Array 24 Garage Door
- Length: 0:30
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- View Count: 118
- Author: OptiNav
Tags: "Acoustic "Array "garage "phased 24" array" automobile aviation Beamforming door" Location" noise OptiNav Source space
How clunky can a garage door be? A-weighted levels.
Jet Noise at SHJAR seen by Array 48
- Length: 0:11
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- View Count: 130
- Author: OptiNav
Tags: "Array "jet "phased 24" acoustics array" Beamforming NASA noise" OptiNav
Broadband shock-associated noise from a 2-inch cold, supersonic underexpanded jet. NASA-Glenn RC SHJAR facility, May 2008. Array 48. A screech tone at 2807 Hz (and a harmonic at 5624 Hz) can be heard, but the beamforming frequency range of 22993-45968 Hz illustrates the broadband source...
Airplane noise visualization. Rev. B
- Length: 0:14
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- View Count: 337
- Author: OptiNav
Tags: "Acoustic "Array "phased 24" array" aviation Beamforming Location" OptiNav Source space
The sound from a jet taking off chases it across the sky. Made with Array 24 near SEATAC airport. Revised Sept. 16 2008 to add levels and choose a grayscale color map. A-weighted, band limited to 1789-22361 Hz. The focusing distance of 100 m is effectively infinity for this array.
High frequency Honda noise. Rev. A
- Length: 0:36
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- View Count: 300
- Author: OptiNav
Tags: "Acoustic "Array "phased 24" array" automobile aviation Beamforming Location" noise OptiNav Source space
A Honda Civic Hybrid performs a very low speed maneuver and has its higher frequency noise sources documented by Array 24. Revised Sept. 15 2008 to correct levels. (Flat weighted dB Re. 20 micro Pa. over the band of 4113-22993 Hz)
Speech visualization by Array 24
- Length: 0:28
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- View Count: 81
- Author: OptiNav
Tags: "Acoustic "Array "phased 24" array" aviation Beamforming Location" OptiNav Source space
A-weighted, band-limited, beamforming on a Sunday afternoon. Revised Sept. 16. 2008 to correct levels.
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