Speech enhancement apparatus and method
AssigneeSamsung Electronics Co., Ltd.
InventorsGiljin Jang, Jeongsu Kim, Kwangcheol Oh, Sungcheol Kim
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Abstract
A speech enhancement apparatus and method and a computer-readable recording medium having a program recorded thereon execute a speech enhancement method. The speech enhancement apparatus includes a spectrum subtraction unit generating a subtracted spectrum by subtracting an estimated noise spectrum from a received speech spectrum, a correction function modeling unit generating a correction function to minimize a noise spectrum using variation of a noise spectrum included in training data, and a spectrum correction unit generating a corrected spectrum by correcting the subtracted spectrum using the correction function.
Claims39
A speech enhancement apparatus comprising:
- a spectrum subtraction unit generating a subtracted spectrum by subtracting an estimated noise spectrum from a received speech spectrum;
- a correction function modeling unit generating a correction function to minimize error in a noise spectrum of the subtracted spectrum using variation of a noise spectrum included in training data;
- and
- a spectrum correction unit generating a corrected spectrum by correcting the subtracted spectrum using the correction function.
A speech enhancement apparatus comprising:
- a spectrum subtraction unit subtracting an estimated noise spectrum from a received speech spectrum, and generating a corrected subtracted spectrum, in which a negative number portion is corrected;
- and
- a spectrum enhancement unit enhancing the corrected subtracted spectrum by enlarging a peak and suppressing a valley in the corrected subtracted spectrum.
A speech enhancement method comprising:
- generating a subtracted spectrum by subtracting an estimated noise spectrum from a received speech spectrum;
- generating a correction function to minimize error in a noise spectrum of the subtracted spectrum using variation of a noise spectrum included in training data;
- and
- generating a corrected spectrum by correcting the subtracted spectrum using the correction function.
A speech enhancement method comprising:
- subtracting an estimated noise spectrum from a received speech spectrum and generating a subtracted spectrum wherein a negative number portion is corrected to generate a corrected spectrum;
- and
- enhancing the corrected spectrum by enlarging a peak and suppressing a valley in the corrected spectrum.
A computer-readable recording medium recording a program to cause a computer to perform a speech enhancement method, the method comprising:
- generating a subtracted spectrum by subtracting an estimated noise spectrum from a received speech spectrum;
- generating a correction function to minimize error in a noise spectrum of the subtracted spectrum using transition of a noise spectrum included in training data;
- and
- generating a corrected spectrum by correcting the subtracted spectrum using the correction function.
A computer-readable recording medium recording a program to cause a computer to perform a speech enhancement method, the method comprising:
- subtracting an estimated noise spectrum from a received speech spectrum and generating a subtracted spectrum wherein a negative number portion is corrected, to provide a corrected subtracted spectrum;
- and
- enhancing the corrected subtracted spectrum by enlarging a peak and suppressing a valley in the corrected subtracted spectrum.
Dependencies are inferred from the claim text.