Pitch detection method and apparatus
First Claim
1. A pitch detection method comprising:
- decomposing voice data into even-number symmetrical components on a basis of a center peak of the voice data included in a single frame; and
determining a location of a local peak corresponding to a maximum segment correlation value among segment correlation values between a reference point and at least one or more local peaks in relation to the even-number symmetrical components, as a pitch period.
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Abstract
A pitch detection method and apparatus, the pitch detection apparatus includes: a data rearrangement unit which rearranges voice data on the basis of a center peak of the voice data included in a single frame; a decomposition unit which decomposes rearranged voice data into even symmetrical components on the basis of a center peak; a pitch determination unit which obtains a segment correlation value between a reference point and at least one or more local peaks in relation to even symmetrical components, and determines the location of a local peak corresponding to a maximum segment correlation value among the obtained segment correlation values, as a pitch period.
51 Citations
24 Claims
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1. A pitch detection method comprising:
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decomposing voice data into even-number symmetrical components on a basis of a center peak of the voice data included in a single frame; and
determining a location of a local peak corresponding to a maximum segment correlation value among segment correlation values between a reference point and at least one or more local peaks in relation to the even-number symmetrical components, as a pitch period. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A computer readable recording medium having embodied thereon a computer program for a pitch detection method comprising:
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decomposing voice data into even-number symmetrical components on a basis of a center peak of the voice data included in a single frame; and
determining a location of a local peak corresponding to a maximum segment correlation value among segment correlation values between a reference point and at least one or more local peaks in relation to the even-number symmetrical components, as a pitch period.
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12. A pitch detection apparatus comprising:
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a decomposition unit which decomposes voice data into even-number symmetrical components on a basis of a center peak of the voice data included in a single frame; and
a pitch determination unit which determines a location of a local peak corresponding to a maximum segment correlation value among segment correlation values between a reference point and at least one or more local peaks in relation to the even-number symmetrical components, as a pitch period. - View Dependent Claims (13, 14, 15, 16, 17)
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18. A pitch detection apparatus comprising:
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a data rearrangement unit shifting voice data based on a determined center peak included in a single frame unit;
a decomposition unit decomposing the shifted voice data into even-number symmetrical components; and
a pitch determination unit determining a location of a local peak corresponding to a maximum segment correlation value among segment correlation values between a reference point and at least one or more local peaks in relation to the even-number symmetrical components, as a pitch period. - View Dependent Claims (19, 20, 21)
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22. A pitch detection method comprising:
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shifting voice data based on a determined center peak included in a single frame unit;
decomposing the shifted voice data into even-number symmetrical components; and
determining a location of a local peak corresponding to a maximum segment correlation value among segment correlation values between a reference point and at least one or more local peaks in relation to the even-number symmetrical components, as a pitch period. - View Dependent Claims (23, 24)
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Specification