# Welcome to the Highcharts Maps JS (highmaps) Options Reference

These pages outline the chart configuration options, and the methods and properties of Highcharts objects.

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# plotOptions.pie.sonification.defaultSpeechOptions.preferredVoice

Name of the voice synthesis to prefer for speech tracks.

If not available, falls back to the default voice for the selected language.

Different platforms provide different voices for web speech synthesis.