Samsung Electronics Co., Ltd.

Mcube Technology Co., Ltd.

Korea Advanced Institute of Science and Technology

Samsung Electron Devices Co., Ltd.

Jung-hoe Kim

Eun-mi Oh

Ki-hyun Choo

Chang-yong Son

Ho-sang Sung

Kang-eun Lee

Anton Porov

Sang-Wook Kim

Sergey Petrov

Eun Mi Oh

Ki Hyun Choo

Boris D Kudryashov

Jeong-Han Yi

Seung-tae Jung

Miao Lei

Ho Sang Sung

Soo-yeol Lee

Dong-heon Kang

Hyeon-Yong Jang

Konstantin Sergeevich Osipov

Chang-Wook Moon

Kang Eun Lee

Chang Yong Son

Tae-Seok Park

Doh-hyung Kim

Kang-suk Lee

Joon-Ho Choi

J M Lebeault

Seong-heon Kim

Won Yi

Seung-Tai Kim

Min-Hyoung Cho

Sang-bok Nam

Chi-woong Mun

Ronald F Holsinger

Woan Yi

Provided are a frame error concealment method and apparatus and an error concealment scheme construction method and apparatus. The frame error concealment method includes generating a new signal by synthesizing a plurality of previous signals that are similar to a signal of an error frame and reconstructing the signal of the error frame using the generated signal.

Frame error concealment method and apparatus and error concealment scheme construction method and apparatus

An error concealment method and apparatus for an audio signal and a decoding method and apparatus for an audio signal using the error concealment method and apparatus. The error concealment method includes selecting one of an error concealment in a frequency domain and an error concealment in a time domain as an error concealment scheme for a current frame based on a predetermined criteria when an error occurs in the current frame, selecting one of a repetition scheme and an interpolation scheme in the frequency domain as the error concealment scheme for the current frame based on a predetermined criteria when the error concealment in the frequency domain is selected, and concealing the error of the current frame using the selected scheme.

Error concealment method and apparatus for audio signal and decoding method and apparatus for audio signal using the same

A frame error concealment method and apparatus and a decoding method and apparatus using the same. The frame error concealment method includes setting a concealment method to conceal an error based on one or more signal characteristics of an error frame having the error and concealing the error using the set concealment method.

Frame error concealment method and apparatus and decoding method and apparatus using the same

Provided is a method and apparatus for encoding/decoding an audio signal. Sections which are not used to output noise components near important spectral components and sub-bands which are not used to output noise components, are determined to be encoded or decoded, so that the efficiency of encoding and decoding an audio signal increases, and sound quality can be improved using less bits.

Method and apparatus for encoding and decoding noise signal

Provided are a method and apparatus for encoding and decoding an audio signal. According to the present application, a signal of a high frequency band above a preset frequency band is adaptively encoded or decoded in the time domain or in the frequency domain by using a signal of a low frequency band below the preset frequency band. As such, the sound quality of a high frequency signal is not deteriorate even when an audio signal is encoded or decoded by using a small number of bits and thus coding efficiency may be maximized.

Method and apparatus for adaptively encoding and decoding high frequency band

A method, medium, and apparatus encoding and/or decoding a multichannel audio signal. The method includes detecting the type of spatial extension data included in an encoding result of an audio signal, if the spatial extension data is data indicating a core audio object type related to a technique of encoding core audio data, detecting the core audio object type; decoding core audio data by using a decoding technique according to the detected core audio object type, if the spatial extension data is residual coding data, decoding the residual coding data by using the decoding technique according to the core audio object type, and up-mixing the decoded core audio data by using the decoded residual coding data. According to the method, the core audio data and residual coding data may be decoded by using an identical decoding technique, thereby reducing complexity at the decoding end.

Method, medium, and apparatus encoding and/or decoding multichannel audio signals

Provided are a method and apparatus for encoding and decoding a stereo signal or a multi-channel signal. According to the method and apparatus, a stereo signal or a multi-channel signal can be encoded and/or decoded by generating parameters based on a mono signal.

Method and apparatus for generating a stereo signal from a down-mixed mono signal

A method for coding and decoding an audio signal or speech signal and an apparatus adopting the method are provided.

Method for encoding and decoding an audio signal and apparatus for same

A method, medium, and apparatus encoding and/or decoding an audio signal to surround data. While encoding spatial information, which can up-mix an audio signal to a surround signal, to extension data, a length of a payload corresponding to the spatial information is encoded and a payload of the spatial information is decoded using the length of the payload. Accordingly, compatibility of the spatial information can be provided, and the spatial information can be transmitted by effectively embedding the spatial information.

Method, medium, and apparatus encoding and/or decoding extension data for surround

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Seoul, South Korea

Jung-hoe Kim