Audio History Library
CONTENTS:
I.  Biographies
II.  Audio Categories
III.  Other Categories
IV.  Firsts
V.  Company Listing
  By Country
By Manufacturer
VI.  Wall of Honor
Friends of the Library
VII.  A Message To Manufacturers
VIII.  Ways YOU can help
IX.  Contact us!





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Untitled Document
AHL Audio Category Listings

Welcome to the AHL Category Listings . The category listings, all alphabetical, are in two parts: audio equipment according to function and sub-group (164 or so), and those things of interest relating to the sound industry.

In creating an index of the categories of audio equipment, we wanted to address several challenges: 1) we could not have too many classifications, nor too few, (2) they had to include past technologies and divine future techniques, and (3) be inter-culturally friendly.

In addition, we want to accommodate all the things that support or pertain to our industry. Also of interest to many folks are "collectibles".

The category listings follow:


ACOUSTIC APPARATUS
1) Cylinder Phonographs
2) Disc Gramophones
See:   Archiving
Electric Phonographs
Turntables
ACOUSTIC RECORDING & REPRODUCTION
1) Equipment
2) Playback Curves & EQ
See:   Archiving
ACOUSTIC MATERIALS
1) Absorption
2) Diflusion
3) Reflection
4) Resonators & Traps
5) Other
AMPLIFIERS
1) Distribution
2) Solid State
3) Tube
ANTENNAS
1) AM/FM/TV/DB
2) Other
See:   Transmitters
Tuners
ARCHIVING
1) Cylinders
2) Metal Parts
3) Records
4) Tapes
BROADCAST
See:   Acoustical Materials
Antennas
Computers
Consoles
Electric Phonographs
Signal Processors
Tape Decks
Tel. Co. Interface
Time
Transmitters
Turntables
CABLES
1) Coaxial
2) Fiber Optic
3) Stranded
See:   Connectors
Converters
Patchbays & Cords
CARTRIDGES
See:   Tape
Tape Decks
Turntables
CASSETTES
See:   Tape
Tape Decks
CINEMA
See:   Acoustical Materials
Amplifiers
Loudspeakers
Movie Sound
Surround Sound
COMPACT DISC
See:   Disc Mastering
Laser Disc
COMPACTS
See:   Turntables
COMPANDERS
See:   Signal Processors
COMPRESSORS
See:   Signal Processors
COMPUTERS
1) Broadcast Automation
2) Console Automation
3) Cutting Lathe Automation
4) MIDI
5) Programs
See:   Instruments
Laser Discs
Tape Decks
CONNECTORS
CONSOLES
1) Broadcast
2) Early Recording
3) Modular Multi Channel
CONVERTERS
1) Analog to Digital
2) Digital to Analog
3) Fiber Optic
4) Format & Rate
CROSSOVERS
1) Fixed
2) Tunable
CYLINDER PLAYERS
See: Acoustic Apparatus
D.A.T.
See:   Tape
Tape Decks
DELAYS
DISC MASTERING
1) Analog
1. 1) Blanks
1.2) Lathes
1.3) Plating
1.4) Pressing (front) (back)
1. 5) Vinyl
2) Digital
2. 1) Preparation
2.2) Replication
ECHO AND REVERBERATION
See: Signal Processing
ELECTRIC PHONOGRAPHS
1) Vertical Play
2) Lateral Play
3) Long Play
4) High Fidelity
5) Transcription
See:   Acoustic Apparatus
Turntables
EQUALIZERS
1) Graphic
2) Parametric
EXPANDERS
See:   Signal Processing
FILM CHAIN
See:   Movie Sound
FILTERS
FORENSIC SIGNAL PROCESSING
GATES
See:   Signal Processing
HARDWARE
1) Cabinets & Accessories
2) Speaker Suspension & Accessories
3) Stands
4) Other
HEADPHONES
HEADSETS
See:   Intercoms
HEARING AIDS
HEARING ASSISTANCE
INFRARED
See:   Hearing Assistance
Remote Controls
INSTRUMENTATION
See: Test Equipment
INSTRUMENTS
1) Acoustic
2) Electronic
JUKEBOXES
LASER DISCS
1) C.D. Players
2) L.D. Players
3) ROM Drives
4) WORM Drives
See:   Disc Mastering
Solid State Memories
Tape Decks
LIMITERS
See:   Signal Processors
LOUDSPEAKERS
1) Cabinets & Horns
2) Columns
3) Drivers (Exploded Construction View)
3. 1) High
3.2) Mid
3.3) Bass
3.4) Coaxial
4) Electromechanical
    1300 cu.in., .213 cu.m, or less
5) Electromechanical - standard
6) Electrostatic
7) Massless
8) Piezo
9) Planar
10) Ribbon
11) Underwater
MEASUREMENTS
1) Standards
2) Techniques
See:   Meters
Test Equipment
METERS
MICROPHONES
1) Condenser
2) Moving Coil
3) Ribbon
4) Wireless & Electret
5) Other
6) Accessories
MIXERS
See:   Consoles
MOVIE SOUND
1) Magnetic Track
2) Optical Track
2. 1) Analog
2.2) Digital
3) Synchronized Sources
See:   Amplifiers
Loudspeakers
Surround Sound Processors
NOISE REDUCTION
1) Consumer
2) Professional
PATCHBAYS & CORDS
PHONOGRAPHS
See:   Acoustic Apparatus
Electric Phonographs
Turntables
POWER
1) Conditioners
2) Generators
PRE-AMPLIFIERS
1) Passive
2) Phono
3) Solid State
4) Tube
RECEIVERS
RECORD CLEANING MACHINES
RECORD PLAYERS
See:   Electric Phonographs
Turntables
REMOTE SYSTEMS
1) Hard Wired
2) I.R. & R.F.
SIGNAL PROCESSORS
1) Compander
2) Compressor, Limiter
3) Dipper, Ducker
4) Echo & Reverberation
5) Exciter
6) Expander
7) Gate
8) Sibilance Controller
9) Other
See:   Crossovers
Delays
Filters
Forensic Sig. Proc.
Noise Reduction
Surround Systems
Time
SOLID STATE MEMORIES
STEREO
See:   Consoles
Disc Mastering
Microphones
Movie Sound
Surround Sound Processor
Tape Decks
Transmitters
Tuners
Turntables
SURROUND SOUND PROCESSORS
1) Ambience, Stereo & Special Enhancement
2) Discrete Four Channel
3) Matrix
4) Theater Surround
4.1) Commercial
4.2) Residential
TAPE
1) Cartridge
2) Cassette
3) D.A.T.
4) Open Reel
4.1) Analog
4.2) Digital
4.3) Reels-Flanges, Hubs
5) Other
6) Accessories
See:   Noise Reduction
Solid State Memories
TAPE DECKS
1) Analog
1.1) Cassette
1.2) Open Reel
2) Digital
2.1) D.A.T.
2.2) Open Reel
3) Cartridge
4) Disc Based Systems
5) Instrumentation & Logging
6) Video for Audio
6.1) V.C.R.
6.2) V.T.R.
7) Wire Records
8) Accessories
See:   Laser Discs
Noise Reduction
Solid State Memories
Time
TAPE DUPLICATION
TEL. CO. INTERFACE
TEST EQUIPMENT
1) Continuity Checkers
2) Distortion Analyzers
3) Oscilloscopes
4) Real Time Audio Spectrum Analyzers
5) Other
TIME
1) Compressors & Expanders
2) Clocks & Timers
3) Time Code Generators and Readers
TRANSMITTERS
1) AM& FM
2) Television
3) Other
TUNERS
1) Radio
a) AM
b) FM
c) Novelty
d) Short Wave
2) Other
See:   Antennas
Receivers
TURNTABLES
1) Compacts, Self-Contained
2) Turntables (Modern)
2.1) Optically Reading
2.2) Straight Line Tracking
2.3) Tangential
3) Phono Cartridges
3.1) Ceramic
3.2) Moving Coil
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