Title:
オーディオ符号化装置、オーディオ符号化方法、オーディオ符号化プログラム及びオーディオ復号装置
Document Type and Number:
Japanese Patent JP6299202
Kind Code:
B2
Abstract:
An audio encoding device includes a processor; and a memory which stores a plurality of instructions, which when executed by the processor, cause the processor to execute: mixing a channel signal of a first number included in a plurality of channels contained in an audio signal as a downmix signal of a second number; calculating a residual signal representing an error between the downmix signal and the channel signal of the first number; determining a window length of the downmix signal; and performing orthogonal transformation of the downmix signal and the residual signal based on the window length.
Inventors:
Youhei Kishi
Akira Kamano
Takeshi Otani
Akira Kamano
Takeshi Otani
Application Number:
JP2013259524A
Publication Date:
March 28, 2018
Filing Date:
December 16, 2013
Export Citation:
Assignee:
富士通株式会社
International Classes:
G10L19/008; G10L19/00; G10L19/022; G10L25/45; H03M7/30
Domestic Patent References:
| JP2013195706A |
Attorney, Agent or Firm:
Kenji Shimoda