from the centre of the sound source.