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Interactive Acoustic Simulation in Urban and Complex Environments

Award Information

Department of Defense
Award ID:
Program Year/Program:
2013 / STTR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
Impulsonic, Inc.
605 W. Main St, Suite 105 Carrboro, NC 27510-1693
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 2
Fiscal Year: 2013
Title: Interactive Acoustic Simulation in Urban and Complex Environments
Agency: DOD
Contract: W911NF-13-C-0037
Award Amount: $374,195.00


Outdoor acoustics simulation plays a vital role in several military and commercial applications, such as minimizing the noise profile of reconnaissance vehicles to avoid counter-detection, optimizing sensors and systems for tactical advantage, pinpointing the origin of gunshots using their acoustic signatures, noise modeling, urban planning, games and VR training. State-of-the-art outdoor acoustics prediction methods are restricted, slow, or limited to simple environments. Specifically, no existing method can simultaneously model atmospheric acoustical phenomena, surface interactions due to complex objects, and dynamic sound sources and listeners. We propose to develop two approaches with complementary strengths for outdoor acoustics simulation, based on multi-domain simulation and pre-computed transfer operators, respectively. Multi-domain simulation combines efficient parabolic equation solvers and/or non-linear ray tracing with accurate wave equation solvers to model long-range atmospheric effects and scattering due to complex obstacles. Transfer operators could enable real-time prediction from moving sources or listeners by pre-computing the scattering behavior of obstacles and the interactions between them. Phase II will involve developing an industry-strength acoustics simulation tool which will be capable of handling large-scale dynamic environments, and exploiting multi-core CPUs and GPUs. We will commercialize these tools for civilian and military markets during Phase II and Phase III.

Principal Investigator:

Dinesh Manocha
(919) 962-1749

Business Contact:

Anish Chandak
(919) 360-3095
Small Business Information at Submission:

Impulsonic, Inc.
605 W. Main St, Suite 105 Carrboro, NC -

EIN/Tax ID: 452526585
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Research Institution Information:
UNC Chapel Hill
Office of Sponsored Research
104 Airport Dr., CB 1350
Chapel Hill, NC 27599-1350
Contact: Barbara E. Ph.D.
Contact Phone: (919) 966-3411