Title:
信号処理方法、信号処理装置、再生装置およびプログラム
Document Type and Number:
Japanese Patent JP4959861
Kind Code:
B1
Abstract:
The purpose of the present invention is to emphasize the bass sound without impairing the beat in music such as dance music. The audio signal processing unit (15) of the present invention is characterized by being provided with: a harmonic sound extraction block (31) for extracting a harmonic signal from the fundamental pitch in the original sound; a bass envelope generating block (32) for generating a bass envelope which is an envelope for a signal having a frequency equal to or below a predetermined frequency in the original sound; a level adjustment block (33) for adjusting the level of the harmonic signal in accordance with the level of the bass envelope; and an addition block (34) for adding the original sound and the harmonic signal after the level thereof was adjusted by means of the level adjustment block (33).
Inventors:
Masatake Otake
Application Number:
JP2011551357A
Publication Date:
June 27, 2012
Filing Date:
February 18, 2011
Export Citation:
Assignee:
Pioneer Corporation
International Classes:
G10L21/01; G10L21/0332; G10L25/51; G10L25/90; H04R3/04
Domestic Patent References:
| JP2010154141A | 2010-07-08 | |||
| JP2008283305A | 2008-11-20 |
Foreign References:
| WO2009004718A1 | 2009-01-08 |
Attorney, Agent or Firm:
Minoru Ochiai