svox pico engine is described as 'A backend for gSpeech, also usable in media players. The technology has been purchased by a German company for use in BMW automobiles for text to speech, as well. It is also used for GooglePlay. The open source libraries are still available, however'. There are six alternatives to svox pico engine for a variety of platforms, including Windows, Linux, Mac, Android and Google Chrome. The best alternative is eSpeak, which is both free and Open Source. Other great apps like svox pico engine are Fala (Free, Open Source), ClipBoard Speaker (Freemium), Select and Speak (Paid) and Dicty Lite (Free).
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.
New entry is automatically added w/ text copied from apps. New entry is automatically synthesized / spoken. Keep playing entries in listing when Continuous Play is enabled. Highlight spoken words while text is spoken, when option is enabled. etc.
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.
Say one or more sentences for Dicty to convert to/from text. Can sent text to WhatsApp, SMS or e-mail or copied and used in any other application that accepts text. Speak clearly and you will get an excellent voice recognition.