System and method for constraining air traffic communication (ATC) transcription in real-time

A method of implementing automatic speech recognition during runtime of a transcription system, the method comprising:

• determining, by an event detector, one of a number of flight events that comprise flight plan changes and a flight phase transition based on event data received from a set of inputs;
• collating, by an intelligent keyword generator, a set of keywords associated with at least flight plan information for generating a wordlist in accordance with the flight plan changes or the flight phase transition determined by the event detector, wherein the wordlist contains keywords associated with the flight plan changes and the flight phase transition;
• determining, by a processor based on the wordlist from the intelligent keyword generator, whether the wordlist is covered by a current speech model implemented in automatic speech recognition of the transcription system;
• and
• in response to a determination that the wordlist is not covered by the current speech model, selecting, by the processor by communicating with a database storing one or more pre-built speech models, the pre-built speech model that covers the wordlist.

At least one non-transient computer-readable medium having instructions stored thereon that are configurable to cause at least one processor to perform a method for selection of a speech model in automatic speech recognition during runtime of a transcription system, the method comprising:

• determining, by the at least one processor, one of a number of flight events comprising flight plan changes and a flight phase transition based on event data received from a set of inputs;
• collating, by the at least one processor, a set of keywords associated with at least flight plan information for generating a wordlist in accordance with flight plan changes or the flight phase transition determined by the event detector, wherein the wordlist contains keywords associated the flight plan changes and the flight phase transition;
• determining, by the at least one processor based on the wordlist from the intelligent keyword generator, whether the wordlist is covered by a current speech model implemented in the automatic speech recognition of the transcription system;
• and
• in response to a determination that the wordlist is not covered by the current speech model, selecting, by the at least one processor by communication with a database storing one or more pre-built speech models, a pre-built speech model covering the wordlist.