text to speech api

reference:
https://stackoverflow.com/questions/7053334/text-to-speech-web-api
https://www.youtube.com/watch?v=ZORXxxP49G8
https://developers.google.com/web/updates/2014/01/Web-apps-that-talk-Introduction-to-the-Speech-Synthesis-API
https://developer.mozilla.org/en-US/docs/Web/API/Window/speechSynthesis
https://github.com/AndrewKeig/react-speech
https://github.com/willianjusten/awesome-audio-visualization

Web Audio API + React & Redux
https://www.linkedin.com/pulse/web-audio-api-react-redux-singing-apps-best-friends-reid-delahunt/
https://stackoverflow.com/questions/21015686/web-audio-api-get-the-output-from-the-soundcard
https://quiet.github.io/quiet-js/
https://subvisual.co/blog/posts/39-tutorial-html-audio-capture-streaming-to-node-js-no-browser-extensions/

paint transparent selection
https://superuser.com/questions/1233441/paste-with-transparent-background-in-paint