MusicianCV · TRBeating
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Properties of sound
Two nearby sine tones produce periodic changes in amplitude. The number of beats per second equals the difference in frequency.
Example
440 Hz + 442 Hz → 2 Hz
Beating440 Hz + 442 Hz → 2 Hz
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Which relationship should you listen for when reading the diagram?
Answer
Two nearby sine tones produce periodic changes in amplitude. The number of beats per second equals the difference in frequency.Related topics
Envelope: from attack to releaseReferences
Music Theory for the 21st-Century Classroom
Subject-expert review pending.