dtmf_payload_type
This parameter may be used to customize the DTMF RTP payload type. Different vendors have used their own DTMF payload types. However, we allow this to be more configurable. Default: 96.
nbest_length
When the recognizer matches an incoming stream with the grammar, it may come up with more than one alternative match because of confidence levels in certain words or conversation paths. If this parameter is not specified, by default, the recognition resource will only return the best match above the confidence threshold. The client, by setting this parameter, could ask the recognition resource to send it more than 1 alternative. All alternatives must still be above the confidence-threshold. A value greater than one does not guarantee that the recognizer will send the requested number of alternatives. The minimum value for this field is 1. The default value for this field is 1
confidence_thrsld
When a recognition resource recognizes an utterance with some portion of the grammar, it associates a confidence level with that conclusion. The confidence-threshold parameter tells the recognizer resource what confidence level should be considered a successful match. This is an integer from 0-100 indicating the recognizer's confidence in the recognition. If the recognizer determines that its confidence in all its recognition results is less than the confidence threshold, then it returns no-match as the recognition result. Default: 20
sensitivity_lvl
Controls the sensitivity level for barge-in; set on a scale of 0 to 100,the higher the value, the more easily the system will barge-in. For a similar value, see snr_sensitivity in our vendor-specific Recognizer Properties. Default: 50.
speed_vs_accuracy
At this time, this parameter is unused.
speech_incomplete_timeout
At this time, this parameter is unused.
no_input_timeout
When recognition is started and there is no speech detected for a certain period of time, the recognizer will send a RECOGNITION-COMPLETE event to the client and terminates the recognition operation. The no-input-timeout parameter can be set to this timeout value. The value is in milliseconds. Default: 20000
dtmf_term_char
This parameter specifies the terminating DTMF character for DTMF input recognition. Default: #
dtmf_termination_timeout
This parameter specifies the terminating timeout to use when recognizing DTMF input. The value is in milliseconds. The value for this field ranges from 0 to MAXTIMEOUT, where MAXTIMEOUT is platform specific. Default: 10000
recognizer_start_timers
The recognizer should not start the timers until the client sends a RECOGNITION-START-TIMERS method to the recognizer. Default: false
recognition_timeout
When recognition is started and there is no match for a certain period of time, the recognizer can send a RECOGNITION-COMPLETE event to the client and terminate the recognition operation. The recognition-timeout parameter field sets this timeout value. The value is in milliseconds. The value for this field ranges from 0 to MAXTIMEOUT, where MAXTIMEOUT is platform specific. Default: 10000
dtmf_inter_digit_timeout
This parameter specifies the inter-digit timeout value to use when recognizing DTMF input. The value is in milliseconds. The value for this field ranges from 0 to MAXTIMEOUT, where MAXTIMEOUT is platform specific. Default: 5000
save_waveform
This parameter allows the client to indicate to the MRCP server to save the audio stream that was recognized. The server then records the audio and makes it available to the client in the form of a URI returned in the waveform-uri header field in the RECOGNITION-COMPLETE event. If there is an error in recording the stream, the recognizer returns a blank waveform-uri header field. Default: false.
waveform_url_location
This parameter is used in conjunction with the save-waveform parameter. This tells the MRCP server where to put the recorded audio-stream. If save_waveform parameter is true. Default: "" (empty string)
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