A series of alternate reinforcements and cancellations produced by the interference of two sets of superimposed waves of different frequencies, heard as a throbbing effect in sound waves
A throbbing variation in the loudness of sound caused by interference when two tones of slightly different frequencies are sounded together
acoustical phenomena caused when two or more frequencies are an irrational interval apart, leading to asymetrical difference tones
a United States youth subculture of the 1950s; rejected possessions or regular work or traditional dress; for communal living and psychedelic drugs and anarchism; favored modern forms of jazz (e g , bebop)
One unit of text denoting the beginning and end of an action Or simply, a moment, as in "wait two beats and continue "
Periodic variations in amplitude that result from the superposition or addition or two tones with nearly the same frequency
A wobbling effect in a sound which contains two frequencies close together Heard in bells with doublets
The result of combining two sounds less than 30 Hz or so apart in frequency together, beating is the alternate reinforcement and cancellation of amplitude in the combination sound (over around 30 Hz in difference results in an rougher "out of tune" sound, rather than distinct beats) Most easily heard when the original sounds are of equal volume, the frequency of the beats will be the difference in frequency between the two signals Beats are common in most musical instruments, and are often used for tuning; when the instruments are in tune, beating disappears When complex sounds are combined, beating occurs between various partials in the signals - listen to a piano for a good example of this Beating is not restricted to musical instruments, it can occur between any two signals or sounds
Periodic fluctuations that are heard when sounds of slightly different frequencies are superimposed