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  2. Wireless microphone - Wikipedia

    en.wikipedia.org/wiki/Wireless_microphone

    Singer Cody Simpson using a wireless microphone headset in a 2013 concert in Montreal. A wireless microphone, or cordless microphone, is a microphone without a physical cable connecting it directly to the sound recording or amplifying equipment with which it is associated. Also known as a radio microphone, it has a small, battery-powered radio ...

  3. MIPRO - Wikipedia

    en.wikipedia.org/wiki/MIPRO

    MIPRO was established in 1995 by founder K.C. Chang, who had in 1970 designed the first FM wireless microphone in Taiwan and obtained the first patent for a condenser microphone capsule in Taiwan. In 2001 MIPRO introduced a technology they termed ACT (Automatic Channel Targeting).

  4. Antenna diversity - Wikipedia

    en.wikipedia.org/wiki/Antenna_diversity

    A wireless microphone with a non-diversity receiver (a receiver having only one antenna) is prone to random drop-outs, fades, noise, or other interference, especially if the transmitter (the wireless microphone) is in motion. A wireless microphone or sound system using diversity reception will switch to the other antenna within microseconds if ...

  5. The Thing (listening device) - Wikipedia

    en.wikipedia.org/wiki/The_Thing_(listening_device)

    The Thing (listening device) The Thing, also known as the Great Seal bug, was one of the first covert listening devices (or "bugs") to use passive techniques to transmit an audio signal. It was concealed inside a gift given by the Soviet Union to W. Averell Harriman, the United States Ambassador to the Soviet Union, on August 4, 1945.

  6. Squelch - Wikipedia

    en.wikipedia.org/wiki/Squelch

    Look up squelch in Wiktionary, the free dictionary. In telecommunications, squelch is a circuit function that acts to suppress the audio (or video) output of a receiver in the absence of a strong input signal. [1] Essentially, squelch is a specialized type of noise gate designed to suppress weak signals.

  7. Electro-Voice - Wikipedia

    en.wikipedia.org/wiki/Electro-Voice

    Electro-Voice (EV) is an American manufacturer of audio equipment, including microphones, amplifiers, and loudspeakers, focused on pro audio applications such as sound reinforcement and commercial and residential audiovisual installations. As a subdivision of Bosch Communications Systems Inc. since 2006, Electro-Voice markets products for use ...

  8. Surround sound - Wikipedia

    en.wikipedia.org/wiki/Surround_sound

    Surround sound. Surround sound is a technique for enriching the fidelity and depth of sound reproduction by using multiple audio channels from speakers that surround the listener (surround channels). Its first application was in movie theaters. Prior to surround sound, theater sound systems commonly had three screen channels of sound that ...

  9. Lavalier microphone - Wikipedia

    en.wikipedia.org/wiki/Lavalier_microphone

    Lavalier microphone. A lavalier microphone or lavalier (also known as a lav, lapel mic, clip mic, body mic, collar mic, neck mic or personal mic) is a small microphone used for television, theater, and public speaking applications to allow hands-free operation. They are most commonly provided with small clips for attaching to collars, ties, or ...