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Mysterious sounds recorded in Cuba Embassy were crickets …

closeVideo: Mysterious sounds recorded in Cuba Embassy were crickets

A new report reveals that the mysterious sounds recorded in Cuba Embassy in 2016 were the crickets.

By the end of 2016, dozens of staffers at the U.S. Embassy in Cuba became sick allegedly after hearing the mysterious sounds in their hotels or homes. Then they reported severe physical symptoms, such as dizziness, headaches, ear pain and even cognitive problems and loss of hearing.

The researchers obtained a recording of the sounds collected by the embassy employees in Cuba, and the analysis of the acoustic signal revealed striking similarities of insect calls. Further investigation identified the sounds as the call of the Indies short-tailed cricket (Anurogryllus celerinictus). [Flying Saucers to Mind Control: 22 Declassified Military and CIA Secrets]

The findings, which have not yet been peer-reviewed, were presented at the annual meeting of the society of Integrative and Comparative Biology in San Francisco, and were published online Jan. 4 in the preprint journal BioRXiv.

In the months after the alleged attacks have occurred, some of the embassy staff reported symptoms so debilitating that they were recalled from their posts in Havana, and returned to the U.S. for medical evaluation. American officials initially claimed that a secret sonic weapon is to blame, and Cuban diplomats were expelled from the U.S. in retaliation, Live Science reported in August 2017. (Other theories, such as microwave weapons, were also proposed.)

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In the new study, researchers looked at a picture of the possible offending sound, a “humming” at a frequency of 7 kHz, or 7,000 cycles per second, captured by the embassy of employees and released by the Associated Press. The researchers discovered that the buzz in the recording closely resembled the singing of the Indies short-tailed cricket, “in duration, the pulse repetition rate,” and in other aspects of the sound pulses, they are mentioned in the study.

But there was one important difference. Impulses in the AP recording were irregular, while the field-recordings of wild crickets captured more uniform trills. An explanation could be that the Cuban recording was recorded, where the sound could rebound from ceilings, floors and walls to create a complex echo choir in an irregular rhythm, according to the study.

To test that hypothesis, the researchers played recorded cricket calls through a speaker inside and included in the results. They found that when the echoes were added, such as the sound ricocheted between flat surfaces, the wrist structure of the images match the one on the AP-recognition of Cuba.

“This gives strong evidence that an echo of the cricket call, instead of a sonic attack, or other technological device, is responsible for the sound on the released recording,” the researchers wrote. (The analysis explains only what is there in this recording, something that may or may not be related to the symptoms reported by the embassy of employees and others.)

The new study is not the first to suggest that there is no “sonic weapon” at the embassy of the employees have any unusual symptoms. In February 2018, researchers documented the range of ailments suffered by 21 persons who were employed in the AMERICAN Embassy and reportedly ill in 2016 and 2017. They concluded that the symptoms just do not match with those likely to be caused by weaponized sound waves, Live Science reported earlier.

The findings suggest that experts need to look more closely at what may be the cause of these symptoms, “as well as possible physiological explanations apart from sonic attacks,” the scientists wrote in the research.

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Original article on Live Science.

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