EAS Generation

Generate an EAS alert using EASjs

const { generateEASAlert } = require('@globaleas/easjs');

const header = 'ZCZC-CIV-ADR-020173+0100-3441707-ERN/LB-';
generateEASAlert(header)

Without any changes to the configuration, it will output the generated alert in the current working directory as output.wav

Generate an EAS alert with a custom configuration

// Import the MODES object for configuration
const { generateEASAlert, MODES } = require('@globaleas/easjs');

const header = 'ZCZC-CIV-ADR-020173+0100-3441707-ERN/LB-';
generateEASAlert(header, {
    audioPath: 'alert-audio.mp3',
    outputFile: 'final-alert.wav',
    format: 'wav',
    mode: MODES.DIGITAL
})

This will output the generated alert as final-alert.wav in the current working directory.

Custom Parameters for Generation

audioPath - The path to the audio file to use for the alert audio message.
- EASjs currently supports mp3 and wav files
outputFile - The name of the output file
format - The format of the output file (wav or mp3)
mode - The mode of the alert:
- MODES.DEFAULT - Style similar to a Digital Alert Systems DASDEC
- MODES.DIGITAL - Style similar to a SAGE Digital ENDEC
- MODES.TRILITHIC - Style similar to Trilithic EASy ENDECs
- MODES.NWS - Similar to MODES.DEFAULT but with a 1050 Hz attention tone

Last modified: 09 July 2025