A 1020-Node Modular Microphone Array and Beamformer for Intelligent Computing Spaces
Ubiquitous computing environments are characterized by an unboundedamount of noise and crosstalk. In these environments, traditionalmethods of sound capture are insufficient, and array microphones areneeded in order to obtain a clean recording of desired speech. In thiswork, we have designed, implem...
| Main Authors: | , , , |
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| Other Authors: | |
| Language: | en_US |
| Published: |
2005
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| Online Access: | http://hdl.handle.net/1721.1/30461 |
| _version_ | 1826201789272162304 |
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| author | Weinstein, Eugene Steele, Kenneth Agarwal, Anant Glass, James |
| author2 | Computer Architecture |
| author_facet | Computer Architecture Weinstein, Eugene Steele, Kenneth Agarwal, Anant Glass, James |
| author_sort | Weinstein, Eugene |
| collection | MIT |
| description | Ubiquitous computing environments are characterized by an unboundedamount of noise and crosstalk. In these environments, traditionalmethods of sound capture are insufficient, and array microphones areneeded in order to obtain a clean recording of desired speech. In thiswork, we have designed, implemented, and tested LOUD, a novel 1020-nodemicrophone array utilizing the Raw tile parallel processorarchitecture for computation. To the best of our knowledge,this is currently the largest microphone array in the world. We haveexplored the uses of the array within ubiquitous computing scenarios byimplementing an acoustic beamforming algorithm for sound sourceamplification in a noisy environment, and have obtained preliminaryresults demonstrating the efficacy of the array. From one to 1020microphones, we have shown a 13.7dB increase in peak SNR on arepresentative utterance, an 87.2% drop in word error rate withinterferer present, and an 89.6% drop in WER without an interferer. |
| first_indexed | 2024-09-23T11:56:56Z |
| id | mit-1721.1/30461 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T11:56:56Z |
| publishDate | 2005 |
| record_format | dspace |
| spelling | mit-1721.1/304612019-04-12T08:37:45Z A 1020-Node Modular Microphone Array and Beamformer for Intelligent Computing Spaces Weinstein, Eugene Steele, Kenneth Agarwal, Anant Glass, James Computer Architecture Ubiquitous computing environments are characterized by an unboundedamount of noise and crosstalk. In these environments, traditionalmethods of sound capture are insufficient, and array microphones areneeded in order to obtain a clean recording of desired speech. In thiswork, we have designed, implemented, and tested LOUD, a novel 1020-nodemicrophone array utilizing the Raw tile parallel processorarchitecture for computation. To the best of our knowledge,this is currently the largest microphone array in the world. We haveexplored the uses of the array within ubiquitous computing scenarios byimplementing an acoustic beamforming algorithm for sound sourceamplification in a noisy environment, and have obtained preliminaryresults demonstrating the efficacy of the array. From one to 1020microphones, we have shown a 13.7dB increase in peak SNR on arepresentative utterance, an 87.2% drop in word error rate withinterferer present, and an 89.6% drop in WER without an interferer. 2005-12-22T01:27:05Z 2005-12-22T01:27:05Z 2004-04-14 MIT-CSAIL-TR-2004-021 MIT-LCS-TM-642 http://hdl.handle.net/1721.1/30461 en_US Massachusetts Institute of Technology Computer Science and Artificial Intelligence Laboratory 18 p. 26946578 bytes 901671 bytes application/postscript application/pdf application/postscript application/pdf |
| spellingShingle | Weinstein, Eugene Steele, Kenneth Agarwal, Anant Glass, James A 1020-Node Modular Microphone Array and Beamformer for Intelligent Computing Spaces |
| title | A 1020-Node Modular Microphone Array and Beamformer for Intelligent Computing Spaces |
| title_full | A 1020-Node Modular Microphone Array and Beamformer for Intelligent Computing Spaces |
| title_fullStr | A 1020-Node Modular Microphone Array and Beamformer for Intelligent Computing Spaces |
| title_full_unstemmed | A 1020-Node Modular Microphone Array and Beamformer for Intelligent Computing Spaces |
| title_short | A 1020-Node Modular Microphone Array and Beamformer for Intelligent Computing Spaces |
| title_sort | 1020 node modular microphone array and beamformer for intelligent computing spaces |
| url | http://hdl.handle.net/1721.1/30461 |
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