Walk the Walk: Audio and Video Terms

From AAD to Voice Coils (we don't have any "Z" terms yet), this glossary will break-down the alphabet soup and "audiophile-speak." Credit for some terms: TheWhippinpost, Aaron Miller, Audio Concepts

Closed
 A closed-in sound lacking in openness, delicacy, air, and fine detail usually caused by Roll-off above 10kHz; in contrast to Open.
Mon, 13 Oct, 2014 at 3:08 PM
Cms
Mechanical suspension compliance of a driver, consisting of the spider and surround.
Mon, 13 Oct, 2014 at 3:09 PM
Co-axial
A speaker type that utilizes a tweeter mounted at the center of a woofer cone. The idea being to have the sound source through the full frequency range beco...
Mon, 13 Oct, 2014 at 3:10 PM
Codec
Mathematical algorithms used to compress large data signals into small spaces with minimal perceived loss of information. 
Mon, 13 Oct, 2014 at 3:11 PM
Coherence
Listening term. Refers to how well integrated the sound of the system is.
Mon, 13 Oct, 2014 at 3:12 PM
Coloration
Any shift away from the natural rendition of music. Coloration is undesirable - boomy bass, a nasal midband or a splashy treble, for instance. All coloratio...
Mon, 13 Oct, 2014 at 3:13 PM
Coloured
 Having timbres that are not true to life. Non flat response; peaks or dips.
Mon, 13 Oct, 2014 at 3:13 PM
Compliance
The relative stiffness of a speaker suspension, specified as Vas.
Mon, 13 Oct, 2014 at 3:14 PM
Component Video
A signal that's recorded or transmitted in its separate components. Typically refers to Y/Pb/Pr, which consists of three 75-ohm channels: one for lumina...
Mon, 13 Oct, 2014 at 3:15 PM
Compression
In audio, compression means to reduce the dynamic range of a signal. Compression may be intentional or one of the effects of a system that is driven to over...
Mon, 13 Oct, 2014 at 3:16 PM