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Specific Area Message Encoding (SAME) is a protocol used for framing and classification of broadcasting emergency warning messages. It was developed by the United States National Weather Service for use on its NOAA Weather Radio (NWR) network, and was later adopted by the Federal Communications Commission for the Emergency Alert System, then subsequently by Environment Canada for use on its ...
The SAME header is equally known for its shrillness, which many have found to be startling. The "two-tone" system is no longer required as of 1998, and is to be used only for audio alerts before EAS messages. [59] [full citation needed] Like the EBS, the attention signal is followed by a voice message describing the details of the alert.
FEMA-provided audio file of the SAME alert header, followed by the combined 853 Hz and 960 Hz Warning Alert Tone, followed by the SAME end-of-message (EOM) tone All U.S. and Canadian stations transmit SAME codes a few seconds before the 1,050 Hz attention tone that allows more advanced receivers to respond only for certain warnings that carry a ...
The Common Alerting Protocol (CAP) is an XML-based data format for exchanging public warnings and emergencies between alerting technologies. CAP allows a warning message to be consistently disseminated simultaneously over many warning systems to many applications, such as Google Public Alerts and Cell Broadcast.
Waveform Audio File Format (WAVE, or WAV due to its filename extension; [3] [6] [7] pronounced / w æ v / or / w eɪ v / [8]) is an audio file format standard for storing an audio bitstream on personal computers. The format was developed and published for the first time in 1991 by IBM and Microsoft.
Whenever a weather or civil emergency alert is issued for any part of a Weatheradio Canada station's coverage area, many radios with an alert feature will sound an alarm or turn on upon detection of a 1,050 Hz attention tone that sounds just before the voice portion of an alert message. [10]
WavPack compression can compress (and losslessly restore) 8, 16, 24, and 32-bit fixed-point, and 32-bit floating-point PCM audio files in the .WAV file format. It can also handle DSD input in DSDIFF or DSF format. [2] It also supports surround sound streams and high sampling rates. Like other lossless compression schemes, the data reduction ...
iXML is an open standard for the inclusion of location sound metadata in Broadcast Wave audio files, video files and also IP video and audio streams. This includes things like Scene, Take and Notes information.