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Soundcore 3 Waterproof Bluetooth Speaker. The Anker Soundcore 3 is the slightly bigger sibling to the popular Soundcore 2.Its outstanding battery life remains at 24 hours (that’s almost 500 ...
Waterproof audio player. Waterproof audio players are devices capable of storing and playing audio media while being in contact with water. One intended use of waterproof audio players is to listen to audio where regular portable audio players cannot be used so as not to risk getting them wet. As advances in technology makes them smaller and ...
The following is a list of defunct microphone manufacturers with articles. Aiwa; Altec Lansing; American Microphone; Ampex; Astatic; Brush Development Company; Dynaco ...
Hydrophone. A hydrophone ( Ancient Greek: ὕδωρ + φωνή, lit. 'water + sound') is a microphone designed to be used underwater for recording or listening to underwater sound. Most hydrophones are based on a piezoelectric transducer that generates an electric potential when subjected to a pressure change, such as a sound wave.
The internal electronic circuitry of an active noise-canceling mic attempts to subtract noise signal from the primary microphone. The circuit may employ passive or active noise canceling techniques to filter out the noise, producing an output signal that has a lower noise floor and a higher signal-to-noise ratio .
Laser microphone. A laser microphone is a surveillance device that uses a laser beam to detect sound vibrations in a distant object. It can be used to eavesdrop with minimal chance of exposure. The object is typically inside a room where a conversation is taking place and can be anything that can vibrate (for example, a picture on a wall) in ...
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