MPEG AUDIO ENCODING METHOD AND APPARATUS USING MOD

专利名称：MPEG AUDIO ENCODING METHOD AND

APPARATUS USING MODIFIED DISCRETECOSINE TRANSFORM

发明人：Ho-Jin HA申请号：US12104971申请日：20080417

公开号：US20080212671A1公开日：20080904

专利附图：

摘要：An MPEG audio encoding method, a method for determining a window typewhen encoding MPEG audio, a psychoacoustic modeling method when encoding MPEG

audio, an MPEG audio encoding apparatus, an apparatus for determining a window typewhen encoding MPEG audio, and a psychoacoustic modeling apparatus in an MPEG audioencoding system are provided. The MPEG audio encoding method comprises performingmodified discrete cosine transform (MDCT) on an input audio signal in a time domain; withthe MDCT performed MDCT coefficients as an input, performing psychoacoustic model;and by using the result of performing the psychoacoustic model, performingquantization, and packing a bitstream. According to the method, complexity ofcomputation can be reduced and waste of bits can be prevented.

申请人：Ho-Jin HA

地址：Seoul KR

国籍：KR

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