Keywords: Beat frequency (1000, 1400, 1800, 2200) zh hant.svg en A diagram showing four sinusoids of frequencies 1200 1400 1600 and 1800 hertz green purple orange and red Also shown is the summed signal black and the sinusoid with the same period as the beat frequency f<sub>0</sub> 200 Hz Above is the spectrum of the signals Beat_frequency_ 1000 _1400 _1800 _2200 svg 2010-08-31 14 12 UTC Beat_frequency_ 1000 _1400 _1800 _2200 svg Inductiveload derivative work KeepOpera <span class signature-talk >talk</span> Localization KeepOpera Beat_frequency_ 1000 _1400 _1800 _2200 svg Translation possible Audiology Beat frequencies |