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HAAS EFECT CURVE
Also called the PRECEDENCE EFFECT.
HAMMING DISTANCE
Number of bits that separate two words.
HARD DISK
A magnetic storage device. It utilizes a magnetic head to read and write data onto vacuum-sealed disks.
HARMONIC DISTORTION
The presence of harmonics in the output signal of a device, which were not present in the input signal.
HARMONICS
The name for all the simple sine waves that make up a complex tone. The first harmonic is called the Fundamental and has the same frequency as the tone in question; the second harmonic has a frequency twice the fundamentals and so forth. Also called Partials.
HARMONIC SERIES
See harmonics
HARMONY
A way of analysing and writing music according to vertical or chordal considerations, as opposed to linear (contrapuntal) considerations.
HDTV
High definition television
HEADPHONES
Refers to miniature audio speaker system, usually stereo, which is designed for close listening. The speakers sit over the ears of the listener.
HEADROOM
The area between normal operating level and distortion.
HEARING
The process of transducing acoustic pressure variations into nerve signals that can be interpreted by the brain.
HEARING LOSS
The loss of sensitivity of the auditory system, measured in dB below a standard level. Can be related to age or to exposure to high-level sounds.
HERTZ
The unit of measure of frequency. Hz.
HELICOTREMA
A small opening at the apex of the basilar membrane.
HELMHOLTZ
HELMHOLTZ RESONATOR
A bottle is a good example of such a resonator.
HENRY
Unit of measure of INDUCTANCE
HEXADECIMAL
A numerical system using sixteen symbols [0123456789ABCDEF].
HF SATURATION POINT
HI-COM NOISE REDUCTION SYSTEM
Cheaper alternative to the ANT telcom C4 noise reduction system. It is intended for the home studio and domestic market.
HIGH PASS FILTER (HPF)
An electrical filter allowing only frequencies above a determined cut-off frequency through untenanted.
HISS
A type of noise. It is caused by random electrical fluctuations.
HORN LOUDSPEAKERS
An acoustic transformer. The shape of the loudspeaker helps us match the air impedance in its different areas thus improving acoustic efficiency.
HRTF
Head Related Transfer Function
HTML
Hypertext Markup Language
HYPER-LINK
Describes the fundamental programming tool of HTML; it is the ability to move from a programmed point in one document or media, to a programmed point in another, through the choice of the reader. |
