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  2. Wireless microphone licensing - Wikipedia

    en.wikipedia.org/wiki/Wireless_microphone_licensing

    In the UK, the use of wireless microphone systems requires a Wireless Telegraphy Act license, except for the license-free bands of 173.8–175.0 MHz and 863–865 MHz. These license-free bands are sometimes referred to as "Channel 70" (not to be confused with TV Channel 69, which operated on 854–862 MHz and always required a license from JFMG ...

  3. Audio Video Interleave - Wikipedia

    en.wikipedia.org/wiki/Audio_Video_Interleave

    Audio Video Interleave (also Audio Video Interleaved and known by its initials and filename extension AVI, usually pronounced / ˌ eɪ. v iː ˈ aɪ / [3]) is a proprietary multimedia container format and Windows standard [4] introduced by Microsoft in November 1992 as part of its Video for Windows software.

  4. Wireless microphone - Wikipedia

    en.wikipedia.org/wiki/Wireless_microphone

    A wireless microphone, or cordless microphone, is a microphone without a physical cable connecting it directly to the sound recording or amplifying equipment with which it is associated. Also known as a radio microphone , it has a small, battery-powered radio transmitter in the microphone body, which transmits the audio signal from the ...

  5. Message authentication code - Wikipedia

    en.wikipedia.org/wiki/Message_authentication_code

    The simplest such pairwise independent hash function is defined by the random key, key = (a, b), and the MAC tag for a message m is computed as tag = (am + b) mod p, where p is prime. More generally, k -independent hashing functions provide a secure message authentication code as long as the key is used less than k times for k -ways independent ...

  6. Keygen - Wikipedia

    en.wikipedia.org/wiki/Keygen

    A software license is a legal instrument that governs the usage and distribution of computer software. [1] Often, such licenses are enforced by implementing in the software a product activation or digital rights management (DRM) mechanism, [2] seeking to prevent unauthorized use of the software by issuing a code sequence that must be entered into the application when prompted or stored in its ...

  7. 2.4 GHz radio use - Wikipedia

    en.wikipedia.org/wiki/2.4_GHz_radio_use

    Bluetooth devices intended for use in short-range personal area networks operate from 2.4 to 2.4835 GHz. To reduce interference with other protocols that use the 2.45 GHz band, the Bluetooth protocol divides the band into 80 channels (numbered from 0 to 79, each 1 MHz wide) and changes channels up to 1600 times per second.

  8. Boom operator (media) - Wikipedia

    en.wikipedia.org/wiki/Boom_operator_(media)

    The ideal boom pole is lightweight and strong, supporting the weight of the microphone on the end while adding as little weight as possible. [7] Frequently, a wind-attenuating cover, called a "blimp" or "mic-blimp", is used to enclose the microphone. A blimp covered with sound-absorbing fuzzy fabric is usually nicknamed a windmuff or a "dead cat".

  9. Interleaving - Wikipedia

    en.wikipedia.org/wiki/Interleaving

    Interleaved memory, a technique for improving the speed of access to memory; Interleaving (data), the interspersing of fields or channels of different meaning sequentially; Interleaving (disk storage), a technique for improving the speed of access to blocks on disk storage; Interleaved posting, an e-mail posting style