Static ReadonlyFINAL_Recognizer is not acquiring incoming audio any more, it is computing the final result. Recognizer is not likely to be in this state for a long time; approximately 100-300ms, depending on the device and the CPU speed.
Static ReadonlyLISTENINGRecognizer is actively listening. Any calls to startListening will be ignored.
Static ReadonlyNEEDS_Recognizer is initialized but it needs decoding graph before it can start listening.
Static ReadonlyREADY_Recognizer is ready to start listening.
These constants indicate different states recognizer can assume.