TextToSpeech UE4 plugin

Text-to-speech synthesis for Unreal Engine 4.21 via Windows SAPI. Based on https://github.com/indomitusgames/TextToSpeech-UE4 (major bugfixes/improvements).

How to use it

• Checkout the code into your project's "Plugins" directory. It may be necessary to create it under the project root.
• Check the plugin is active in Unreal Engine 4 editor.
• The plugin exposes a new Blueprint node, "TextToWave", which output SoundWave. Just use some kind of standard "Play Sound" node to play it.

TextToWave parameters:

• VoiceRequiredAttributes / String - required voice attributes - used to search most relevant voice (see https://stackoverflow.com/questions/21220156/how-to-set-voice-sapi5);
• VoiceOptionalAttributes / String - optional voice attributes;
• Rate / Int - speech speed (-10...10);
• Text / String - text to render into wave.