公开(公告)号：US20170316786A1

公开(公告)日：2017-11-02

申请号：US15652055

申请日：2017-07-17

Applicant: Electronics and Telecommunications Research Institute ,  THE KOREA DEVELOPMENT BANK

Inventor： Seung Kwon BEACK ,  Tae Jin LEE ,  Jong Mo SUNG ,  Kyeong Ok KANG ,  Keun Woo CHOI

IPC: G10L19/00 ,  G10L19/008 ,  G10L19/02 ,  G10L19/22 ,  G10L19/002

CPC classification number: G10L19/0017 ,  G10L19/002 ,  G10L19/008 ,  G10L19/0212 ,  G10L19/22

Abstract: An audio encoding apparatus to encode an audio signal using lossless coding or lossy coding and an audio decoding apparatus to decode an encoded audio signal are disclosed. An audio encoding apparatus according to an exemplary embodiment may include an input signal type determination unit to determine a type of an input signal based on characteristics of the input signal, a residual signal generation unit to generate a residual signal based on an output signal from the input signal type determination unit, and a coding unit to perform lossless coding or lossy coding using the residual signal.