Automatic Bird Song Recognition |
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Page 30
... magnitude ( or " absolute value " or " modulus " ( [ PL ] , p . 4 ) ) of X ( m ) represents the strength of the corresponding complex wave , and X ( m ) ' s phase ( [ PL ] , p.4 ) represents its offset in time . Assuming that the x ( n ) ...
... magnitude ( or " absolute value " or " modulus " ( [ PL ] , p . 4 ) ) of X ( m ) represents the strength of the corresponding complex wave , and X ( m ) ' s phase ( [ PL ] , p.4 ) represents its offset in time . Assuming that the x ( n ) ...
Page 31
... magnitude relative to those toward the middle . This last option is often accomplished by multiplying the sequence ... magnitude of the Fourier transform of the signal [ RS ] . Taking the magnitude of the Fourier transformed signal ...
... magnitude relative to those toward the middle . This last option is often accomplished by multiplying the sequence ... magnitude of the Fourier transform of the signal [ RS ] . Taking the magnitude of the Fourier transformed signal ...
Page 35
... magnitude of the X ( m ) is represented by the darkness of the graph at the appropriate point . The sonagram is ... magnitudes || X ( m ) || were compared . Some of these are shown in Figures 10-13 35.
... magnitude of the X ( m ) is represented by the darkness of the graph at the appropriate point . The sonagram is ... magnitudes || X ( m ) || were compared . Some of these are shown in Figures 10-13 35.
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