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  2. Ten-code - Wikipedia

    en.wikipedia.org/wiki/Ten-code

    Ten-codes, officially known as ten signals, are brevity codes used to represent common phrases in voice communication, particularly by US public safety officials and in citizens band (CB) radio transmissions. The police version of ten-codes is officially known as the APCO Project 14 Aural Brevity Code.[ 1]

  3. Police code - Wikipedia

    en.wikipedia.org/wiki/Police_code

    Police code. A police code is a brevity code, usually numerical or alphanumerical, used to transmit information between law enforcement over police radio systems in the United States. Examples of police codes include "10 codes" (such as 10-4 for "okay" or "acknowledged"—sometimes written X4 or X-4), signals, incident codes, response codes, or ...

  4. Comparison of audio coding formats - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_audio_coding...

    5.100 (2016-09-02) Free OptimFROG and some media players (decoding only). Some media players (decoding only) Music archival Yes No Yes No No Opus: Xiph.Org Foundation, Internet Engineering Task Force: 2012-09-11 RFC 6716 (libopus 1.5.1) Free libopus, FFmpeg Speech, VoIP, Low latency, Studio/transmitter link, wireless audio, voice recording ...

  5. Audio codec - Wikipedia

    en.wikipedia.org/wiki/Audio_codec

    In hardware, audio codec refers to a single device that encodes analog audio as digital signals and decodes digital back into analog. In other words, it contains both an analog-to-digital converter (ADC) and digital-to-analog converter (DAC) running off the same clock signal. This is used in sound cards that support both audio in and out, for ...

  6. Timeline of audio formats - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_audio_formats

    Timeline of audio formats. An audio format is a medium for sound recording and reproduction. The term is applied to both the physical recording media and the recording formats of the audio content —in computer science it is often limited to the audio file format, but its wider use usually refers to the physical method used to store the data.

  7. List of codecs - Wikipedia

    en.wikipedia.org/wiki/List_of_codecs

    BroadVoice Speech Codec Open Source C Code. IETF RFCs: Internet Low Bit Rate Codec (iLBC, RFC 3951) – developed by Global IP Solutions /Google. WebRTC. IETF Internet Draft. SILK (used by Skype) [ 20] CELT (developed by Xiph.Org Foundation) [ 21] libcelt.

  8. United States National Radio Quiet Zone - Wikipedia

    en.wikipedia.org/wiki/United_States_National...

    United States National Radio Quiet Zone. Coordinates: 38.375°N 79.5°W. The NRQZ includes portions of West Virginia, Virginia, and a small part of Maryland. The National Radio Quiet Zone ( NRQZ) is a large area of land in the United States designated as a radio quiet zone, in which radio transmissions are restricted by law to facilitate ...

  9. AOL Mail

    mail.aol.com

    You can find instant answers on our AOL Mail help page. Should you need additional assistance we have experts available around the clock at 800-730-2563.