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Glossary of the letter "h"
All words also link to dictionary.com definitions for further information.
hard knee - A sharply defined cutoff on a filter.
hardware - Any part of a product that isn't data (Software): electronic components, chassis, and so on.
harmonic - Also referred to as over-tone. Directly effect the tonal quality of a sound. Sound construction starts with the primary pitch or frequency. Harmonics that develop "around" the pitch blend with pitch creating tone or charector.
headphones - devices that can be worn on the head with small speakers that fit over the ears (or sometimes into the ears)
headroom - The difference between the highest level present in a signal and the maximum level the audio component can handle without creating distortion.
hi-z - high-impedance