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- Content pages
- About Us - US
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- Warranty - US
- Microphone guide / Externally polarized vs. prepolarized - US
- Microphone guide / Free-field, Pressure or Random incidence - US
- Microphone guide / Dynamic range of a microphone - US
- Technical Papers - US
- Microphone calibration - US
- Accredited Calibration - US
- Traceable Calibration - US
- What kind of Calibration - US
- Terms / Privacy - US
- Legal notice - US
- Company policies - Conformacy
- Ordering - US
- Contact Us - US
- The new 47AC Infrasound microphone set
- Next Generation Headphone Testing
- Demo Campaign - Test with the best!
- Headphone Testing
- New improved pinna - one step closer to the human ear
- TEDS
- HALT quality mark
- Microphone guide
- Microphone guide / Frequency range of a microphone - US
- Powertrain NVH - Automotive Industry
- Electric & Hybrid Vehicle Technology - Automotive Industry
- Vehicle Interior NVH - Automotive Industry
- Wind noise - Automotive Industry
- Buzz, Squeak & Rattle - Automotive Industry
- Pass-by noise testing - Automotive Industry
- Multimedia - Automotive Industry
- Aeroacoustics in windtunnels
- Impulsive noise
- Engine testing
- Sonic Boom
- Audiometer calibration
- Hearing aid testing - Audiology Industry
- KEMAR
- Ear simulators & couplers
- Headphones and Earphones
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- Industries
- Aerospace & defense Industry
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- Education & Research - Industry
- Environmental noise & Monitoring Industry
- High Resolution Ear Simulator
- Automotive Microphone - GRAS
- Automotive Industry
- Brake noise - Automotive Industry
- Engine Noise Testing - Automotive Industry
- Landing page: NVH-solutions
- Road Noise Testing - Automotive Industry
- Exhaust Noise Testing - Automotive Industry
- Automotive Applications site
- GRAS 147EB CCP X-Rugged Microphone Set
- GRAS 147AX CCP Rugged Pressure Microphone
- Brake noise - Automotive Industry
- Road Noise Testing - Automotive Industry
- Exhaust Noise Testing - Automotive Industry
- News area
- News
- Correct test solutions ensure data consistency
- GRAS releases a range of new acoustic sensors for automotive NVH testing
- Strengthened Sales Organization and Management Team in GRAS
- Meze Audio - Achieving reliable test results
- ICSV 25 in Hiroshima Japan
- Automotive Testing Expo in Stuttgart 2018
- Seminar on Acoustic Measurements For Wind Applications
- Automation & Testing Exhibition in Turin, Italy
- GRAS at Dewesoft Conference 2018 in Slovenia
- Danish acoustic solution ensures optimal speech transmission
- Headphone Seminars in Korea & Japan
- GRAS delivers record profits and revenues
- Measure up to 20 kHz!
- Launching the new 146AE
- The world’s smallest measurement microphone set
- ALMA International Symposium & Expo
- The new 42AG Multifunction Sound Calibrator
- Measure beyond the threshold of human hearing
- The new 47AC Infrasound microphone set
- Successful workshop in Italy
- Great interest in Headphone and Headset seminars
- High attendance and knowledge sharing at DAGA in Kiel
- Ed Okorn joins GRAS Sound & Vibration as General Manager, North America
- The popular Headphone & Headset seminar hit Europe last month
- GRAS helps the popular website Head-Fi with audio testing
- The successful seminar on Headphone & Headset Measurements is coming to Europe
- The popular seminars on headphone testing return!
- Other