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  2. Audio-to-video synchronization - Wikipedia

    en.wikipedia.org/wiki/Audio-to-video_synchronization

    Presentation time stamps (PTS) are embedded in MPEG transport streams to precisely signal when each audio and video segment is to be presented and avoid AV-sync errors. . However, these timestamps are often added after the video undergoes frame synchronization, format conversion and preprocessing, and thus the lip sync errors created by these operations will not be corrected by the addition ...

  3. Booting - Wikipedia

    en.wikipedia.org/wiki/Booting

    The most notable systems with such a design are cell phones, modems, audio and video players and so on, where a DSP and a CPU/microcontroller are co-existing. Many FPGA chips load their configuration from an external serial EEPROM ("configuration ROM") on power-up.

  4. Advanced Video Coding - Wikipedia

    en.wikipedia.org/wiki/Advanced_Video_Coding

    A YouTube video statistics with AVC (H.264) video codec and Opus audio format In 2009, the HTML5 working group was split between supporters of Ogg Theora , a free video format which is thought to be unencumbered by patents, and H.264, which contains patented technology.

  5. Media control symbols - Wikipedia

    en.wikipedia.org/wiki/Media_control_symbols

    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. Usually the song is not chosen out of true randomness but rather following specific rules to prevent a song from repeating too often. Repeat ...

  6. YouTube - Wikipedia

    en.wikipedia.org/wiki/YouTube

    In some countries, YouTube is blocked for more limited periods of time such as during periods of unrest, the run-up to an election, or in response to upcoming political anniversaries. In cases where the entire site is banned due to one particular video, YouTube will often agree to remove or limit access to that video in order to restore service.

  7. Latency (audio) - Wikipedia

    en.wikipedia.org/wiki/Latency_(audio)

    Latency refers to a short period of delay (usually measured in milliseconds) between when an audio signal enters a system, and when it emerges.Potential contributors to latency in an audio system include analog-to-digital conversion, buffering, digital signal processing, transmission time, digital-to-analog conversion, and the speed of sound in the transmission medium.

  8. Video quality - Wikipedia

    en.wikipedia.org/wiki/Video_quality

    Video quality is a characteristic of a video passed through a video transmission or processing system that describes perceived video degradation (typically compared to the original video). Video processing systems may introduce some amount of distortion or artifacts in the video signal that negatively impact the user's perception of the system.

  9. Glossary of video terms - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_video_terms

    See also, the Motion topic for video quality requirements considerations. [3] Motion Picture Expert Group (MPEG) A group of standards for encoding and compressing audiovisual information such as movies, video, and music. MPEG compression is as high as 200:1 for low-motion video of VHS quality, and broadcast quality can be achieved at 6 Mbit/s.