Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 9 of 9 for “"Pitch Detection"”.
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Novel Pitch Detection Algorithm With Application to Speech Coding
… thesis introduces a novel method for accurate pitch detection and speech segmentation, named Multi-feature, Autocorrelation (ACR) and Wavelet Technique (MAWT). MAWT uses feature extraction, and ACR applied on Linear Predictive Coding (LPC) residuals, with a wavelet-based refinement step. MAWT …
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Basic spline wavelet transform and pitch detection of a speech signal
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1994.
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Noncontact heart rate measurement via period detection methods of periodic signals
… different signal processing methods utilized in pitch detection problems of periodic signals, namely zero-crossings, autocorrelation, maximum likelihood and Fourier-based methods, to the signal obtained from the average pixel values of the frames of a video recording of the subject’s face …
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Investigating Speaker Features From Very Short Speech Records
… manual intervention (in cases of inadequate pitch detection), and is particularly unique because it derives both the vocal tract and glottal signal estimates directly from the time-varying filter coefficients rather than from the prediction error signal. Using this procedure, several glottal …
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Bayesian methods in music modelling
… to improve the accuracy of existing multiple pitch detection systems and other musical signal processing applications whilst remaining feasible for real-time computation. At the lowest level the signal is modelled as a set of overlapping sinusoidal basis functions. The parameters of these …
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Pitch Estimation of Musical Signals
Can a computer algorithm assess musical pitch with results analogous to those of a trained human musician? This thesis attempts to answer that question by demonstration. It starts by examining the nature of pitch, and human spectrotemporal perception of music. In pitch vibrato, the frequency varies …
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A low cost digital vocoder using linear predictive techniques
… duration. These frames, which can cover several pitches, must be windowed to ensure stable LPC coefficients. The system developed takes as its source data for voiced speech a single pitch period, which for analysis is assumed periodic. This not only eliminates spectral distortion caused by …
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The auditory fingerprint : multidimensional characterization of individual pitch perception in musicians
… musical abilities such as absolute- and relative pitch perception or auditory imagery (audiation). However, relevant literature in the field regarding perceptual and psychophysical aspects of sound and particularly pitch perception is highly contradictory, and subjective differences are mostly …