GPU-based real-time beamforming for large arrays of optical wireless acoustic sensors
-
- Pablo Nava Gabriel
- NTT Communication Science Laboratories, Nippon Telegraph and Telephone Corporation
-
- Nguyen Hoang Duy
- NTT Communication Science Laboratories, Nippon Telegraph and Telephone Corporation
-
- Hioka Yusuke
- Department of Mechanical Engineering, University of Auckland
-
- Kamamoto Yutaka
- NTT Communication Science Laboratories, Nippon Telegraph and Telephone Corporation
-
- Sato Takashi G.
- NTT Communication Science Laboratories, Nippon Telegraph and Telephone Corporation
-
- Shiraki Yoshifumi
- NTT Communication Science Laboratories, Nippon Telegraph and Telephone Corporation
-
- Moriya Takehiro
- NTT Communication Science Laboratories, Nippon Telegraph and Telephone Corporation
Search this article
Abstract
Recent optical wireless acoustic sensors have demonstrated the possibility to simultaneously sense massive numbers of audio channels in real time. Although this technology has enabled the deployment of large-scale applications, it raises new challenges from the computational perspective. In this regard, Graphics Processing Units provide significant parallel computational power. However, not all the existent algorithms are GPU-implementable in a straightforward way. This paper discusses signal processing schemes and implementation strategies to achieve real-time broadband beamforming using a single GPU card. The experiments introduced here, show our prototype implementation handling over 120 audio channels in real time. The experimental results further highlight the particular advantages of using a video camera-based approach to improve the beamforming performance.
Journal
-
- Acoustical Science and Technology
-
Acoustical Science and Technology 36 (6), 489-499, 2015
ACOUSTICAL SOCIETY OF JAPAN
- Tweet
Details 詳細情報について
-
- CRID
- 1390282680065355648
-
- NII Article ID
- 130005106792
-
- NII Book ID
- AA11501808
-
- ISSN
- 13475177
- 03694232
- 13463969
-
- NDL BIB ID
- 026833538
-
- Text Lang
- en
-
- Data Source
-
- JaLC
- NDL
- Crossref
- CiNii Articles
-
- Abstract License Flag
- Disallowed