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19 May 2017, 18:11
You need to select the computer voice "Serena" as she can speak road names
See pages 82/83 of the manual http://download.tomtom.com/open/manuals/start_42_52_62/refman/TomTom-START-EU-RG-en-gb.pdf
Tip: Warning sounds are disabled by default. Warning sounds can be enabled by selecting Settings, followed by Sounds & Warnings, followed by Warning Type and switch on Warning Sounds.