Kurzweil VOICE 2.0 for Windows Kurzweil VOICE is based on the industry's only speech recognition technology that combines five critical elements: recognition, accuracy, speaker independence, speaker adaptability, the integration of discrete and continuous recognition, and a very large vocabulary capability. The latest version of this large vocabulary, award-winning voice recognition system allows you to develop an easy and natural approach to personal computing. Kurzweil VOICE is easy to install, learn and use. The product is "speaker-independent" - no training on the user's voice is required, so it can be used immediately.