Bandwidth extension method and apparatus
US-2016196829-A1 · Jul 7, 2016 · US
Method and Apparatus for Detecting Correctness of Pitch Period
US2015073781A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2015073781-A1 |
| Application number | US-201414543320-A |
| Country | US |
| Kind code | A1 |
| Filing date | Nov 17, 2014 |
| Priority date | May 18, 2012 |
| Publication date | Mar 12, 2015 |
| Grant date | — |
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Abstract
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A method and an apparatus for detecting correctness of a pitch period. The method for detecting correctness of a pitch period includes determining, according to an initial pitch period of an input signal in a time domain, a pitch frequency bin of the input signal, where the initial pitch period is obtained by performing open-loop detection on the input signal; determining, based on an amplitude spectrum of the input signal in a frequency domain, a pitch period correctness decision parameter, associated with the pitch frequency bin, of the input signal; and determining correctness of the initial pitch period according to the pitch period correctness decision parameter. The method and apparatus for detecting correctness of a pitch period according to the embodiments of the present invention can improve, based on a relatively less complex algorithm, accuracy of detecting correctness of a pitch period.
First claim
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What is claimed is: 1 . A method for detecting correctness of a pitch period comprising: determining, according to an initial pitch period of an input signal in a time domain, a pitch frequency bin of the input signal, wherein the initial pitch period is obtained by performing open-loop detection on the input signal; determining, based on an amplitude spectrum of the input signal in a frequency domain, a pitch period correctness decision parameter of the input signal associate…
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Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
- G10L25/90Primary
Physics · mapped topic
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- What does patent US2015073781A1 cover?
- A method and an apparatus for detecting correctness of a pitch period. The method for detecting correctness of a pitch period includes determining, according to an initial pitch period of an input signal in a time domain, a pitch frequency bin of the input signal, where the initial pitch period is obtained by performing open-loop detection on the input signal; determining, based on an amplitude…
- Who is the assignee on this patent?
- Huawei Tech Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification G10L25/90. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Thu Mar 12 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).