Invention Grant
US08086446B2 Method and apparatus for non-overlapped transforming of an audio signal, method and apparatus for adaptively encoding audio signal with the transforming, method and apparatus for inverse non-overlapped transforming of an audio signal, and method and apparatus for adaptively decoding audio signal with the inverse transforming
有权
用于音频信号的非重叠变换的方法和装置，用于对音频信号进行逆非重叠变换的变换，方法和装置对音频信号进行自适应编码的方法和装置，以及用于使用音频信号自适应地解码音频信号的方法和装置 逆变换
- Patent Title: Method and apparatus for non-overlapped transforming of an audio signal, method and apparatus for adaptively encoding audio signal with the transforming, method and apparatus for inverse non-overlapped transforming of an audio signal, and method and apparatus for adaptively decoding audio signal with the inverse transforming
- Patent Title (中): 用于音频信号的非重叠变换的方法和装置，用于对音频信号进行逆非重叠变换的变换，方法和装置对音频信号进行自适应编码的方法和装置，以及用于使用音频信号自适应地解码音频信号的方法和装置 逆变换
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Application No.: US11295648Application Date: 2005-12-07
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Publication No.: US08086446B2Publication Date: 2011-12-27
- Inventor: Eunmi Oh , Junghoe Kim , Boris Kudryashov , Konstantin Osipov
- Applicant: Eunmi Oh , Junghoe Kim , Boris Kudryashov , Konstantin Osipov
- Applicant Address: KR Suwon-Si
- Assignee: Samsung Electronics Co., Ltd.
- Current Assignee: Samsung Electronics Co., Ltd.
- Current Assignee Address: KR Suwon-Si
- Agency: Staas & Halsey LLP
- Priority: KR10-2004-0102303 20041207
- Main IPC: G10L19/02
- IPC: G10L19/02
Abstract:
A method and apparatus for transforming an audio signal, a method and apparatus for adaptively encoding an audio signal, a method and apparatus for inversely transforming an audio signal, and a method and apparatus for adaptively decoding an audio signal. The method of transforming an audio signal includes determining a transform unit into which the audio signal in a time domain is to be transformed into an audio signal in a frequency domain, and transforming the audio signal into an audio signal in the frequency domain according to the determined transform units using a window coefficient other than 0. Accordingly, it is possible to minimize distortion of the audio signal when encoding the audio signal even at a high bit rate while increasing efficiency of compression.
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