The A-weighted OASPL measurements at the driver's station indicated that the MTVE was quieter than the M113A2 at low to moderate operating speeds (20
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[PDF] Contributions of Different Aeroacoustic Sources to Aircraft - CORE
OASPL A-weighted overall sound/surface pressure level [dB(A)] SPL A- weighted 1/3-octave band sound pressure level [dB(A)] TAS True air speed [m/s] TBL
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45 50 55 60 (b) A-weighted Tonal OASPL Fig 8 Tonal OASPLs of experimental measurements for different rotor tip clearances (Cases: Ω = 5400 RPM, BPF
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OASPL, scaled-A-weighted (frequency shifted for a quarter-scale model), and band-pass BVISPL metrics (containing the acoustic energy from the 7th to 50th
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manipulations of the weighted acceleration levels include the application of 40,000 Hz, and that the overall sound pressure level (OASPL) be below 150 dB
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The A-weighted OASPL measurements at the driver's station indicated that the MTVE was quieter than the M113A2 at low to moderate operating speeds (20
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weighting correction was applied to the SPL spectrogram to account for the The A-weighted OASPL measured inside the anechoic chamber with all the
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Figure 4 6: A-weighting correction curve [2] The A-weighted power spectrum SPL (A) can be used to calculate the A-weighted overall sound pressure level OASPL(
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10 déc 2020 · the cut-off frequency To understand the human perception of sound levels measured by instruments, A-weighted OASPL is used in an effort to
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