Invention Grant
US09595262B2 Linear prediction based coding scheme using spectral domain noise shaping
有权
使用频域噪声整形的基于线性预测的编码方案
- Patent Title: Linear prediction based coding scheme using spectral domain noise shaping
- Patent Title (中): 使用频域噪声整形的基于线性预测的编码方案
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Application No.: US13966601Application Date: 2013-08-14
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Publication No.: US09595262B2Publication Date: 2017-03-14
- Inventor: Goran Markovic , Guillaume Fuchs , Nikolaus Rettelbach , Christian Helmrich , Benjamin Schubert
- Applicant: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
- Applicant Address: DE Munich
- Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
- Current Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
- Current Assignee Address: DE Munich
- Agency: Perkins Coie LLP
- Agent Michael A. Glenn
- Main IPC: G10L19/00
- IPC: G10L19/00 ; G10L19/012 ; G10K11/16 ; G10L19/005 ; G10L19/12 ; G10L19/03 ; G10L19/22 ; G10L21/0216 ; G10L25/78 ; G10L19/26 ; G10L19/04 ; G10L19/02 ; G10L25/06 ; G10L19/025 ; G10L19/107

Abstract:
An encoding concept which is linear prediction based and uses spectral domain noise shaping is rendered less complex at a comparable coding efficiency in terms of, for example, rate/distortion ratio, by using the spectral decomposition of the audio input signal into a spectrogram having a sequence of spectra for both linear prediction coefficient computation as well as spectral domain shaping based on the linear prediction coefficients. The coding efficiency may remain even if such a lapped transform is used for the spectral decomposition which causes aliasing and necessitates time aliasing cancellation such as critically sampled lapped transforms such as an MDCT.
Public/Granted literature
- US20130332153A1 LINEAR PREDICTION BASED CODING SCHEME USING SPECTRAL DOMAIN NOISE SHAPING Public/Granted day:2013-12-12
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