Noise, Vibration, and Harshness (NVH)

Noise measurement

Stories

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NASA Spinoff: Aerospace
NASA’s Noise-Testing Tool Finds Applications Beyond Aircraft
Wireless microphone array quickly, cheaply, accurately maps noise from aircraft and much more.
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Q&A: Physical Sciences
A New Kind of Microphone
Distinguished Professor of Mechanical Engineering Ron Miles and his team at Binghamton University, New York, have developed an entirely new microphone technology based on research into how spiders hear.
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NASA Spinoff: Data Acquisition
Microphone Detects Turbulence Hundreds of Miles Away
A NASA microphone that detects unseen air turbulence is lofted to high heights aboard a stratospheric glider.
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Briefs: Wearables
Smartphone App Hears Ear Infections in Children
The app detects fluid behind the eardrum using a piece of paper and a smartphone’s microphone and speaker.
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Briefs: Test & Measurement
Extreme Low-Frequency Hydrophone
Applications include monitoring of earthquakes and tsunamis as well as manmade infrasonic sources such as boats.
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Briefs: Software
High-Fidelity Sonic Boom Propagation Tool
The sBOOMTraj software tool predicts and mitigates ground noise generated during supersonic flight.
Briefs: Aerospace
Using Aerial Towing to Study Sonic Booms
Researchers at NASA's Armstrong Flight Research Center (AFRC) recently completed a study of the feasibility of aerial towing an unpiloted, sub-scale vehicle to supersonic flight conditions to examine the...
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Briefs: Mechanical & Fluid Systems
Program Computes Sound Pressures at Rocket Launches
Launch Vehicle External Sound Pressure is a computer program that predicts the ignition-overpressure and the acoustic pressure on the surfaces and in the vicinity of a rocket and launch pad during launch. The program generates a graphical user interface (GUI) that gathers input data from the user....
Briefs: Mechanical & Fluid Systems
Wavy-Planform Helicopter Blades Make Less Noise
Wavy-planform rotor blades for helicopters have been investigated for the first time in an effort to reduce noise. Two of the main sources of helicopter noise are blade/vortex interaction (BVI)...
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Briefs: Electronics & Computers
System Processes Data From Wind-Tunnel Acoustic Measurements
A processing system has been developed to meet increasing demands for detailed noise measurement of aircraft in wind tunnels. Phased arrays enable spatial and amplitude measurements...
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Top Stories

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Blog: Energy

Beyond Lithium: The Rise of Calcium-Ion Energy Storage

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Blog: Manufacturing & Prototyping

The Kitchen Tech Hack Aiming to Revolutionize 3D Printing

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Blog: Design

A Shield for the Next Generation: Lithium Batteries Get a Major Upgrade

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Blog: AR/AI

Trailblazing Innovators: Meet Rising Star Award Winner Sadiyah Sabah...

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Quiz: Aerospace

How Much Do You Know About Jet Engine Components?

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INSIDER: Motion Control

These Robots Are Born to Run — And Never Die

Webcasts

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Webinars: Unmanned Systems

Driving Reliability: Simulation Driven EMI Techniques for Modern Vehicle...

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Editorial Webinars: Software

Smarter Aerospace Manufacturing & Design with Digital Twins and Agentic AI

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Webinars: Electronics & Computers

Superior Environmental Protection with Ultra-Thin Parylene and Multilayer...

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Webinars: RF & Microwave Electronics

Where Time and Frequency Converge: Multi-Channel RF Analysis for Radar and...

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Webinars: Mechanical & Fluid Systems

The Over-Engineering Trap: Aligning Custom Equipment Specs with Operational...

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Podcasts: Aerospace

How AI Acceleration Strategies Are Changing Embedded Computing Architectures

Videos