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A megaphone, speaking trumpet, bullhorn, blowhorn, or loudhailer is usually a portable or hand-held, cone-shaped acoustic horn used to amplify a person's voice or other sounds and direct it in a given direction. The sound is introduced into the narrow end of the megaphone, by holding it up to the face and speaking into it, and the sound waves ...
The article states that the TOA EM-202 was the world's first transistorised microphone, but the current history pages on the TOA website (possibly changed since the article was written as the reference link no longer works properly) suggest that, while it was the first electric megaphone produced, the company did not produce a transistorised ...
Template:Done/See also – Inline icon templates by shape and color – a more compact presentation of essentially the same list of templates; Wikipedia:Template index/Talk namespace – a broader set of templates, including large banners, etc. {} – used for servicing requests in edit-protected areas
Steve Parker uses sculpture, sound, and performance to create communal, democratic works that examine history and behavior. [5] Futurist Listening, at the CUE Art Foundation curated by Marcela Guerrero, featured sonic headwear, acoustic sculptures built from brass instruments, and graphic scores that utilized World War II tactics like jamming signals, coded messages, and warning sirens ...
While donning a Brazilian flag, tied around the neck, Junior Almeida, a 17-year-old from Natick, chanted “Free, free Palestine” through a megaphone.
Richard Frankland (with megaphone) at the Thousand Warrior march passing Occupy Melbourne in Treasury Gardens, 5 November 2011. Richard Joseph Frankland is an Australian playwright, scriptwriter and musician. He is an Aboriginal Australian of Gunditjmara origin from Victoria. He has worked significantly for Aboriginal Australian causes.
A contact microphone is a form of microphone that senses audio vibrations through contact with solid objects. [1] Unlike normal air microphones, contact microphones are almost completely insensitive to air vibrations but transduce only structure-borne sound.