Photo Release -- Exa Announces PowerACOUSTICS 3.0 With Complete Vehicle Interior Noise Analysis and Enhanced Acoustics

Photo Release -- Exa Announces PowerACOUSTICS 3.0 With Complete Vehicle
Interior Noise Analysis and Enhanced Acoustics Visualization

BURLINGTON, Mass., Sept. 12, 2013 (GLOBE NEWSWIRE) -- Exa^® Corporation
(Nasdaq:EXA), a global innovator of fluids simulation solutions for product
engineering, announced the release of the newest version of its noise analysis
simulation software solution, PowerACOUSTICS^® 3.0. This latest release allows
users to predict noise transmission into the cabin from the underbody flow,
which is an important source of wind noise in the low-mid frequency range.
Users can now also add in any other noise contributions such as from road,
tire, or engine sources, giving PowerACOUSTICS the ability to synthesize total
noise in the interior. This release also features new acoustic visualization
capabilities that provide enhanced visibility and understanding of the
acoustic field, enabling even better insight to the sources of
aerodynamically-induced noise.

Wavenumber Filter
 Visualization of acoustics on an
 automotive side glass and the turbulent
 flow that generates it using Exa
 PowerFLOW fluid simulation &
 PowerACOUSTICS acoustic analysis
 products. Side glass shows new Acoustic
 Wavenumber Filter (AWF) visualization
 technique that enables engineers to
 more easily identify wind noise sources
 and opportunities for noise reduction.

A photo accompanying this release is available at

With recent advances in the reduction of engine and tire noise, and with ever
more vehicle electrification, wind noise is an increasing component of the
total noise in the interior. Exa provides a complete, integrated, solution for
prediction of noise levels and identification and reduction of wind noise
sources. PowerFLOW's inherently transient fluid simulation provides accurate
prediction of the turbulent and acoustic wind noise sources. PowerACOUSTICS
predicts transmission of those sources to the cabin interior or propagation to
the far field, and the ability to simulate the effects of different
sound-reduction packages, such as use of laminated glass or damping materials.

"Quiet vehicles are what consumers demand and manufacturers strive for,"
remarked Robert Powell, Director of Structural Acoustics for Exa and
chairperson of the SAE 2013 Noise & Vibration Conference. "Quietness equates
to quality for the consumer. I'm thrilled that we can now accurately
synthesize the total noise experienced by the occupants. This latest
PowerACOUSTICS release further extends Exa's leadership in aeroacoustic

PowerACOUSTICS 3.0 highlights include:

  *Predict Total Wind Noise Contribution

  PowerACOUSTICS' Noise Transmission Module (NTM) now provides the option to
  include floor panels in the structural acoustics model of the vehicle,
  enabling complete prediction of the underbody wind noise contribution to the
  overall noise heard at driver and passenger head locations.

  *Complete Vehicle Interior Noise, or Complete Far-Field Noise, Including
    all Sources

  In addition to directly predicting the total Wind Noise contribution at a
  microphone location, other contributions can now be directly included in
  order to easily plot and evaluate total SPL spectra and contribution by

  *Advanced Capabilities for Flow-Induced Acoustic Visualization

  Two new acoustics visualization features, 'wavenumber filtering' and time
  derivative calculations of pressure, provide enhanced visibility of the
  acoustic field, making it easier to assess and improve design related to the
  generation of acoustics.

About Exa Corporation

Exa Corporation develops, sells and supports simulation software and services
to enhance product performance, reduce product development costs and improve
the efficiency of design and engineering processes. Our simulation solutions
enable our customers to gain crucial insights about design performance early
in the design cycle, thus reducing the likelihood of expensive redesigns and
late-stage engineering changes. As a result, our customers realize significant
cost savings and fundamental improvements in their engineering development
process. Our products include, PowerFLOW^®, PowerDELTA^®, PowerCLAY^®,
PowerVIZ^®, PowerSPECTRUM^®, PowerACOUSTICS^®, PowerINSIGHT^®, PowerCOOL^® and
PowerTHERM^® along with professional engineering consulting services. A
partial customer list includes: AGCO, BMW, Ford, Hyundai, Jaguar Land Rover,
Kenworth, MAN, Nissan, Peterbilt, Renault, Scania, Toyota, Volkswagen, and
Volvo Trucks.

Founded in 1991, the company is headquartered at 55 Network Drive, Burlington,
MA, USA 01803. Tel: 1.781.564.0200; Fax: 1.781.564.0299; Email:;

PowerINSIGHT, PowerCOOL, PowerTHERM and PowerACOUSTICS are registered
trademarks of Exa Corporation

CONTACT: For more information about Exa Corporation
         or images please contact:
         Michelle Murray-Ross, Exa Corporation,

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