Neuroscience

Gaze direction affects sensitivity to sounds

Listening to something while looking in a different direction can slow down reaction times while the brain works harder to suppress distractions, finds a new UCL study.

Neuroscience

Texting proves beneficial in auditory overload situations

During command and control operations, military personnel are frequently exposed to extreme auditory overload – essentially bombarded by multiple messages coming from radio networks, loudspeakers, and live voices in an ...

Health

Fall in polio vaccination refusal cases in Pakistan

Pakistan has witnessed a sharp drop in the number of families refusing to get their children vaccinated against polio, officials said Monday, while lamenting that nearly half a million children were left unvaccinated.

Loudspeaker

A loudspeaker (or "speaker") is an electroacoustic transducer that produces sound in response to an electrical audio signal input. Non-electrical loudspeakers were developed as accessories to telephone systems, but electronic amplification by vacuum tube made loudspeakers more generally useful. The most common form of loudspeaker uses a paper cone supporting a voice coil electromagnet acting on a permanent magnet, but many other types exist. Where accurate reproduction of sound is required, multiple loudspeakers may be used, each reproducing a part of the audible frequency range. Miniature loudspeakers are found in devices such as radio and TV receivers, and many forms of music players. Larger loudspeaker systems are used for music, sound reinforcement in theatres and concerts, and in public address systems.

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