Human Factors Acoustics

Understand crew noise exposure and verify acoustic requirements

LaFontaine Engineering supports crewed spacecraft and habitat programs from early design through verification, with component noise characterization, attenuation and transmission-loss analysis, and assessment against applicable NASA safety, health, performance, and crew-comfort acoustic requirements.

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Inputs we work with

Vehicle operating modes, component noise measurements, material acoustic properties, crew exposure locations, and program requirements.

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Spacecraft internal-noise test development

• Automated test sequences across representative vehicle modes and mission phases

• Microphone selection for frequency content, dynamic range, and environmental constraints

• Microphone placement to capture spatial variability and crew exposure

• Data-acquisition architecture, sampling rates, and signal conditioning

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Component testing and material characterization

Benchtop testing characterizes component and subsystem noise for full-vehicle predictions and design trades. Impedance-tube testing supports measurements of absorption, reflection, and transmission loss.

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Analysis and reporting

Custom processing supports acoustic verification using:

• A-, B-, and C-weighting filters

• Full-octave and one-third-octave bands

• Overall sound pressure level (OASPL)

• Fast and Slow time-weighted levels

• Equivalent continuous sound level (Leq)

• Peak sound pressure level

• Narrowband and tonal FFT analysis

• Reverberation-time estimates

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Discuss your program

Share your vehicle operating scenarios and acoustic verification needs: info@lafontaineengineering.com.