6. The system of claim 5 , wherein the hearing assistance processor is configured to derive metadata or parameters for the audio data and determine, for the audio data, a recognition index as an estimation of accuracy using the metadata or the parameters.
5. The system of claim 1 , wherein the hearing assistance processor is configured to determine, for the audio data, a recognition index as an estimation of accuracy and switch to connect to at least one other recognition processor in attempt to improve the recognition index.