1## 3.11\. Text-to-Speech 2 3Android includes APIs that allow applications to make use of text-to-speech 4(TTS) services and allows service providers to provide implementations of TTS 5services. 6 7If device implementations reporting the feature android.hardware.audio.output, 8they: 9 10* [C-1-1] MUST support the [Android TTS framework]( 11http://developer.android.com/reference/android/speech/tts/package-summary.html) 12APIs. 13 14If device implementations support installation of third-party TTS engines, they: 15 16* [C-2-1] MUST provide user affordance to allow the user to select a TTS 17 engine for use at system level. 18 19