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A long-range acoustic device (LRAD), acoustic hailing device (AHD) or sound cannon is a specialized loudspeaker that produces sound at high power for communicating at a distance. It has been used as a method of crowd control , which has caused permanent hearing damage , having an extremely high decibel capacity (up to 160 dB measured at one ...
The Mosquito or Mosquito alarm is a machine used to deter loitering by emitting sound at high frequency. In some versions, it is intentionally tuned to be heard primarily by younger people. Nicknamed "Mosquito" for the buzzing sound it plays, the device is marketed as a safety and security tool for preventing youths from congregating in ...
The episode follows Phil, Claire and the kids trying to improve their communication skills by giving up their electronic devices. Gloria is getting obsessed over a neighbor's barking dog while Mitchell and Cameron try to find a preschool for Lily. "Unplugged" received a mix of critical acclaim and negative reviews.
A siren is a loud noise-making device. There are two general types: mechanical and electronic. There are two general types: mechanical and electronic. Civil defense sirens are mounted in fixed locations and used to warn of natural disasters or attacks.
The devices have also been employed to keep marine mammals away from fishing nets. [2] The devices are known as acoustic harassment devices (AHDs) and acoustic deterrent devices, which are smaller AHDs [3] or intended as an awareness tool to warn species to the presence of danger rather than as a tool of harassment at a much louder level. [4]
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The videos primarily consist of the character speaking to the audience about what is happening in his life. Fred has a high-pitched voice and is hyperactive, achieved by speeding up the footage. [2] Cruikshank has described the channel as "programming for kids by kids" [1] as a parody of people who "think that everyone is so interested in them ...
The nightcore music has been compared to happy hardcore and bubblegum bass because of its fast tempos, energetic feel, and high-pitched vocals. [ 7 ] [ 8 ] [ 9 ] Nightcore made five albums of sped-up versions of trance recordings, including its 2002 thirteen-track debut album Energized and the group's later albums Summer Edition 2002 , L'hiver ...