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EURASIP Journal on Audio, Speech, and Music Processing
Fig. 5 | EURASIP Journal on Audio, Speech, and Music Processing

Fig. 5

From: Fast fundamental frequency determination via adaptive autocorrelation

Fig. 5

a Top plot: comparison of detection lags of YIN, the autocorrelation algorithm and the AAC algorithm on the basis of a signal with a sinusoidal changing fundamental frequency. The outline of the gray area shows the actual artificially generated fundamental frequency progression. Bottom plot: deviation between the estimated frequency and the actual frequency. b Histograms of the time lag distribution for the different algorithms. The median time lags are shown as red lines and are found to be 16.6, 22.1, 21.5, and 22.6 ms for the algorithms AAC, AC, SHRP, and YIN, respectively

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