Sunday, February 28, 2010

Airliner Crash

Airliner Crash MPEG 4.80 mb, Airliner Crash 512Kb MPEG4 2.12 mb, Airliner Crash Ogg Video 1.88 mb which is a free, open standard container format maintained by the Xiph.Org Foundation. The OGG format is unrestricted by software patents and is designed to provide for efficient streaming and manipulation of high quality digital multimedia. . animated gif, 7 frames

NASA Dryden Flight Research Center. Controlled Impact Demonstration (CID) flight video montage. Movie Number: EM-0004-02. Movie Date: 01 Dec 1984.

Description: The Controlled Impact Demonstration (CID) was a joint research project by NASA and the FAA to test a survivable aircraft impact using a remotely piloted Boeing 720 aircraft.


The tail camera movie is one shot running 27 seconds. It shows the impact from the perspective of a camera mounted high on the vertical stabilizer, looking forward over the fuselage and wings.

Keywords: Controlled Impact Demonstration; CID; Boeing 720; Edwards Air Force Base; Rogers Dry Lake; Dryden Flight Research Facility; NASA; FAA; anti-misting kerosene; AMK; impact survivability; Fitzhugh (Fitz) Fulton

Airliner CrashNASA Copyright Notification: NASA still images; audio files; video; and computer files used in the rendition of 3-dimensional models, such as texture maps and polygon data in any format, are not protected by copyright unless noted. If not copyrighted, they may be reproduced and distributed without further permission from NASA.
NASA makes every attempt to use media on our web pages (e.g., graphics, artwork, sounds. video), that is free for use or in the public domain.

Generally speaking, works created by U.S. Government employees are not eligible for copyright protection in the United States. See Circular 1 "COPYRIGHT BASICS" PDF from the U.S. Copyright Office.

If the NASA material is to be used for commercial purposes, especially including advertisements, it must not explicitly or implicitly convey NASA's endorsement of commercial goods or services.

Credit is requested by NASA. Where a photographer is noted, please credit the photographer and his/her affiliated organization as well.

This movie is part of the collection: Open Source Movies

Producer: NASA
Audio/Visual: silent
Keywords: Airliner Crash; Boeing; NASA
Creative Commons license: Public Domain

Sunday, February 21, 2010

Gray noise

Gray noise VBR MP3 133 kb, Gray noise OGG format 158 kb which is a free, open standard container format maintained by the Xiph.Org Foundation. The OGG format is unrestricted by software patents and is designed to provide for efficient streaming and manipulation of high quality digital multimedia.

An attempt at 10 seconds of inverse A-weighted "gray noise". Generated by Adobe Audition, by plugging in values from the weighting filter equations in the FFT filter. Normalized to −1 dB.

Possibly not mathematically perfect due to Audition or encoding. Source: Created by User: Omegatron using Adobe Audition.



This sound file is ineligible for copyright and therefore in the public domain, because it consists entirely of information that is common property and contains no original authorship.

Gray noise Spectrum analysisImage Summary: Spectrum analysis of uncompressed source for 10 seconds of gray noise file. Note the logarithmic frequency scale.

The analysis was done using Audacity, and plotting with gnuplot. Transparency was touched up in GIMP to make the graph background pure white.
Image Licensing: I Omegatron, the copyright holder of this work, hereby release it into the public domain. This applies worldwide.

In case this is not legally possible: I Omegatron grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

This audio is part of the collection: Open Source Audio
Artist/Composer: Omegatron
Keywords: Gray noise
Creative Commons license: Public Domain