
Description: Acapela TTS is a text-to-speech (TTS) technology that converts written text into natural sounding speech. It supports over 40 languages and offers life-like voices with adjustable speed and pitch.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: eSpeak NG is an open source software speech synthesizer for English and other languages. It supports over 100 languages and accents and is customizable for voice pitch, speed, and more.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API