Process for measuring the resemblance between sound samples and

Details Process for measuring the resemblance between sound samples and Process for measuring the resemblance between sound samples and

1993-09-21

1995-11-21

Moore, David K.

Electrical audio signal processing systems and devices

Hearing aids, electrical

Specified casing or housing

395 24, 395 248, 395 252, 381 41, G10L 506, G10L 900

Patent

active

054695295

ABSTRACT:
A process and apparatus for measuring the resemblance between sound samples incorporating a learning phase and a test phase, each having a digital acquisition and preprocessing stage, an order p acoustic analysis stage and a p.times.p covariance matrix calculating stage with respect to the resulting vector signal, the learning phase also having a reference X covariance matrix inversion stage and a stage of storing the thus obtained matrix X.sup.-1 in a dictionary, the test phase incorporating a stage of multiplying the covariance matrix of test Y with the reference matrix X.sup.-1, a stage of extracting all or part of the p eigenvalues .lambda.k of said matrix product and a calculating stage using a family of functions f, called generalized sphericity functions, so as to obtain a digital value measuring the resemblance between the considered test sample and the reference samples of the dictionary. Alternative implementations are also described, which advantageously allow the same result to be obtained without requiring the explicit calculation of eigenvalues.

REFERENCES:
patent: 4181821 (1980-01-01), Pirz et al.
patent: 4718088 (1988-01-01), Baker et al.
patent: 4837830 (1989-06-01), Wrench, Jr. et al.
patent: 5072452 (1991-12-01), Brown et al.
patent: 5168524 (1992-12-01), Kroeker et al.
patent: 5293584 (1994-03-01), Brown et al.
patent: 5333236 (1994-07-01), Bahl et al.
Speech Communication, vol. 8, No. 1, 1989, pp. 35-44, A. Cohen, et al., "On Text Independent Speaker Identification Using A Quadratic Classifier With Optimal Features".
ICASSP 90, vol. 1, Apr. 3, 1990, pp. 289-292, H. Gish, "Robust Discrimination in Automatic Speaker Identification".

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