Title:
DISPLAY PROCESSING DEVICE AND DISPLAY PROCESSING METHOD
Document Type and Number:
Japanese Patent JP2019083383
Kind Code:
A
Abstract:
To display an acoustic state within a sound field space in an appropriate manner.SOLUTION: An instantaneous particle speed calculation unit 730 calculates an instantaneous particle speed u(t) and an instantaneous sound pressure calculation unit 740 calculates instantaneous sound pressure p(t) on the basis of a speed potential φ(ω) calculated on the basis of sound field identifying data by a speed potential calculation unit 720. Next, an instantaneous acoustic intensity calculation unit 750 calculates instantaneous acoustic intensity TIN(t) at each position on an analysis surface (P) on the basis of the instantaneous particle speed u(t) and the instantaneous sound pressure p(t). Then, a display control unit 760 generates display data relating to information SIN(t) on acoustic intensity at each position on the analysis surface obtained by adding color information corresponding to a value of instantaneous sound pressure p(t) at that position on the analysis surface to the instantaneous acoustic intensity TIN(t), and sends the generated display data to a display unit 770.SELECTED DRAWING: Figure 1
Inventors:
NOHARA MANABU
HASEGAWA TOMOKI
HASEGAWA TOMOKI
Application Number:
JP2017208824A
Publication Date:
May 30, 2019
Filing Date:
October 30, 2017
Export Citation:
Assignee:
PIONEER ELECTRONIC CORP
International Classes:
H04S7/00
Domestic Patent References:
| JP2012039206A | 2012-02-23 | |||
| JP2010210277A | 2010-09-24 | |||
| JPH04290930A | 1992-10-15 | |||
| JPS6469921A | 1989-03-15 |
Foreign References:
| WO2009153999A1 | 2009-12-23 |
Attorney, Agent or Firm:
Ayabune International Patent Office