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CLASS "A"
In audio components, Class "A" represents an operating state for power
supplies and circuitry which is widely acknowledged as having superior sonic
characteristics to other forms of operation.
CLOCK SPEED
The speed at which a processor operates, usually expressed in MttZ.
COAXIAL
A type of cable design where a center conductor is surrounded by an insulator
which is then wrapped with a metallic shield.
COEFFICIENTS
Numbers used in high order mathematical computations. In general terms, the
length of a coefficient is directly related to the accuracy of the computation.
D/A
Digital to Analog conversion.
DAC
Digital to Analog Converter. The circuit which converts the digital information
(in this case, from the DSP-56000) into an analog signal for playback in your audio
system.
DAT
Digital Audio Tape.
DDD
The symbol (SPARS code), which appears on most CD’s, representing Pure
Digital Recording. Digital Recording, Digital Mixing, and Digital Mastering.
DISCRETE
In this text, Discrete circuit design utilizes individual components (i.e. FETs,
Transistors...) not Integrated Circuits. It is generally accepted that correctly executed
discrete circuits are superior in performance than the less expensive IC’s.
DITHERING
Dithering is a process by which random noise is mixed in with low amplitude
signals created as a by product of quantization errors. This dither masks the unwanted
signals partially through random cancellation and partially by raising the noise floor
to envelop these signals. Dithering is commonly performed in digital recording to
counter the quantization errors which commonly occur during Analog to Digital
processing.
DROP OUT
In this usage, drop out is a term referring to periods of silence during digital
audio playback.
DYNAMIC HEADROOM
The ability of a component to correctly duplicate high speed, high level
transient signals in excess of those normally encountered in audio playback. If a
component does not have sufficient Dynamic Headroom, it will either fall short
of the actual intensity and accuracy of the transient, or it may distort it.
FIBER OPTICS
An interconnecting li~ through which digital data is transmitted via a beam
of light .........
HIGH LEVEL INPUT
An input which does not require extraordinary amplification in the preamp as
do the Phono MC/MM inputs. High level inputs include Tape, Tuner, Auxiliary, CD,
DAT...
INPUT FILTERING
A filter used in the input to correct an unwanted signal characteristic from an
anticipated source.
INSTRUCTION CYCLE
A period of time in which a processor completes a single or series of operati6rls.