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SBIR Phase I: Novel Spatial Speech Separation Techniques to Improve Speaker…

Award Information

Agency:
National Science Foundation
Branch:
N/A
Award ID:
88378
Program Year/Program:
2008 / SBIR
Agency Tracking Number:
0810012
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
SIGNAL PROCESSING, INC.
9700 Great Seneca Highway Rockville, MD -
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 2008
Title: SBIR Phase I: Novel Spatial Speech Separation Techniques to Improve Speaker Identification and Speech Recognition
Agency: NSF
Contract: 0810012
Award Amount: $99,999.00
 

Abstract:

This Small Business Innovation Research (SBIR) Phase I research project focuses on a novel approach that uses multiple microphones to spatially separate speech and hence enhance speaker identification and speech recognition accuracy. The first component of the project will apply feature-driven adaptive beam forming to improve speech recognition accuracy in noisy and reverberant environments. Unlike conventional beam forming methods, this proposed method performs weight adaptation based on feedback from the feature extraction and recognition modules. The arrays can eliminate directional interferences and reduce reverberant effects. For the second component of the proposed project, a new continuously-variable mask estimation method will be used to estimate which parts of the separated speech contain speech with good signal-to noise ratio (SNR), applying speech reconstruction to repair these regions. The repaired speech will then be fed into the speech recognition/speaker identification engine. Thirdly, the project will apply ideas motivated by human binaural perception. The potential market for robust speaker identification and speech recognition is projected to be large, ranging from voice dictation in noisy offices, voiceprint verification for financial transactions, biometrics, speech recognition in automated voice response systems, voice-based search for mobile devices, and several others. Additionally there are many military applications in military command, control, and communications segments, where it is important to convey the correct commands to the other recipients.

Principal Investigator:

Chiman Kwan
PhD
3013152322
chiman.kwan@signalpro.net

Business Contact:

Chiman Kwan
PhD
3013152322
chiman.kwan@signalpro.net
Small Business Information at Submission:

Signal Processing, Inc.
13619 Valley Oak Circle Rockville, MD 20850

EIN/Tax ID: 134320631
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No