Aircraft Flyover Simulation

Audio and video files associated with the publications below –

Sound Package: A .zip file containing an index and sounds in the paper


Sound Package: A .zip file containing an index and sounds in the paper


Sound Package: A .zip file containing an index and sounds in the paper


Sound Package: A .zip file of all sounds mentioned in the paper (see Appendix A)
Presentation: A .zip file containing a presentation for the paper, with accompanying sounds.  This distribution contains contrived sounds that demonstrate the various aural sensations mentioned in the paper (e.g., roughness)


Audio 1: Original recorded flyover of AS350 helicopter (Figure 2, Black Trace)
Audio 2: Original de-Dopplerized recording of segment 1 of 15 (Figures 6 and 7, Black Trace)
Audio 3: Reconstruction of segment 1 of 15 of de-Dopplerized signal without subtracting harmonics from original data as they are estimated (Figure 6, Blue Trace)
Audio 4: Reconstruction of segment 1 of 15 of de-Dopplerized signal with subtracting harmonics from original data as they are estimated (Figure 7, Blue Trace)
Audio 5: Reconstruction of segment 1 of 15 of de-Dopplerized signal with amplitude modulation model (Figure 14, Orange Trace)
Audio 6: Reconstruction of segment 1 of 15 of de-Dopplerized signal with amplitude modulation model but no phase modulation data (Figure 14, Green Trace)
Audio 7: Auralization of AS350 flyover without phase modulation synthesized from 15 equal angle segments of de-Dopplerized recording (Figure 18, Blue Trace)
Audio 8: Auralization of AS350 flyover without phase modulation synthesized from 30 equal angle segments of de-Dopplerized recording (Figure 21, Blue Trace)
Audio 9: Auralization of AS350 flyover without phase modulation synthesized from 26 equal time segments of de-Dopplerized recording (Figure 23, Blue Trace)


Audio 1: Auralization on ground with phase control (Fig 6b)
Audio 2: Auralization on ground, all props in phase (Fig 6b)
Audio 3: Auralization at 1.2m observer with phase control  (Fig 7)


Use case 1: Receiver simulation and auralization in free space
Use case 2: Receiver simulation in free space, auralization above half space
Use case 3: Receiver simulation on hard ground, auralization above half space


Audio 1: Synthesized source sound from 1/2 deg data
Audio 2: Synthesized source sound from 5 deg data
Audio 3: Synthesized source sound from 10 deg data
Audio 4: Auralized ground observer – baseline case
Audio 5: Auralized ground observer – EPNL optimized
Audio 6: Auralized ground observer – SEL optimized


Audio 1: Recorded flyover
Audio 2: De-Dopplerized signal (segment 2)
Audio 3: Reconstructed signal with modulation
Audio 4: Reconstructed signal without modulation
Audio 5: Reconstructed signal with modeled amplitude modulation
Audio 6: Synthesized source noise for straight and level flyover
Audio 7: Auralized flyover (ground observer)
Audio 8: Auralized flyover (1.2m observer over grass)


Video 1: Multi-Rotor City Scenario
Video 2: Multi-Rotor Park Scenario
Audio 1: Multi-Rotor sound without background
Video 3: Tilt-Wing City Scenario
Video 4: Tilt-Wing Park Scenario
Audio 2: Tilt-Wing sound without background


Video 1: Large twin-aisle reference aircraft on approach (ID 1)
Video 2: HWB301-GTF-ITD reference aircraft on approach (ID 22)
Video 3: Large twin-aisle reference aircraft on sideline (ID 2)
Video 4: HWB301-GTF-ITD reference aircraft on sideline (ID 24)


Audio 1: Recorded quadcopter flyover (Fig 1)
Audio 2: Auralization of basic simulation output (Fig 2)
Audio 3: Auralization with only body drag included (Fig 4)
Audio 4: Auralization with body and rotor drag included (Fig 5)
Audio 5: Auralization with drag effects and turbulence included (Fig 6)
Audio 6: Auralization with drag, turbulence, and “error” included (Fig 7)


Audio 1: Recorded quadcopter flyover in outdoor environment (Fig 1b)
Audio 2: Auralization without RPM modulation (precursor to Fig 8)
Audio 3: Auralization with RPM modulation (precursor to Fig 8)


Audio 1: Synthesized pressure time history (Fig 8)
Audio 2: Propagated signal at  6.4km. Interleaved ground impedance (grass/roadside dirt/old dirt road/new asphalt/rigid/grass/roadside dirt/old dirt road/new asphalt/rigid) (Fig 13)
Audio 3: Propagated signal at 1.6 km. Interleaved ground impedance (grass/roadside dirt/old dirt road/new asphalt/rigid/grass/roadside dirt/old dirt road/new asphalt/rigid) (Fig 13)



Synthesis Validation (Model Scale) (Figs 5-7)
Audio.S1: Sum of separately synthesized broadband and tonal noise
Audio.S2: Measured data for reading 361 at stop 1
Audio.S3: Broadband-only synthesis

Effect of Thrust (Figs 8-12)
Audio.S4: Flyover noise associated with reading 359
Audio.S5: Flyover noise associated with reading 361
Audio.S6: Interleave between Audio.S4 and Audio.S5

Effect of Propulsor Installation (Figs 13-16)<
Audio.S7: Flyover noise associated with reading 470
Audio.S8: Interleave between Audio.S4 and Audio.S7

Effect of  Rotor Inflow Angle (Figs 17-22)
Audio.S9: Flyover noise associated with reading 480
Audio.S10: Flyover noise associated with reading 488
Audio.S11: Interleave between Audio.S7, Audio.S9 and Audio.S10

Effect of Ground Plane Reflections (Figs 23-24)
Audio.S12: Flyover noise associated with reading 361 with ground
Audio.S13: Interleave between Audio.S5 and Audio.S12


SOA Approach Condition (Fig 17a)
Web Clip 1: Pseudo-recording at centerline observer
Web Clip 2: Movie at centerline observer
Web Clip 3: Pseudo-recording at sideline observer (bonus)
Web Clip 4: Movie at sideline observer (bonus)

SOA Sideline Condition (Fig 17b)
Web Clip 5:Pseudo-recording at centerline observer
Web Clip 6: Movie at centerline observer
Web Clip 7:Pseudo-recording at sideline observer (bonus)
Web Clip 8: Movie at sideline observer (bonus)

SOA Cutback Condition (Fig 17c)
Web Clip 9: Pseudo-recording at centerline observer
Web Clip 10: Movie at centerline observer
Web Clip 11: Pseudo-recording at sideline observer (bonus)
Web Clip 12: Movie at sideline observer (bonus)

HWB C11 Approach Condition (Fig 17d)
Web Clip 13: Pseudo-recording at centerline observer
Web Clip 14: >Movie at centerline observer
Web Clip 15: Pseudo-recording at sideline observer (bonus)
Web Clip 16: Movie at sideline observer (bonus)

HWB C11 Sideline Condition (Fig 17e)
Web Clip 17: >Pseudo-recording at centerline observer
Web Clip 18: Movie at centerline observer
Web Clip 19: Pseudo-recording at sideline observer (bonus)
Web Clip 20: Movie at sideline observer (bonus)

HWB C11 Cutback Condition (Fig 17f)
Web Clip 21: Pseudo-recording at centerline observer
Web Clip 22: Movie at centerline observer
Web Clip 23: Pseudo-recording at sideline observer (bonus)
Web Clip 24: Movie at sideline observer (bonus)

Effect of Ground Plane (Fig 18a)
Web Clip 25: HWB C11 sideline condition (centerline observer) without ground plane (compare with web clip 17)

Effect of Distributed Sources (Fig 18b)
Web Clip 26: HWB C11 sideline condition (sideline observer) (compare with web clip 19)

Effect of Low Frequency Oscillations (Fig 18c)
Web Clip 27: HWB C11 sideline condition (sideline observer) (compare with web clip 19)

Combined Effect of Distributed Sources and LFO (Fig 18d)
Web Clip 28: HWB C11 sideline condition (sideline observer) (compare with web clip 19)


Web Clip 1: Compressed AVI movie (Same as ICAD2003)
Web Clip 2: Effect of ground reflection on moving white noise source
Web Clip 3: Recorded jet noise (Same as AIAA-2004-1029)
Web Clip 4: Synthesized jet noise without temporal variations (Same as AIAA-2004-1029)
Web Clip 5: Synthesized jet noise with temporal variations (Same as AIAA-2004-1029)
Web Clip 6: Synthesized jet noise (at source) flying on straight and level trajectory
Web Clip 7: Web Clip 6 as heard by ground observer with spreading loss and binaural simulation
Web Clip 8: Same as Web Clip 7 with atmospheric absorption
Web Clip 9: Same as Web Clip 8 with absolute delay
Web Clip 10: Same as Web Clip 9 with ground reflection
Web Clip 11: Same as Web Clip 10 with synthesized fan tones


Recorded jet noise
Synthesized jet noise without temporal variations
Synthesized jet noise with temporal variations


Uncompressed AVI movie
Compressed AVI movie