Mixed sound imaging with separation capability using optical technique
| Project/Area Number |
23K19121
|
|---|
| Research Category |
Grant-in-Aid for Research Activity Start-up
|
| Allocation Type | Multi-year Fund |
|---|
| Review Section |
0302:Electrical and electronic engineering and related fields
|
|---|
| Research Institution | Kyoto Institute of Technology |
|---|
Principal Investigator |
ラジプット スディーシュ 京都工芸繊維大学, その他部局等, 特任研究員 (10874448)
|
|---|
| Project Period (FY) |
2023-08-31 – 2025-03-31
|
| Project Status |
Granted (Fiscal Year 2023)
|
| Budget Amount *help |
¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2024: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2023: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
|
|---|
| Keywords | Phase measurement / Sound field imaging / Digital holography |
|---|
| Outline of Research at the Start |
Mix sounds imaging with individual separation capability based on the principle of optics and deep learning will be proposed. And then, the developed new optical method for cocktail party solution in audible and inaudible ranges, multiple voice security, and microlevel size defect detection will also be explored. From proposed research project, several first-time research reports are expected.
|
| Outline of Annual Research Achievements |
We have improved reconstruction of voice data by using optical setup of parallel phase-shifting digital holography(PPSDH). I tried to record the multiple sound sources.
We explored existing system for an optical voice security of anticounterfeiting scheme that utilizes the optical recording of voice data using optical microphone based on PPSDH.
In an another direction, we developed a voice or acoustic signal authentication method based on similar concept by checking it with several recorded sound/voice sources. The proposed system is advantageous in testing different acoustic signals at 3D sensitive locations due to use of the holographic microphone recording.
Now we are constructing new setup to be used for proper separation and recording of multiple sound sources.
|
| Current Status of Research Progress |
Current Status of Research Progress
2: Research has progressed on the whole more than it was originally planned.
Reason
We have improved reconstruction of voice data by using optical setup of parallel phase-shifting digital holography(PPSDH). I tried to record the multiple sound sources.
Progress is very close to what I planned because the system started to give preliminary results. From the constructed system, we explored anticounterfeiting and authentication of different sound signals. The PPSDH system has also been used for temperature tomography by measuring phase distribution and by use of computed model.
Tried to find out suitable filtering methods to be used for voice separation.
|
| Strategy for Future Research Activity |
We plan to re-construct/modify existing setup by using some new advanced optical components for good recording of multiple sound sources. Planned and figured out deep learning or advanced filtering options are suitable to be used for proper separation.
Above steps may take 6 months in execution.
An alternative way to figure out different acoustic signal from recorded multiple sources could be through optical authentication. For that, we have also some testing and got some preliminary results of sound authentication by adding optical correlator in the system.
The new constructed optical setup will also be used to measure 3D phase distribution for temperature tomography.
Some non-interferometric algorithms will also be checked to measure 3D phase distribution.
|
Report
(1 results)
Research Products
(3 results)
-
[Journal Article] Optical Voice Security Scheme for Anticounterfeiting2024
Author(s)
Sudheesh K. Rajput, Shun Notte, Tomoyoshi Inoue, Ryuki Yamaguchi, Ryuju Todo, Yuki Kumon, Kenzo Nishio, Osamu Matoba4, and Yasuhiro Awatsuji
-
Journal Title
Optics and Lasers in Engineering
Volume: 173
Pages: 107892-107892
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
-
-
