| AAC | Advanced Audio Coding |
| A/D | Analog to Digital |
| ADC | Analog to Digital Converter |
| AIFF | Audio Interchange File Format |
| ASIO | Audio Stream Input/Output |
| ATRAC | Adaptive Transform Acoustic Coding |
| CBR | Constant Bit Rate |
| D/A | Digital to Analog |
| DAC | Digital to Analog Converter |
| DAP | Digital Audio Player |
| DAT | Digital Audio Tape |
| DD | Dynamic Driver |
| DSD | Direct Stream Digital |
| DTS | Direct Theater Systems |
| HD | High-Definition |
| HDMI | High-Definition Multimedia Interface |
| IMD | Intermodulation Distortion |
| IPX | Ingress Protection Code |
| NRR | Noise Reduction Rating |
| PCM | Pulse-Code Modulation |
| RMS | Root Mean Square |
| SACD | Super Audio CD |
| SNR | Signal-to-Noise Ratio |