发明名称 |
LINEAR PREDICTION BASED CODING SCHEME USING SPECTRAL DOMAIN NOISE SHAPING |
摘要 |
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 comprising 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. |
申请公布号 |
CA2827277(A1) |
申请公布日期 |
2012.08.23 |
申请号 |
CA20122827277 |
申请日期 |
2012.02.14 |
申请人 |
FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V. |
发明人 |
MARKOVIC, GORAN;FUCHS, GUILLAUME;RETTELBACH, NIKOLAUS;HELMRICH, CHRISTIAN;SCHUBERT, BENJAMIN |
分类号 |
G10L19/06;G10L19/012 |
主分类号 |
G10L19/06 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|