Data processing: speech signal processing – linguistics – language – Speech signal processing – Application
Patent
1998-07-01
2000-09-12
Hudspeth, David R.
Data processing: speech signal processing, linguistics, language
Speech signal processing
Application
434185, G10L 2102
Patent
active
061190896
ABSTRACT:
A listener's ability to recognize and identify similar sounds is improved by forming exaggerated sounds which differ in spectral/temporal energy distribution from one another more than the similar sounds differ from one another and in generally the same way in which the similar sounds differ and testing the listener's ability to recognize and identify the exaggerated sounds. The exaggerated sounds are formed as follows: The similar sounds are spectrally transformed into a coordinate space and a linear function is projected between a pair of points representing the similar sounds in the coordinate space. Between the pair of points, the linear function represents a continuum of sounds between the similar sounds. To exaggerate the sounds, points are extrapolated outward from the pair of points along the linear function. An inverse transformation is applied to the extrapolated points to produce exaggerated sounds which differ from one another more than the similar sounds differ and in generally the same way that the similar sounds differ. Filtering extrapolation coefficients before extrapolating and filtering inverse transformation coefficients before applying the inverse transform provide pleasant, naturally sounding exaggerated sound.
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patent: 5737719 (1998-04-01), Terry
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L.R. Rabiner and R.W. Schafer, "Digital Processing of Speech Signals," Prentice-Hall, pp. 82-106, and 396-453.
Winifred Strange, "Speech Perception and Linguistic Experience, Issues in Cross-Language Research," York Press, pp. 358-359, 396-397, 418-421, and 428-429.
Hudspeth David R.
Ivey James D.
Scientific Learning Corp.
Storm Donald L.
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