Beat Frequency Calculator

Calculate the beat frequency produced when two sound waves of slightly different frequencies interfere: f_beat = |f1 - f2|.

Hz
Hz

Beat Frequency

3.00 Hz

Beat Period0.3333 s

Beat Frequency vs Frequency 1

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Formule

## Beat Frequency When two waves of slightly different frequencies overlap, they produce a pulsating amplitude variation called beats. ### Formula **f_beat = |f1 - f2|** The beat period is **T_beat = 1 / f_beat**. Beats are commonly used by musicians to tune instruments.

Exemple Résolu

Two tuning forks at 440 Hz and 443 Hz played together.

  1. 01f_beat = |f1 - f2|
  2. 02f_beat = |440 - 443|
  3. 03f_beat = 3 Hz
  4. 04T_beat = 1 / 3 = 0.333 s