asr_step

The recognition step.

Synopsis:

#include <asr/types.h>

typedef enum asr_step_e{
      ASR_STEP_LOCALE_CHANGED   
      ASR_STEP_SESSION_OPENED   
      ASR_STEP_SESSION_ERROR   
      ASR_STEP_SESSION_CANCELED   
      ASR_STEP_PROMPT_STARTING   
      ASR_STEP_PROMPT_STOPPED   
      ASR_STEP_RECOGNITION_BEGIN   
      ASR_STEP_RECOGNITION_CONFIGURED   
      ASR_STEP_PRE_AUDIO_CAPTURE   
      ASR_STEP_PRE_SPEECH_SILENCE_TIMEOUT   
      ASR_STEP_POST_AUDIO_CAPTURE   
      ASR_STEP_LOCAL_QUERY_BEGIN   
      ASR_STEP_REMOTE_QUERY_BEGIN   
      ASR_STEP_QUERY_END   
      ASR_STEP_POSTING_RESULT   
      ASR_STEP_REPOSTING_RESULT   
      ASR_STEP_RECOGNIZED_SPEECH   
      ASR_STEP_UNRECOGNIZED_SPEECH   
      ASR_STEP_UNHANDLED_SPEECH   
      ASR_STEP_RECOGNIZED_SILENCE   
      ASR_STEP_TURN_COMPLETE   
      ASR_STEP_RECOGNITION_END   
      ASR_STEP_RECOGNITION_HELD   
      ASR_STEP_SESSION_CLOSED   
      ASR_STEP_SESSION_CLEANUP   
      ASR_STEP_TASK_COMPLETE   
      ASR_STEP_SESSION_ABORTED   
} asr_step_t;

Data:

ASR_STEP_LOCALE_CHANGED: The locale has changed and localized assets have been updated.

ASR_STEP_SESSION_OPENED: A speech session has been opened.

ASR_STEP_SESSION_ERROR: An unrecoverable error has occurred.; This step is be followed by ASR_STEP_SESSION_CLOSED.

ASR_STEP_SESSION_CANCELED: The user cancelled the recognition session.

ASR_STEP_PROMPT_STARTING: An audio prompt service has been requested.; The ASR state is prompting.

ASR_STEP_PROMPT_STOPPED: An audio prompt service has completed.; The ASR state is processing.

ASR_STEP_RECOGNITION_BEGIN: A recognition turn has started.

ASR_STEP_RECOGNITION_CONFIGURED: The recognition contexts, data, and configuration have been loaded.

ASR_STEP_PRE_AUDIO_CAPTURE: Audio capture is about to start (microphone will be turned on).; The ASR state is listening.

ASR_STEP_PRE_SPEECH_SILENCE_TIMEOUT: No speech was detected within the silence timeout period.

ASR_STEP_POST_AUDIO_CAPTURE: The microphone has been turned off (either end of speech was detected or asra_stop() was called).; The ASR state is processing.

ASR_STEP_LOCAL_QUERY_BEGIN: The local ASR service has started processing the captured audio.

ASR_STEP_REMOTE_QUERY_BEGIN: A remote ASR service has started processing the captured audio (expect latency).

ASR_STEP_QUERY_END: The ASR service has returned results.

ASR_STEP_POSTING_RESULT: The recognition result has been generated and is about to be delivered.

ASR_STEP_REPOSTING_RESULT: The recognition result was selected by the wrong module.

ASR_STEP_RECOGNIZED_SPEECH: The module has processed the results.

ASR_STEP_UNRECOGNIZED_SPEECH: The ASR service didn't recognize any speech in the utterance.

ASR_STEP_UNHANDLED_SPEECH: No module selected any of the recognition results.

ASR_STEP_RECOGNIZED_SILENCE: There was no audio captured or the audio was too quiet.

ASR_STEP_TURN_COMPLETE: Result processing is complete.

ASR_STEP_RECOGNITION_END: All module select and result callbacks have completed.

ASR_STEP_RECOGNITION_HELD: The current speech session has been held, to be ended or resumed later.

ASR_STEP_SESSION_CLOSED: The speech session has ended.

ASR_STEP_SESSION_CLEANUP: ASR is cleaning up the speech session.; The ASR state is idle.

ASR_STEP_TASK_COMPLETE: The user's task has been accomplished (e.g., media playback has begun, phone call has been placed, etc.)

ASR_STEP_SESSION_ABORTED: There was an external cancellation of the recognition session (asr_stop() was called due to a PPS strobe::off message.)

Library:

libasr

Description:

This enumeration represents the steps in the recognition process flow. Some of these steps change the state of ASR, as recorded in the state attribute of the /pps/services/asr/control PPS object. This state change is noted with the enumeration values where applicable.