Audio decoding device
AssigneeSocionext Inc.
InventorsShuji MIYASAKA, Kazutaka ABE, Zong Xian LIU, Yong Hwee SIM, Anh Tuan TRAN
Life of this patent
Estimating the term…
Abstract
An input signal includes a channel-based audio signal and an object-based audio signal, and an audio encoding device includes an audio scene analysis unit configured to determine an audio scene from the input signal and detect audio scene information; a channel-based encoder that encodes the channel-based audio signal output from the audio scene analysis unit; an object-based encoder that encodes the object-based audio signal output from the audio scene analysis unit; and an audio scene encoding unit configured to encode the audio scene information.
Claims1
An audio decoding device that decodes an encoded signal including a channel-based encoded signal, an object-based encoded signal, and an audio scene encoded signal,
- the audio decoding device comprising:
- a demultiplexing unit configured to demultiplex the encoded signal into the channel-based encoded signal, the object-based encoded signal, and the audio scene encoded signal;
- an audio scene decoding unit configured to decode the audio scene encoded signal and output audio scene information;
- a channel-based decoder that decodes the channel-based encoded signal;
- an object-based decoder that decodes the object-based encoded signal by using the audio scene information;
- and
- an audio scene synthesis unit configured to combine an output signal of the channel-based decoder and an output signal of the object-based decoder based on speaker arrangement information provided separately from the audio scene information, and reproduce a combined audio scene synthesis signal,
- wherein the audio scene information is importance information of audio objects, and the audio decoding device skips an audio object included in the audio objects that has a low importance when a computational resource necessary for decoding is insufficient.
Dependencies are inferred from the claim text.