Automatic Bird Song Recognition |
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Page 14
... frequency of the wave can be calculated from the above formula . Whereas it is difficult to analyze precisely the ... low frequency " fifths " have duration longer than one fifth of the duration of the chirp , and that the high frequency ...
... frequency of the wave can be calculated from the above formula . Whereas it is difficult to analyze precisely the ... low frequency " fifths " have duration longer than one fifth of the duration of the chirp , and that the high frequency ...
Page 28
Edward R. Oswalt. Olive - sided flycatcher Low High Low High Low High Frequency Frequency Duration Duration Start Start 2300 3000 .04 .08 X X 600 1000 .18 .3 X X -800 -80 .3 .41 X X Wrentit Low High Low High Low High Frequency Frequency ...
Edward R. Oswalt. Olive - sided flycatcher Low High Low High Low High Frequency Frequency Duration Duration Start Start 2300 3000 .04 .08 X X 600 1000 .18 .3 X X -800 -80 .3 .41 X X Wrentit Low High Low High Low High Frequency Frequency ...
Page 45
... low frequency as to be easily distinguished from the bird songs , human voices are much lower than almost all the ... high frequencies [ RS ] ) , Fourier transform it , or fit Linear Prediction Coefficients ( LPC's ) to it . The LPC fit ...
... low frequency as to be easily distinguished from the bird songs , human voices are much lower than almost all the ... high frequencies [ RS ] ) , Fourier transform it , or fit Linear Prediction Coefficients ( LPC's ) to it . The LPC fit ...
Common terms and phrases
ACOUSTIC SUBSOURCE algorithm analysis average amplitude avian bird song recognition bird species California Quail calls CDFE centisecond cepstral cepstral peak Cepstrum chirp feature vectors chirp list Clark's Nutcracker comparison Computer congruent corresponding described in Section detected difference duration dynamic time warping entire song excursion cycle Figure 11b formula Greenewalt harmonics Hence High Low High House Finch human speech recognition individual integer inter-note distances internal tympaniform membranes Inverse Fourier Transform Itakura distance length Linear Prediction low frequency LPC distance metric magnitude Markov models noise Olive-sided Flycatcher phonemes present point range recognition system recordings represented ripples sample points sampling rate Scrub Jay segment of speech sequence of labels signal similar sine wave sonagrams song feature Song Sparrow sound spectral peaks spectrum squawk Steller's Jay SUBSOURCE OF PHONE Swainson's Thrush syntactic Theorem thesis trachea Typical upward zero crossing vocal tract Warbling Vireo waveform Western Meadowlark whistled White-crowned Sparrow