| +4 dBu |
| 0 dB SPL (sound pressure level) |
| 1/3-octave |
| 3-dB down point |
| 3D Sound |
| 5.1 Surround Sound |
| 7.1 Surround Sound |
| 7.1.4 Dolby Atmos Surround Sound |
| 94 dB-SPL |
| A/B Test |
| A/D |
| Absorption |
| ABX Testing |
| Accuracy |
| Acoustic Impedance |
| Acoustic Power Output |
| Acoustic Suspension |
| Acoustic Treatments |
| Acoustics |
| Active |
| Active Crossover |
| Active Speaker |
| AES/EBU |
| All-pass filter |
| Alternating Current |
| Ambience |
| Ambient Noise Level |
| Amperes |
| Amplifier |
| Amplitude |
| Analog |
| Anechoic |
| AoE (Audio over Ethernet) |
| Architectural Speakers |
| Asymmetrical |
| Attenuate |
| Audio |
| Audio Frequency |
| Audiophile |
| Audyssey |
| Auro-3D® |
| AVB (Audio/Video Bridging) |
| Axisymmetric |
| Back-EMF (back-electromotive force) |
| Baffle |
| Balanced |
| Banana Plug |
| Band |
| Band-Limiting Filters |
| Band-Pass Filter |
| Bandwidth |
| Basket |
| Bass |
| Bass Array |
| Bass Management |
| Bass Reflex |
| Bass Trap |
| Beam Steering |
| BEM (Boundary Element Modeling) |
| Bessel Crossover |
| Bi-Amping |
| Bi-Pole (Bipolar) |
| Bi-Wiring |
| Biamplification (Same as Bi-Amping) |
| Binding Post |
| Blind Test |
| Bloat |
| Bookshelf Speaker |
| Boundary |
| Boundary Gain |
| Brickwall Filter |
| Bridging |
| Brightness or Bright Sound |
| BTL (Bridge-Tied-Load) |
| BTU (British Thermal Unit) |
| Bus |
| Butterworth Crossover |
| Butterworth Filter |
| Cabinet |
| Cabinet Resonance |
| Cable Management |
| Calibration |
| Cancellation |
| Capacitor (CAP) |
| Cardioid |
| Center Channel |
| Center Frequency |
| Channel |
| Chebyshev Filter |
| Chirp |
| Clipping |
| Coaxial |
| Codec |
| Coherence |
| Coloration |
| Comb Filter |
| Compliance |
| Compression |
| Compression Driver |
| Conductor |
| Cone |
| Congestion |
| Constant Directivity (CD) Horn |
| Constant-Q Equalizer |
| Convolution |
| Corner Frequency |
| Correlation |
| Coupling / Mutual Coupling |
| CPS (Cycles Per Second) |
| Crest Factor |
| Crisp |
| Critical Distance |
| Crossover for Speakers |
| Crossover Frequency |
| Crossover Slope |
| Crosstalk |
| Cumulative Spectral Decay |
| Cutoff Frequency |
| DAC (Digital-to-Analog Converter) |
| Daisy Chain |
| Damping |
| Damping Factor |
| Dante |
| Dark / Darkness |
| dB (decibel) |
| dB/octave |
| DC (Direct Current) |
| DCAC (Digital Cinema Auto Calibration) |
| Dead Room |
| Decay |
| Delay |
| Depth |
| Detail |
| Diaphragm |
| Diffraction |
| Diffuse (Diffuser) / Diffusion |
| Diffuse Sound |
| Diffuser / Diffusor |
| Digital Audio |
| Digital Filter |
| Dipolar / Dipole Speaker |
| Dipole Bass / Dipole Subwoofer |
| Dirac (Dirac Live) |
| Direct Sound |
| Directivity |
| Discrete |
| Dispersion |
| Distortion |
| DIY (Do-It-Yourself) |
| Dolby Atmos |
| Dolby Atmos Speaker |
| Dolby Digital |
| Dolby Pro Logic |
| Double Bass Array |
| Downmix |
| Driver |
| DSP (Digital Signal Processing) |
| DTS (Digital Theater Systems) |
| DTS:X |
| DTS:X Pro |
| Dual Subwoofer |
| Dynamic Driver |
| Dynamic EQ |
| Dynamic Loudspeaker |
| Dynamic Range |
| Dynamics Processing |
| D’Appolito |
| Early Reflections |
| EASE (Enhanced Acoustic Simulator for Engineers) |
| Eddy Current |
| Efficiency |
| Eigentone or Modes |
| Electrostatic Loudspeaker |
| Energy Time Curve (ETC) |
| Equalizer (EQ) |
| Euphonic |
| Exponential Horn |
| Fader |
| Fall Time |
| Far Field |
| Fast Subwoofer |
| FEA (Finite Element Analysis) |
| Ferrofluid |
| FFT (Fast Fourier Transform) |
| Filter |
| FIR (Finite Impulse Response) Filter |
| Flanging |
| Flat |
| Flutter Echo |
| Forward |
| Fourier Analysis |
| Frequency |
| Frequency Range |
| Frequency Response |
| Front Speakers |
| Fs / Fb |
| Full Range |
| Fundamental |
| Gain |
| Gauge |
| Graph |
| Graphic Equalizer |
| Grille (or Grill) |
| Ground |
| Ground Loop |
| Group Delay |
| Groups (Subgroup / Submix) |
| Haas Effect (Precedence Effect) |
| Handshaking |
| Hard Clipping |
| Harmonic |
| Harmonic Distortion |
| Harsh |
| Headroom |
| Height Effect Speakers |
| Helmholtz Resonator |
| HiFi (High Fidelity) |
| High Pass Filter |
| High-End Audio |
| Hiss |
| Home Theater |
| Horn |
| House Curve |
| HTIB (Home Theater in a Box) |
| Hz (Hertz) |
| IIR (Infinite Impulse-Response) Filter |
| Imaging |
| Immersive Sound |
| Impedance |
| Impedance Matching |
| Impulse Response |
| In-Ceiling Speakers |
| In-Phase |
| In-Wall Speakers |
| Incident Sound |
| Inductance |
| Infinite Baffle |
| Infrasonic |
| Input Overload Distortion |
| Interconnects |
| Interface |
| Interference |
| Intermodulation Distortion |
| Isolation |
| Isolator (also: Decoupler) |
| kHz (Kilohertz) |
| Latency |
| Layering |
| LCR (Left, Center, Right) |
| Levels |
| LFE (Low Frequency Effects) |
| Limiter |
| Line Level |
| Linear Distortion |
| Linear Phase Response |
| Linkwitz-Riley Crossover |
| Lip Sync |
| Listening Fatigue |
| Listening Style |
| Load |
| Lobing Error |
| Logarithm |
| Loop |
| Loudness |
| Loudspeaker |
| Loudspeaker Directivity |
| Low-Bass |
| Low-Level Detail |
| Low-Pass |
| Lush |
| Magnetically Shielded |
| Mask / Masking (Auditory Masking) |
| Matrix |
| Maximum Power Rating |
| MCACC (Multi-Channel Acoustic Calibration System) |
| Microphonics |
| Mid-Bass |
| Midrange |
| Millisecond (ms) |
| Minimum-Phase |
| Minimum-Phase Loudspeaker |
| MLP (Main Listening Position) |
| Modal |
| Modelling |
| Modes (Room Modes) |
| Monitor |
| Mono (Monophonic) |
| Motor |
| Muddy |
| Multiple Subwoofers |
| Multiroom Audio (also Multizone or Distributed Audio) |
| NC (Noise Criterion) Curves |
| Node |
| Noise |
| Noise Cancellation |
| Noise Floor |
| Nominal |
| Non-Resonant |
| Notch Filter |
| Octave |
| Off-Axis |
| Ohm (Ω) |
| Ohm’s Law |
| Omnidirectional |
| Openness |
| Out of Phase |
| Output |
| Overload |
| PA (Public Address System) |
| Paragraphic EQ |
| Parallel |
| Parameter |
| Parametric EQ |
| Passband |
| Passive |
| Passive Loudspeaker or Monitor |
| Passive Radiator |
| PCM (Pulse Code Modulation) |
| Peak |
| Peak Power |
| Peak Program Meter (PPM) |
| PFC (Power-Factor-Corrected) |
| Phase |
| Phase Cancellation |
| Phase Shift / Phase Delay |
| Pin (Pin 2 Hot) |
| Pink Noise |
| Pitch |
| Placement Equalization (Placement EQ) |
| PMPO (Peak Music Power Output or Peak Momentary Performance Output) |
| Point Source |
| Polar Pattern |
| Polar Plot |
| Polar Response |
| Polarity |
| Port |
| Ported Enclosure |
| Potentiometer (Pot) |
| Power |
| Power Amplifier |
| Power Compression |
| Power Factor (PF) |
| Power Output |
| Power Supply |
| Power-Factor Correction (PFC) |
| Powered Loudspeaker or Monitor |
| Powered Subwoofer |
| Pre-outs (Preamp Outputs) |
| Pre-processor (Pre-Pro) |
| Preamplifier (or Preamp) |
| Preset |
| Processor |
| Propagation |
| Psychoacoustics |
| Q |
| Quadratic Residue Diffuser |
| Rack Space |
| Rack Unit |
| Raised Cosine Filter |
| RCA Connector |
| Real-Time Analyzer (RTA) |
| Rear Channel |
| Receiver |
| Reflection |
| Resonance |
| Resonance Frequency |
| Reverb |
| Reverberation |
| Reverberation Time |
| RF (Radio Frequency) |
| Ribbon |
| RMS (Root Mean Square) |
| Roll-Off |
| Roll-Off Rate |
| Room |
| Room Gain |
| Room Mode |
| Satellite Speaker |
| SBIR (Speaker-Boundary Interference Response) or LBIR (Listener-Boundary Interference Response) |
| Schroeder Diffuser |
| Screen Channel Speakers |
| Sealed Enclosure/Cabinet |
| Sense of Presentation |
| Sensitivity |
| Shelving |
| Shelving Filter |
| Shield |
| Sibilant |
| Signal |
| Signal Chain |
| Signal Flow |
| Sine Wave |
| Single Bass Array |
| Skin Effect |
| Slap Echo |
| Slew Rate |
| Smooth |
| SNR (Signal to Noise Ratio) |
| Sound |
| Sound Absorption |
| Sound Field |
| Sound Masking |
| Sound Reinforcement |
| Sound Signature |
| Soundproofing |
| Soundstage |
| Source |
| Spade Lug |
| Speaker (Loudspeaker) |
| Speaker Level |
| Speakon Connector |
| Spectrum Analyzer |
| Spider (a.k.a. Suspension) |
| Spinorama |
| SPL (Sound Pressure Level) |
| SPL Meter |
| Standing Wave (or Mode) |
| Stereo |
| Stopband |
| Streaming Service |
| Sub Out |
| Sub-Bass |
| Subharmonic |
| Subwoofer (Sub) |
| Subwoofer Cluster |
| Surround |
| Surround Sound |
| Surround Speaker |
| Sweet Spot |
| Switching Power Supply (SMPS) |
| Synergy |
| Test Tone |
| Texture |
| THD (Total Harmonic Distortion) |
| THX |
| Two-Way |
| Unbalanced |
| Voice Coil |
| Voice-Matched |
| Volt |
| VU Meter |
| Warmth |
| Waterfall Graph/Plot |
| Watt |
| Wave Field Synthesis (WFS) |
| Wave/Wavelength |
| Waveguide |
| Weight |
| White Noise |
| Woofer |
| X Curve |
| Xmax |
| Y-adapter |
| YPAO (Yamaha Parametric Room Acoustic Optimizer) |
| Zone |
| –10 dBV |