About Nuance conversational AI recognizer

Nuance Recognizer understands and interprets spoken and touchtone input to help deliver seamless self-service. The underlying recognition engine is grammar-based, which means it requires grammars to interpret a caller’s utterance.

Constrained grammar recognition engines are especially useful for:

  • Recognizing alphanumeric inputs such as account numbers and tracking numbers.
  • Small scoped applications that are designed for interactions with a small set of words and phrases to recognize.
  • Directed dialog to assist in navigating a menu tree of items, either used for the first interaction of a caller, or as the basis of the system’s conversational design.

The gRPC protocol allows a client application to request speech recognition in all the programming languages supported by gRPC.

gRPC is an open source RPC (remote procedure call) software used to create services. It uses HTTP/2 for transport and Protocol Buffers version 3 (“proto3”) to define the structure of the application.