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Mikrophon
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Core Noise Testing Plans for DGEN Aeropropulsion Research Turbofan (DART)
Throat Microphone (Electro-Voice p/N 678-4881) for Helicopter Door Gunners/Crew Chiefs (Aca-23/67)
Determining Transmission Loss from Measured External and Internal Acoustic Environments
Maneuver Acoustic Flight Test of the Bell 430 Helicopter Data Report
Microphone Miniaturization and Improvement Final Technical Report, 22 Jun. - 28 Aug. 1970
Lateral Cutoff Analysis and Results from NASA's Farfield Investigation of No-Boom Thresholds
Mach Cutoff Analysis and Results from NASA's Farfield Investigation of No-Boom Thresholds
Mach Cutoff Analysis and Results from NASA's Farfield Investigation of No-Boom Thresholds
Semi-Empirical Noise Modeling Method for Helicopter Maneuvering Flight Operations
In-Flight Helicopter BVI Noise Measured with Onboard External Microphone
Traversing Microphone Track Installed in NASA Lewis' Aero-Acoustic Propulsion Laboratory Dome
Development of a Heterogeneous sUAS High-Accuracy Positional Flight Data Acquisition System
Helicopter Acoustic Flight Test with Altitude Variation and Maneuvers