Title:
SIGNAL PROCESSING METHOD, SIGNAL PROCESSING DEVICE, REPRODUCTION DEVICE, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2012/111043
Kind Code:
A1
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:
OTAKE MASATOMO (JP)
Application Number:
PCT/JP2011/000921
Publication Date:
August 23, 2012
Filing Date:
February 18, 2011
Export Citation:
Assignee:
PIONEER CORP (JP)
OTAKE MASATOMO (JP)
OTAKE MASATOMO (JP)
International Classes:
G10L21/01; G10L21/0332; G10L25/51; G10L25/90; H04R3/04
Domestic Patent References:
| WO2009004718A1 | 2009-01-08 |
Foreign References:
| JP2010154141A | 2010-07-08 | |||
| JP2008283305A | 2008-11-20 |
Attorney, Agent or Firm:
OCHIAI, MINORU (JP)
Ochiai 稔 (JP)
Ochiai 稔 (JP)
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Claims: