What is the role of text-to-speech in Android?

In Android development, TextToSpeech (TTS) is a crucial API used to convert text into speech. It serves the following purposes:

1. The TextToSpeech API allows applications to convert text into speech output, enabling users to hear the text being read aloud.
2. Assistive reading feature: With TextToSpeech, applications can provide assistive reading features for users with visual impairments or reading difficulties, allowing them to access text content through auditory means.
3. Voice prompts and guidance: Applications can utilize TextToSpeech to provide voice prompts, navigation guidance, or operational feedback, thereby enhancing the user experience.
4. Multi-language support: The TextToSpeech API supports various languages and voice engines, allowing developers to provide customized voice services for different regions and user groups.
5. Personalized settings: Users can customize parameters such as voice engine, speed, tone, etc. according to their preferences to achieve a personalized voice synthesis effect.

In conclusion, TextToSpeech plays a crucial role in Android applications, providing users with a richer and more convenient way to interact, while also giving developers more room for creativity.