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Glossary

  • H

    • Harmonics

      In addition to the fundamental frequency of a vibration there are also superimposed additional frequencies at 2x, 3x, 4x etc in theory all the way to infinity! The 2nd harmonic is one octave higher at twice the frequency. Middle ‘C’ on a piano is at 261.626 Hz.

    • Hertz

      One ‘cycle per second’ is often termed one ‘Hertz’ after the German physicist. Standard scientific prefixes are used so 1000 cycles per second is 1000 Hertz (1000 Hz) or 1 kiloHertz (1kHz).

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