Electronics and Telecommunications Research Institute

Kyonggi University Industry & Academia Cooperation Foundation

Nippon Hoso' Kyokai

Etri

Jae Hyoun Yoo

Kyeong Ok Kang

Jeong Il Seo

Tae Jin Lee

Yong Ju Lee

Jin Woong Kim

Seung Kwon Beack

Tae Jin Park

Keun Woo Choi

Dae Young Jang

Jong Mo Sung

Seok Pil Lee

Kaoru Watanabe

Satoshi Oode

Ikuko Sawaya

Min Soo Kim

Jin Woo Hong

Philip Arthur Nelson

Min Cheol Shin

Filippo Fazi

In Seon Jang

Jung Woo Choi

Hyun Joo Chung

Sang Bae Chon

Seung Chul Ham

Seok Jin Lee

Koang Mo Sung

Disclosed is an apparatus and method for processing a multichannel audio signal. A multichannel audio signal processing method may include: generating an N-channel audio signal of N channels by down-mixing an M-channel audio signal of M channels; and generating a stereo audio signal by performing binaural rendering of the N-channel audio signal.

Apparatus and method for processing multi-channel audio signal

Disclosed is a binaural rendering method and apparatus for decoding a multichannel audio signal. The binaural rendering method may include: extracting an early reflection component and a late reverberation component from a binaural filter; generating a stereo audio signal by performing binaural rendering of a multichannel audio signal base on the early reflection component; and applying the late reverberation component to the generated stereo audio signal.

Binaural rendering method and apparatus for decoding multi channel audio

An audio metadata providing apparatus and method and a multichannel audio data playback apparatus and method to support a dynamic format conversion are provided. Dynamic format conversion information may include information about a plurality of format conversion schemes that are used to convert a first format set by a writer of multichannel audio data into a second format that is based on a playback environment of the multichannel audio data and that are set for each of playback periods of the multichannel audio data. The audio metadata providing apparatus may provide audio metadata including the dynamic format conversion information. The multichannel audio data playback apparatus may identify the dynamic format conversion information from the audio metadata, may convert the first format of the multichannel audio data into the second format based on the identified dynamic format conversion information, and may play back the multichannel audio data with the second format.

Audio metadata providing apparatus and method, and multichannel audio data playback apparatus and method to support dynamic format conversion

An audio metadata providing apparatus and method and a multichannel audio data playback apparatus and method to support a dynamic format conversion are provided. Dynamic format conversion information may include information about a plurality of format conversion schemes that are used to convert a first format set by an author of multichannel audio data into a second format that is based on a playback environment of the multichannel audio data and that are each set for corresponding playback periods of the multichannel audio data. The audio metadata providing apparatus may provide audio metadata including the dynamic format conversion information. The multichannel audio data playback apparatus may identify the dynamic format conversion information from the audio metadata, may convert the first format of the multichannel audio data into the second format based on the identified dynamic format conversion information, and may play back the multichannel audio data in the second format.

Provided is an apparatus and method for frontal audio rendering in interaction with a screen size, the method including measuring playback environment information used to play back input content; and correcting an audio signal to be output based on the measured playback environment information and production environment information included in the input content.

Apparatus and method for frontal audio rendering in interaction with screen size

An apparatus and method for generating audio data and an apparatus and method for playing audio data may be disclosed, in which the apparatus for playing the audio data may extract a descriptor related to a multichannel audio signal from a bitstream generated by the apparatus for generating the audio data, and play the multichannel audio signal, based on the extracted descriptor, and the descriptor may include information on an audio signal included in the multichannel audio signal.

Apparatus and method for generating audio data, and apparatus and method for playing audio data

An audio system and method using indoor response estimation are disclosed. An acoustic feature prediction method of the audio system may include generating a detection signal based on an input signal and a modulation code; generating an acoustic signal based on the detection signal and outputting the acoustic signal to a plurality of speakers; measuring acoustic signals output from the speakers where the speakers are installed; and predicting acoustic features related to the speakers based on the measured acoustic signals and the modulation code.

Audio system and method for predicting acoustic feature

Growing community of inventors

Daejeon, South Korea

Jae Hyoun Yoo