描述：Air horn created by layering druidus' http://www.freesound.org/people/druidus/sounds/22370/ and pitching it up. Edited with Audacity. This is not a public domain sound This sound requires attribution If you want to use this sound but can not give attribution, please contact me. You are required to give attribution in the form of: Copyright 2013 Iwan Gabovitch, CCBY3 license.http://farm9.staticflickr.com/8070/8213683889_517a10ef52_o.pngOn FLAC and OGG Vorbis audio file formats. Contact me if you have interest in specific sounds for open source or commercial purpose.