IVONA Software is a Polish company delivering high-quality Text-to-Speech technology. Since 2014 an Amazon company. IVONA Software partnered with Harpo since the very beginning of the company. Now Harpo is the main distributor of IVONA Windows SAPI5 voice packages for private and commercial use.
IVONA’s lifelike voices use proprietary BrightVoice technology.
Look for Ivona voices here.