Noise Cancellation for Voice Operated Switch (VOX) Communication

Award Information
Agency: Department of Homeland Security
Branch: N/A
Contract: D11PC20002
Agency Tracking Number: 0922012
Amount: $749,989.00
Phase: Phase II
Program: SBIR
Awards Year: 2011
Solicitation Year: 2009
Solicitation Topic Code: H-SB09.2-006
Solicitation Number: FY09.2
Small Business Information
25 B Hanover Road, Suite 140, Florham Park, NJ, 07932-1924
DUNS: 125624432
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: Y
Principal Investigator
 Qi (Peter) Li
 Chief Scientist
 (973) 822-0048
 li@licreativetech.com
Business Contact
 Qi (Peter) Li
Title: President
Phone: (973) 822-0048
Email: li@licreativetech.com
Research Institution
N/A
Abstract
Effective communication between first responders is extremely important not only to accomplishing tasks but also to personal safety. However, because first responders usually work in a high-noise environment, the communication clarity is severely degraded. A variety of solutions to improve the communication efficiency have been tried, but none of them completely solve the problem. The purpose of this project is to present a novel and promising noise attenuation solution for first responder to effectively communicate in high-noise operation environment regardless of the communications mode (through radios in push-to-talk mode, VOX mode and without radios). After careful review the system requirement and several discussions with local firefighters, we designed a complete noise cancellation solution with the following four modules in one device: two new acoustic sensors, audio signal processing module, one loudspeaker and radio interface. The two acoustic sensors replaced traditional microphones and achieved significant improvement in speech signal-to-noise ratio and the speech intelligibility in firefighter communications. Our Phase II deliverables are several prototypes in the product level. They will fully meet the DHS` requirement and significantly benefit first responders` communication. The new device will be ready for large quantity manufacturing by the end of Phase II.

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

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