Method for optimizing bird repelling sound source of airport directional sound wave bird repelling device
A technology of directional sound wave bird repelling and optimization method, applied in animal repellent, application, animal husbandry, etc., can solve the problems of large differences in bird species and groups, difficult bird repelling effect, etc., and achieve rich bird repellent sound sources. The effect of resource bank, bird damage is small, and the effect of repelling birds is improved
Pending Publication Date: 2021-12-14
LIAONING UNIVERSITY
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Problems solved by technology
However, the species and groups of threatened birds at airports at home and abroad are very different, and it is difficult to achieve a good bird repelling effect in China
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[0020] A method for optimizing the bird-repelling sound source of an airport directional sound wave bird repellent, comprising the following steps:
[0021] Step 1. Manually record raptor calls and bird warning calls; raptor calls are falcons, hawks, owls, or kites, etc., and birds are magpies, crows, thrushes, or shrikes, etc.
[0022] Step 2, use the sound synthesis software Audacity software to perform frequency modulation on the white noise, and modulate it into noise of 0-10kHz or 10-20kHz;
[0023] Step 3, shorten the syllable interval of the raptor's song by 0.1 second;
[0024] Step 4: On the basis of the set noise, set the raptor's song that shortens the interval of syllables as the left channel, and set the screams of other birds as the right channel, and synthesize a composite superimposed sound sequence even as the bird-repelling sound source.
[0025] In the experiment, the specific setting parameters are shown in Table 1.
[0026] Table 1 Specific parameters o...
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The invention relates to a method for optimizing a bird repelling sound source of an airport directional sound wave bird repelling device. The method comprises the following steps: step 1, manually recording chirp of raptor birds and warning sounds of birds; step 2, performing frequency modulation on white noise by adopting sound synthesis software to modulate the white noise into noise of 0-10 kHz or 10-20 kHz; step 3, shortening the syllable interval duration of the chirp of the raptor birds; and step 4, on the basis of the set noise, setting the chirp of the raptor birds with shortened syllable interval duration as a left sound channel, setting the scream chirp of other birds as a right sound channel, and synthesizing a composite superposed sound sequence couple as a bird repelling sound source. According to the optimization method, sound processing synthesis is carried out on the chirp of the raptor birds and the scream chirp of the birds, and the bird repelling effect can be obviously improved. The method is environmentally friendly, reliable and small in harm to birds; and the capital cost for additionally purchasing new bird repelling equipment is also saved.
Description
technical field [0001] The invention relates to an optimization method of a bird-repelling sound source of an airport directional sound wave bird repellent, and belongs to the technical field of sound processing. Background technique [0002] With the development of the civil aviation transportation industry, flying has become one of the most important ways for people to travel. At the same time, there are more and more challenges. Civil aircraft foreign object (foreign object debris, FOD) damage refers to a type of accident in which some foreign objects, creatures, debris collide with the aircraft or get involved in the aircraft engine, and bird strikes are the number of occurrences of FOD damage The most frequent accident is the threat that the airport department is currently focusing on preventing. Bird strike accidents have been identified as "A" category aviation disaster bird strike accidents by the International Aviation Federation. According to statistics, bird st...
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Login to View More IPC IPC(8): A01M29/16
CPCA01M29/16
Inventor 李东来金麟雨刘艳艳
Owner LIAONING UNIVERSITY