Lg Electronics Inc.

Electronics and Telecommunications Research Institute

Seoul National University

Koeng Mo Sung

Lae Hoon Kim

Jin Woo Hong

Seung Kwon Beack

Jeong Il Seo

Sang Bae Chon

Kyeong Ok Kang

In Seon Jang

Min Soo Hahn

Han Moon

Jeong Ii Seo

Seung Kwon Information And Communication Beack

A method for identifying a frame type is disclosed. The present invention includes receiving current frame type information, obtaining previously received previous frame type information, generating frame identification information of a current frame using the current frame type information and the previous frame type information, and identifying the current frame using the frame identification information. And, a method for identifying a frame type is disclosed. The present invention includes receiving a backward type bit corresponding to current frame type information, obtaining a forward type bit corresponding to previous frame type information, generating frame identification information of a current frame by placing the backward type bit at a first position and placing the forward type bit at a second position.

Method and an apparatus for identifying frame type

Provided is a method and apparatus for encoding/decoding a multi-channel audio signal. The apparatus for encoding a multi-channel audio signal includes a frame converter for converting the multi-channel audio signal into a framed audio signal; means for downmixing the framed audio signal; means for encoding the downmixed audio signal; a source location information estimator for estimating source location information from the framed multi-channel audio signal; means for quantizing the estimated source location information; and means for multiplexing the encoded audio signal and the quantized source location information, to generate an encoded multi-channel audio signal.

Method and apparatus for encoding and decoding multi-channel audio signal using virtual source location information

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Seoul, South Korea

Koeng Mo Sung