## Automatic Bird Song Recognition |

### From inside the book

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Page 30

The

the strength of the corresponding complex wave, and X(m)'s phase (IPL), p.4)

represents its offset in time. Assuming that the x(n) are real rather than complex ...

The

**magnitude**(or "absolute value" or "modulus" ([PL), p. 4) ) of X(m) representsthe strength of the corresponding complex wave, and X(m)'s phase (IPL), p.4)

represents its offset in time. Assuming that the x(n) are real rather than complex ...

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8.1.2. The Cepstrum The cepstrum of a signal is the inverse Fourier transform of

the logarithm of the

the

8.1.2. The Cepstrum The cepstrum of a signal is the inverse Fourier transform of

the logarithm of the

**magnitude**of the Fourier transform of the signal [RS]. Takingthe

**magnitude**of the Fourier transformed signal removes the phase information ...Page 35

Phoneticians and other sound researchers are accustomed to seeing sonagrams

on which the horizontal axis is time, the vertical axis is frequency (mR/N), where F

is the sampling frequency of the N sample points, and the

Phoneticians and other sound researchers are accustomed to seeing sonagrams

on which the horizontal axis is time, the vertical axis is frequency (mR/N), where F

is the sampling frequency of the N sample points, and the

**magnitude**of the ...### What people are saying - Write a review

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60 Figure acoustic algorithm analysis average amplitude avian bird song bird species California Quail calls CDFE cepstral cepstral peak Cepstrum chirp feature vectors chirp list Clark's Nutcracker comparison Computer congruent corresponding described in Section detected difference dynamic time warping entire song excursion cycle Figure 11b formula Frequency Frequency Duration glottal Greenewalt harmonics Hence High Low High House Finch human speech recognition I I I individual inter-note distances internal tympaniform membranes Itakura distance length Linear Prediction Low High Low magnitude Markov models noise Olive-sided Flycatcher phase 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 spectrum squawk Steller's Jay subsource Swainson's Thrush syntactic Theorem thesis trachea Typical upward zero crossing vibration vocal tract Warbling Vireo waveform Western Meadowlark whistled White-crowned Sparrow