Device and method for generating audio data, and device and method for playing audio data
AssigneesElectronics and Telecommunications Research Institute, Nippon Hoso Kyokai
InventorsJae Hyoun Yoo, Tae Jin Lee, Kyeong Ok Kang, Kaoru Watanabe, Satoshi Oode, Ikuko Sawaya
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Abstract
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.
Claims17
An apparatus for playing audio data, the apparatus comprising:
- a multi channel audio signal extractor to extract a multi channel audio signal included in a bitstream, wherein the multi channel audio signal is generated based on a plurality of channel audio signals and object audio signals;
- a descriptor extractor to extract a descriptor associated with the multi channel audio signal from the bitstream;
- and
- a player to play the multi channel audio signal, based on the extracted descriptor,
- wherein the descriptor includes information associated with an audio signal included in the multi channel audio signal,
- wherein the descriptor comprises:
- (i) information related to the number of channels, channel label, and spatial position of channel,
- (ii) information related to a distance from a center of an audio signal playing space to a position where the multi channel audio signal is played in the audio signal playing space,
- (iii) information related to time and position determined based on moving of object audio signals.
An apparatus for playing audio data, the apparatus comprising:
- a multi channel audio signal generator to generate a multi channel audio signal, wherein the multi channel audio signal is generated based on a plurality of channel audio signals and object audio signals;
- a descriptor generator to generate a descriptor for representing the multi channel audio signal;
- and
- a bitstream generator to generate the descriptor and the multi channel audio signal in a form of a bitstream,
- wherein the descriptor includes:
- (i) information related to the number of channels, channel label, and spatial position of channel,
- (ii) information related to a distance from a center of an audio signal playing space to a position where the multi channel audio signal is played in the audio signal playing space,
- (iii) information related to time and position determined based on moving of object audio signals.
A method for playing audio data, the method comprising:
- extracting a multi channel audio signal included in a bitstream generated by an apparatus for generating audio data, wherein the multi channel audio signal is generated based on a plurality of channel audio signals and object audio signals;
- extracting a descriptor for representing the multi channel audio signal from the bitstream;
- and
- playing the multi channel audio signal, based on the extracted descriptor,
- wherein the descriptor includes:
- (i) information related to the number of channels, channel label, and spatial position of channel,
- (ii) information related to a distance from a center of an audio signal playing space to a position where the multi channel audio signal is played in the audio signal playing space,
- (iii) information related to time and position determined based on moving of object audio signals.
Dependencies are inferred from the claim text.