| A | B |
| analog audio | Sound recorded as continuous vibrations. |
| channels | The number of sides from which sound is heard, either mono (one) or stereo (two). |
| codec | An algorithm that compresses sound or video to reduce its file size and then decompresses it when played. |
| DAC | The acronym used to describe the process of converting sound from digital to analog. |
| decibel | Unit of measurement for sound pressure level and signal level. |
| digital audio | Sound recorded as a series of digits. |
| Hertz | A measurement of the frequency of sound, or the number of times the wave pattern is repeated per second. |
| MIDI | Communication protocol that allows a wide variety of electronic musical instruments, computers, and other devices to communicate with each other. |
| ripping | The process of transferring music from a CD to a computer. |
| sample rate | The number of times a sound is measured. |
| sample size | The number of bits used to represent the sound in a sample. |
| sequencer | Hardware device or software application that handles necessary data to record, edit, or play back music. |
| sound card | Computer component that allows computers to play or record sound.) subwoofer (A speaker that reproduces very low bass sounds. |
| wave editor | Software that allows one to modify or edit audio files. |
| waveform | A graphical display that represents the changes in recorded sound waves. |