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  2. Closed captioning - Wikipedia

    en.wikipedia.org/wiki/Closed_captioning

    The responsibility of decoding the CC information and overlaying onto the visible video image has been taken away from the TV display and put into the "source" of DVI and HDMI digital video interconnects. Because the TV handles "mute" and, when using DVI and HDMI, a different device handles turning on and off CC, this means the "captions come ...

  3. Media control symbols - Wikipedia

    en.wikipedia.org/wiki/Media_control_symbols

    To identify the control or the indicator to play the next part and then stop. Record: U+23FA ⏺ #5547 Recording, general: To identify a control to preset or start a recording mode. Eject U+23CF ⏏ #5459 Eject: To identify the control for the eject function. Shuffle U+1F500 🔀 — To randomly play a song from a given list.

  4. Squelch - Wikipedia

    en.wikipedia.org/wiki/Squelch

    It functions strictly on the signal strength, such as when a television mutes the audio or blanks the video on "empty" channels, or when a walkie-talkie mutes the audio when no signal is present. Carrier squelch uses receiver Automatic gain control (AGC) to determine the squelch threshold. Single-sideband modulation (SSB) typically uses carrier ...

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  6. Volume control - Wikipedia

    en.wikipedia.org/wiki/Volume_control

    Volume control can refer to: Volume controlled continuous mandatory ventilation; Potentiometer, a feature on audio equipment for adjusting the sound level

  7. Headphones - Wikipedia

    en.wikipedia.org/wiki/Headphones

    Headphone cord with integrated potentiometer for volume control As active component, wireless headphones tend to be costlier due to the necessity for internal hardware such as a battery, a charging controller, a speaker driver , and a wireless transceiver , whereas wired headphones are a passive component, outsourcing speaker driving to the ...

  8. ThinkPad X series - Wikipedia

    en.wikipedia.org/wiki/ThinkPad_X_series

    In some models the keyboard is significantly changed: The extra buttons for mute, volume up, and volume down are moved under Fn+Fxx keys. The shape of the keys and the distance between keys are changed (Chiclet or Island-style keyboard). There is a global trend that the keys are getting more flat, and the way of movement is getting shorter.

  9. Mute (music) - Wikipedia

    en.wikipedia.org/wiki/Mute_(music)

    The type of mute and when to add and remove is specified in text above the music; open is often used in music for brass to indicate the subsequent passage should be played without a mute. [5] In classical music, the phrase con sordino or con sordini (Italian: with mute, abbreviated con sord.