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They can also be used when new video devices are being tested. Most commercial composite monitors have no audio support or speakers, as the audio system is processed through high-quality audio equipment. Stand-alone composite monitors are commonly used for closed-circuit television and video surveillance.
Audio-to-video synchronization (AV synchronization, also known as lip sync, or by the lack of it: lip-sync error, lip flap) refers to the relative timing of audio (sound) and video (image) parts during creation, post-production (mixing), transmission, reception and play-back processing.
[5]: §7 As with the Y′C B C R video, audio capability is optional. Audio return channel (ARC) is a feature introduced in the HDMI 1.4 standard. [41] "Return" refers to the case where the audio comes from the TV and can be sent "upstream" to the AV receiver using the HDMI cable connected to the AV receiver. [41]
Site for old PC without sound cards. Programming the PC Speaker, by Mark Feldman for PC-GPE. Programming the PC Speaker, by Phil Inch: part 1, part 2 (includes a very detailed explanation of how to play back PCM audio on the PC speaker, and why it works) Bleeper Music Maker A freeware to use the PC speaker to make music (superseded by BaWaMI)
A computer system that controls a device or system, with no or a minimal user interface; for example, the ignition system in a car may have a microprocessor to control it. enameled wire Wire insulated with a thin flexible layer of enamel, used for electrical windings. energy demand management A system to adjust energy demand to reduce costs.
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Audio and video verification techniques use microphones and cameras to record audio frequencies, video signals, or image snapshots. The source audio and video streams are sent over a communication link, usually an Internet protocol (IP) network, to the central station where monitors retrieve the images through proprietary software.
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