Final answer:
Beats is the affect produced when two tones that differ only slightly in frequency and have approximately the same amplitude are played together.
Step-by-step explanation:
The affect known as beats is produced when two tones that differ only slightly in frequency and have approximately the same amplitude are played together. Beats occur due to the phenomenon of interference between the two sound waves. When the two frequencies are close to each other, the resulting sound will sound like a modulation in loudness or amplitude.
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