Title:
復号装置、復号方法、符号化装置、符号化方法、及び編集装置
Document Type and Number:
Japanese Patent JP5635502
Kind Code:
B2
Abstract:
A decoding apparatus (10) is disclosed which includes: a storing means (11) for storing encoded audio signals including multi-channel audio signals; a transforming means (40) for transforming the encoded audio signals to generate transform block-based audio signals in a time domain; a window processing means (41) for multiplying the transform block-based audio signals by a product of a mixture ratio of the audio signals and a first window function, the product being a second window function; a synthesizing means (43) for overlapping the multiplied transform block-based audio signals to synthesize audio signals of respective channels; and a mixing means (14) for mixing audio signals of the respective channels between the channels to generate a downmixed audio signal. Furthermore, an encoding apparatus is also disclosed which downmixes the multi-channel audio signals, encodes the downmixed audio signals, and generates the encoded, downmixed audio signals.
Inventors:
高田 庸介
Application Number:
JP2011514573A
Publication Date:
December 03, 2014
Filing Date:
October 01, 2008
Export Citation:
Assignee:
ジーブイビービー ホールディングス エス．エイ．アール．エル．
International Classes:
G10L19/00; G10L19/008; H03M7/30; H04S3/00
Attorney, Agent or Firm:
Right wood Masayuki
Wood Kazuyoshi
Wood Kazuyoshi