The beat frequency is always equal to the difference in frequency of the two notes that interfere to produce the beats . So if two sound waves with frequencies of 256 Hz and 254 Hz are played simultaneously, a beat frequency of 2 Hz will be detected.
Read moreWhat is the best carrier frequency for binaural beats?
Binaural beats are best perceived when the carrier and standard tone frequencies are at approximately 400 Hz with differences between the two frequencies of no more than 35 Hz [3].
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