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We use Text-to-Speech (TTS) to create the turn instructions. If you don't like the voice you can easily change it. Samsung devices have their own TTS implementation, so you can switch between that and the Google TTS. Go to the Android settings (not the Kurviger settings) →
Language & input (the name might be different with different Android versions) →
Text-to-speech output. Press the cog right to the selected TTS engine, or change the preferred TTS engine if there are multiple TTS engines. You can switch the language of the TTS, and usually there are also different genders available. If your TTS is too silent, you can select
Amplify speech volume.