Superior Speech Acquisition and Robust Automatic Speech Recognition for Integrated Spacesuit Audio Systems

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NNX10CA38C
Agency Tracking Number: 084982
Amount: $599,997.00
Phase: Phase II
Program: SBIR
Awards Year: 2010
Solicitation Year: 2008
Solicitation Topic Code: O3.02
Solicitation Number: N/A
Small Business Information
9 Sylvan Drive, Bridgewater, NJ, 08807-2235
DUNS: 808499748
HUBZone Owned: N
Woman Owned: Y
Socially and Economically Disadvantaged: N
Principal Investigator
 Sherry Ye
 Principal Investigator
 (908) 575-8955
Business Contact
 Sherry Ye
Title: Business Official
Phone: (908) 575-8955
Research Institution
Astronauts suffer from poor dexterity of their hands due to the clumsy spacesuit gloves during Extravehicular Activity (EVA) operations and NASA has had a widely recognized but unmet need for novel human machine interface technologies to facilitate data entry, communications, and robots or intelligent systems control. The objective of this research project is to develop a speech human interface that can offer both crewmember usability and system operational efficiency. But loud noise and strong reverberation inside spacesuits make automatic speech recognition (ASR) for such an interface a very challenging problem. In Phase I, the feasibility of using WeVoice proprietary microphone array signal processing and robust ASR technologies was validated. In particular, it was found that novel multichannel noise reduction produces larger gain in SNR than conventional beamforming but the latter is more preferable as far as ASR is concerned. In addition, it was confirmed that the model adaptation algorithm can make an ASR system more robust inside spacesuits. An arithmetic complexity model for ASR was developed. It can direct the decision as to whether a specified speech interface is sufficiently efficient to be possibly implemented with a wearable system. Phase II will analyze and minimize the scientific and engineering uncertainties identified during Phase I. Furthermore, a voice command interface for future generations of a suit's processing system is proposed to be developed on DSP chips. The system should be ready for testing and use by NASA suited crewmembers at the end of Phase II.

* Information listed above is at the time of submission. *

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