| Term | Definition / Meaning / Stand for |
| A-T |
Audio-Technica |
| ABSC |
Air Base Security Council |
| ADAM |
Advanced Dynamic Audio Monitors |
| ADAT |
Alesis Digital Audio Tape |
| AES |
Audio Engineering Society |
| AFAE |
Australian Forum for Acoustic Ecology |
| AGC |
Automatic Gain Control |
| ALAC |
Apple Lossless Audio Codec |
| AMBEO |
Ambisonic Binaural Recording |
| ANC |
Adaptive Noise Control |
| AOP |
Acoustic Overload Point |
| APE |
Audio Processing Engine |
| ASAE |
American Society for Acoustic Ecology |
| ASTC |
Apparent Sound Transmission Class |
| ATD |
Acoustic Time Delay |
| ATRAC |
Adaptive Transform Acoustic Coding |
| ATSC |
Advanced Television Systems Committee |
| AVR |
Audio Video Receiver |
| AWB |
Adaptive Multi-Rate Wideband |
| BBM |
Bass Boost Mode |
| BCD |
Bass Compression Dynamics |
| BDSP |
Bass Digital Signal Processing |
| BDT |
Bitrate Dynamic Transfer |
| BFX |
Bass Effects |
| BIR |
Binaural Impulse Response |
| BPS |
Bits Per Second |
| BRAA |
Batting Runs Above Average |
| BRIR |
Binaural Room Impulse Response |
| BRRP |
Bintec Router Redundancy Protocol |
| BTL |
Bridge-Tied Load (audio amplifier configuration) |
| BTS |
Bluetooth Stereo |
| BTV |
Bluetooth Audio Transmission |
| BW |
Bandwidth |
| CBR |
Constant Bit Rate |
| CDP |
Compact Disc Player |
| CFM |
Crossover Filter Mode |
| CLIS |
Central Long Island Sound |
| CN |
Carrier-to-Noise Ratio |
| CNMAT |
Center for New Music and Audio Technology |
| CPWG |
Compound Pulse Wave Generator |
| CS |
Channel Separation |
| CSD |
Cumulative Spectral Decay |
| CV |
Control Voltage (used in synthesizers) |
| CW |
Continuous Wave |
| DCL |
Dynamic Compression Level |
| DCT |
Discrete Cosine Transform |
| DGJ |
Da Gudda Jazz |
| DIO |
Digital Input Output |
| DIP |
Digital Interpolation Processing |
| DLF |
Dynamic Loudness Filtering |
| DNC |
Dynamic Noise Cancellation |
| DNR |
Dynamic Noise Reduction |
| DOA |
Direction of Arrival (used in sound localization) |
| DPL |
Dolby Pro Logic |
| DPM |
Dynamic Pitch Modulation |
| DS |
Digital Sound |
| DTS |
Digital Theater Systems |
| DTX |
Dynamic Time Expansion |
| DV |
Dynamic Volume |
| EA |
Equalization Adjustment |
| EAF |
Extended Audio Frequency |
| EC |
Echo Cancellation |
| ECS |
Environmental Crossover System |
| ED |
Echo Delay |
| EDP |
Echo Depth Processing |
| EG |
Equalizer Gain |
| EM |
Electroacoustic Model |
| EML |
Echo Modulation Level |
| EPC |
Equalization Phase Correction |
| ESC |
Environmental Sound Calibration |