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  2. Closed captioning - Wikipedia

    en.wikipedia.org/wiki/Closed_captioning

    The term closed indicates that the captions are not visible until activated by the viewer, usually via the remote control or menu option. On the other hand, the terms open, burned-in, baked on, hard-coded, or simply hard indicate that the captions are visible to all viewers as they are embedded in the video.

  3. Group delay and phase delay - Wikipedia

    en.wikipedia.org/wiki/Group_delay_and_phase_delay

    The group delay and phase delay properties of a linear time-invariant (LTI) system are functions of frequency, giving the time from when a frequency component of a time varying physical quantity—for example a voltage signal—appears at the LTI system input, to the time when a copy of that same frequency component—perhaps of a different physical phenomenon—appears at the LTI system output.

  4. HDMI - Wikipedia

    en.wikipedia.org/wiki/HDMI

    High-Definition Multimedia Interface (HDMI) is a proprietary audio/video interface for transmitting uncompressed video data and compressed or uncompressed digital audio data from an HDMI-compliant source device, such as a display controller, to a compatible computer monitor, video projector, digital television, or digital audio device. [3]

  5. PAL - Wikipedia

    en.wikipedia.org/wiki/PAL

    Analog television encoding systems by nation: NTSC (green), SECAM (orange), and PAL (blue) Phase Alternating Line (PAL) is a colour encoding system for analog television.It was one of three major analogue colour television standards, the others being NTSC and SECAM.

  6. Text to speech in digital television - Wikipedia

    en.wikipedia.org/wiki/Text_to_speech_in_digital...

    When complete, the plan was submitted to Digital Europe for ETSI standardization and also published as a white paper. Subsequently, the plan was incorporated in the U-Book - UK Digital TV Usability and Accessibility Guidelines including text to speech. [10] In 2010, two talking products for digital television came into the market in the UK.

  7. Coupon-eligible converter box - Wikipedia

    en.wikipedia.org/wiki/Coupon-eligible_converter_box

    A coupon-eligible converter box (CECB) was a digital television adapter that met eligibility specifications for subsidy "coupons" from the United States government.The subsidy program was enacted to provide terrestrial television viewers with an affordable way to continue receiving free digital terrestrial television services after the nation's television service transitioned to digital ...

  8. Live television - Wikipedia

    en.wikipedia.org/wiki/Live_television

    Live television is a television production broadcast in real-time, as events happen, in the present. In a secondary meaning, it may refer to streaming television where all viewers watch the same stream simultaneously, rather than watching video on demand.

  9. Display lag - Wikipedia

    en.wikipedia.org/wiki/Display_lag

    For modern digital signals, significant computer processing power and memory storage is needed to prepare an input signal for display. For either over-the-air or cable TV, the same analog demodulation techniques are used, but after that, then the signal is converted to digital data, which must be decompressed using the MPEG codec, and rendered ...

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