NaturalReader is not available for Linux but there are some alternatives that runs on Linux with similar functionality. The best Linux alternative is eSpeak, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to NaturalReader and ten of them are available for Linux so hopefully you can find a suitable replacement. Other interesting Linux alternatives to NaturalReader are VoiceOverMaker (Free), Intelligent Speaker (Freemium), VoiceoverMaker (Freemium) and Fala (Free, Open Source).
Automatically create natural voice overs for your videos. Create your own voice overs from your text. A natural sounding voice is automatically generated for your videos. You are also able to create only natural sounding voices and export them.
VoiceOvermaker is an online voice generator that helps users create voice-overs for their business , personal use . Users can produce their own audio files with their natural sounding text to speech voices.
Fala - A simple text reader is an open source application. A simple software that speaks a text. You can type the text or appoint a file. Fala is just a frontend to festival. Its designed for GNOME, but if you have gtk, pyhton and festival you are able to run it.
Select and Speak uses iSpeech's human-quality text-to-speech (TTS) to read any selected text in the browser. It includes many iSpeech text to speech voices in different languages. You can configure the voice and speed options by changing the settings on the options page.
The aim of the MBROLA project, initiated by the TCTS Lab of the Faculté Polytechnique de Mons (Belgium), is to obtain a set of speech synthesizers for as many languages as possible, and provide them free for non-commercial applications.