beat frequency

Question

Two sources 256 Hz and 250 Hz. Beats per second?

RankGuru · Accepted Answer

1. **Definition of Beats**: The periodic variations in the intensity of sound heard when two sound sources of slightly different frequencies interfere.
2. **Beat Frequency Formula**: $f_{beat} = |f_1 - f_2|$.
3. **Calculation**:
   - $f_1 = 256$ Hz
   - $f_2 = 250$ Hz
   - $f_{beat} = 256 - 250 = 6$ Hz.
4. **Conclusion**: The listener will hear $6$ beats per second (waxing and waning of sound).

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beat frequency

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Beat frequency between two sources f1, f2 is: