Nuance Recognizer is an enterprise-grade automatic speech recognition (ASR) engine for IVR and voice-driven applications. It converts spoken input to text in real time, enabling barge-in, robust performance in noisy telephony environments, and confidence scoring for precise call handling. The engine integrates via MRCPv2 with leading VoiceXML/IVR platforms, supports SRGS/GRXML grammars for directed dialogs, and can be paired with natural language understanding components for open-ended requests. Designed for high availability and horizontal scalability, it includes comprehensive logging and tuning tools to improve accuracy over time and supports multiple languages. Typical uses include call steering, self-service transactions, authentication prompts, and hands-free information access, deployed on-premises or as part of a broader speech suite with text-to-speech.
Nuance Recognizer is developed by Nuance Communications, Inc.. The most popular version of this product among our users is 9.0.
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