Beat Frequency Calculator (Wave Superposition)
Beat frequency and envelope of two superposed waves of slightly different frequencies.
How to use the Beat Frequency Calculator
- Enter or select: Frequency f₁, Frequency f₂, Amplitude A₁, Amplitude A₂.
- The results (Beat frequency |f₁ − f₂|, Beat period, Perceived (mean) frequency, Maximum amplitude, Minimum amplitude) are calculated instantly as you type.
- Use “Copy link” to share the calculation with the same input values.
Formula
- f_beat = |f₁ − f₂|
- A_max = A₁ + A₂, A_min = |A₁ − A₂|