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  2. Surround sound - Wikipedia

    en.wikipedia.org/wiki/Surround_sound

    The 3-1 channel setup (consisting of one monophonic surround channel) is such a case, where both LS and RS are fed by the monophonic signal at an attenuated level of -3 dB. [ 25 ] The function of the center channel is to anchor the signal so that any central panned images do not shift when a listener is moving or is sitting away from the sweet ...

  3. Channel capacity - Wikipedia

    en.wikipedia.org/wiki/Channel_capacity

    The channel capacity is defined as ... For memoryless channels, Shannon showed [13] that feedback does not increase the capacity, ...

  4. Digital subchannel - Wikipedia

    en.wikipedia.org/wiki/Digital_subchannel

    The FCC, in October 2020, concluded from WWFD's experiments: "the record does not establish that an audio stream on an HD-2 subchannel is currently technically feasible(.)" [18] A proposed FCC rule would require stations that wish to multiplex their digital AM signals to request and receive permission to do so. [18]

  5. 7.1 surround sound - Wikipedia

    en.wikipedia.org/wiki/7.1_surround_sound

    [1] [2] In addition, with the advent of Dolby Pro Logic IIz and DTS Neo:X, 7.1 surround sound can also refer to 7.1 surround sound configurations with the addition of two front height channels (LH and RH) positioned above the front channels or two front wide channels positioned between the front and surround channels.

  6. DisplayPort - Wikipedia

    en.wikipedia.org/wiki/DisplayPort

    The DisplayPort AUX channel is a half-duplex (bidirectional) data channel used for miscellaneous additional data beyond video and audio, such as EDID (I 2 C) or CEC commands. [8]: §2.4 This bidirectional data channel is required, since the video lane signals are unidirectional from source to display. AUX signals are transmitted across a ...

  7. HDMI - Wikipedia

    en.wikipedia.org/wiki/HDMI

    Previous HDMI versions use three data channels (each operating at up to 6.0 Gbit/s in HDMI 2.0, or up to 3.4 Gbit/s in HDMI 1.4), with an additional channel for the TMDS clock signal, which runs at a fraction of the data channel speed (one tenth the speed, or up to 340 MHz, for signaling rates up to 3.4 Gbit/s; one fortieth the speed, or up to ...

  8. robots.txt - Wikipedia

    en.wikipedia.org/wiki/Robots.txt

    The internet was small enough in 1994 to maintain a complete list of all bots; server overload was a primary concern. By June 1994 it had become a de facto standard ; [ 6 ] most complied, including those operated by search engines such as WebCrawler , Lycos , and AltaVista .

  9. Average human height by country - Wikipedia

    en.wikipedia.org/wiki/Average_human_height_by...

    Different social groups can show different mean height. According to a study in France, executives and professionals are 2.6 centimetres (1.0 in) taller, and university students are 2.55 centimetres (1.0 in) taller than the national average. [ 7 ]