Pitch detection method and apparatus
AssigneeSamsung Electronics Co., Ltd.
InventorKwangcheol Oh
Life of this patent
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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.
Claims24
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.
A computer readable recording medium having embodied thereon a computer program for 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.
A pitch detection apparatus comprising:
- 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.
A pitch detection apparatus comprising:
- 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.
A pitch detection method comprising:
- 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.
Dependencies are inferred from the claim text.