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.
Results
Showing 1 to 9 of 9 for “"spectrotemporal"”.
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Representation of statistical sound properties in human auditory cortex
… experimental studies. Study 1 controlled the spectrotemporal correlation in complex acoustic spectra and showed that activity in auditory association cortex increases as a function of spectrotemporal correlation. Study 2 demonstrated a functional hierarchy of the representation of auditory …
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Pitch Estimation of Musical Signals
… by examining the nature of pitch, and human spectrotemporal perception of music. In pitch vibrato, the frequency varies up and down over time, usually sinusoidally. At vibrato frequencies over about 4Hz, most listeners perceive pitch vibrato tones as having a single pitch. However, few …
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Statistical and Biological Analyses of Acoustic Signals in Estrildid Finches
… components: spectral, spectral shape, and spectrotemporal features. Support vector machine algorithms defined the species boundaries in the three-dimensional acoustic space and allowed us to quantify the volume and space occupied by each species, as well as the overlap between species. …
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Interrogating the infant mind with fMRI
… to music and speech cannot be explained by the spectrotemporal modulation statistics of those two auditory categories. In sum, my dissertation research finds that signatures of cortical organization of higher-level perceptual processing in adults are already present in young infants.
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Individual differences in supra-threshold auditory perception - mechanisms and objective correlates
… places enormous demands on the auditory system. Spectrotemporal overlap between sounds reduces modulations in the signals at the ears and causes masking, with problems exacerbated by reverberation. Consistent with this idea, many patients seeking audiological treatment seek help precisely because …
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Acoustic models of consonant recognition in cochlear implant users
… implants and to other factors, in particular the spectrotemporal distortions which occur at the interface between electrode array and auditory nervous system, including cross-channel interaction. The objective of the work reported here was to attempt to partial out the relative contribution of …
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Trends in Forest Recovery After Stand-Replacing Disturbance: A Spatiotemporal Evaluation of Productivity in Southeastern Pine Forests
… class, and pixels with a rapidly changing spectrotemporal profile, suggesting stand-replacing disturbance, were found using the Landscape Change Monitoring System (LCMS) Fast Loss product. Spectral recovery metrics for 3,654 randomly selected stands in 14 Level 3 EPA Ecoregions were derived …
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Toward an interpretive framework of two-dimensional speech-signal processing
… do not capture spectral, temporal, and joint spectrotemporal energy fluctuations (or "modulations") present in local time-frequency regions of the time-frequency distribution. Inspired by principles from image processing and evidence from auditory neurophysiological models, a variety of …