In 1981 at least one bright UFO was witnessed by several police officers and many civilians in Oregon, USA. The original police radio call was recorded and this rarely discussed UFO incident may hold genuine evidence of the sound of a UFO captured on tape.
This video contains an initial press interview with a police officer recorded later on the same day of the UFO sighting. This video also includes the sound recording of the initial report and analysis of the object as well as an audio recording of the the UFO created while it made noise. The audio recording has been subtitled for easier understanding.