## Automatic Bird Song Recognition |

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Page 32

LPC analysis In human speech analysis, spectral comparisons are usually done

using

waveform is assumed to be accurately represented by a vector a of coefficients ...

LPC analysis In human speech analysis, spectral comparisons are usually done

using

**Linear Prediction**Coding (LPC) techniques (IRS), Chapter 8). The speechwaveform is assumed to be accurately represented by a vector a of coefficients ...

Page 45

... window it for further processing (using rectangular or Hamming windows [RS],

with first difference taken if desired to emphasize high frequencies [RS]), Fourier

transform it, or fit

...

... window it for further processing (using rectangular or Hamming windows [RS],

with first difference taken if desired to emphasize high frequencies [RS]), Fourier

transform it, or fit

**Linear Prediction**Coefficients (LPC's) to it. The LPC fit can then...

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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