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Awards

Topic Information Award/Contract Number Proposal Information Company Performance
Period
Award/Contract
Value
Abstract

H-SB09.2-006
Noise Cancellation for Voice Operated Switch (VOX) Communications

N10PC20021 0921112
(FY09.2 Phase I)
Noise Cancellation for Voice Operated Switch (VOX) Communications

Li Creative Technologies, Inc.
25 B Hanover Road, Suite 140
Florham Park, NJ 07932-1924

11/01/2009
to
05/15/2010
$99,946.66

The purpose of this proposal is to present a novel and promising noise attenuation solution for the first responders 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). For different application scenarios, we propose two possible solutions to handheld and hands-free applications, respectively. The proposed noise cancellation solution is based on our experiences in previous research and similar product design. Our research will be focused on improving signal-to-noisy ratio (SNR) for high-noise environments and extending the battery life. At the end of Phase I, all algorithms will be implemented and tested in an existing hardware platform. Also, preliminary hardware designs will be finished and all major chips for the device will be selected in Phase I.

H-SB09.2-006
Noise Cancellation for Voice Operated Switch (VOX) Communications

D11PC20002 0922012
(FY09.2 Phase II)
Noise Cancellation for Voice Operated Switch (VOX) Communication

Li Creative Technologies, Inc.
25 B Hanover Road, Suite 140
Florham Park, NJ 07932-1924

11/01/2010
to
03/31/2013
$749,989.00

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.