A finite element model to improve noise reduction based attenuation measurement of earmuffs in a directional sound field

Keyphrases

• Finite Element Model 100%
• Sound Field 100%
• Attenuation Measurement 100%
• Directional Sound 100%
• Earmuff 100%
• Noise Reduction 100%
• Microphone 44%
• Incidence Angle 33%
• Continuous Fields 33%
• Real-ear Measurement 22%
• Attenuation 22%
• Insertion Loss 22%
• Sound Source 22%
• External Microphone 22%
• Compensation Factor 22%
• Protector 22%
• Sound Pressure Level 22%
• Loss Reduction 11%
• Two-microphone Method 11%
• Exposure Level 11%
• Measurement Method 11%
• Backing Plate 11%
• Right Ear 11%
• Headband 11%
• Octave Band 11%
• Optimal Position 11%
• Noise Insertion 11%
• Lab Measurements 11%
• Coupling Conditions 11%
• Noise Measurement 11%
• Acoustic Test Fixture 11%
• Hearing Protection Devices 11%
• Model Accuracy 11%
• Real Ear 11%

Engineering

• Directional 100%
• Finite Element Modeling 100%
• Sound Field 100%
• Sound Pressure Level 40%
• Insertion Loss 40%
• Incidence Angle 40%
• Sound Source 40%
• Illustrates 20%
• Protection Device 20%
• Octave Band 20%
• Test Fixture 20%
• Angle of Incidence 20%
• Exposure Level 20%
• Backplate 20%

Earth and Planetary Sciences

• Sound Field 100%
• Noise Reduction 100%
• Sound Pressure 25%
• Insertion Loss 25%
• Measurement Method 12%