SpeechKit Recognition API v3, gRPC: AsyncRecognizer.GetRecognition

Статья создана

Обновлена 26 ноября 2024 г.

gRPC request
GetRecognitionRequest
StreamingResponse
SessionUuid
AudioCursors
AlternativeUpdate
Alternative
Word
LanguageEstimation
EouUpdate
FinalRefinement
StatusCode
RecognitionClassifierUpdate
RecognitionClassifierResult
PhraseHighlight
RecognitionClassifierLabel
SpeakerAnalysis
AudioSegmentBoundaries
DescriptiveStatistics
Quantile
ConversationAnalysis
InterruptsEvaluation

gRPC request

rpc GetRecognition (GetRecognitionRequest) returns (stream StreamingResponse)

GetRecognitionRequest

{
  "operation_id": "string"
}

Field	Description
operation_id	string

StreamingResponse

{
  "session_uuid": {
    "uuid": "string",
    "user_request_id": "string"
  },
  "audio_cursors": {
    "received_data_ms": "int64",
    "reset_time_ms": "int64",
    "partial_time_ms": "int64",
    "final_time_ms": "int64",
    "final_index": "int64",
    "eou_time_ms": "int64"
  },
  "response_wall_time_ms": "int64",
  // Includes only one of the fields `partial`, `final`, `eou_update`, `final_refinement`, `status_code`, `classifier_update`, `speaker_analysis`, `conversation_analysis`
  "partial": {
    "alternatives": [
      {
        "words": [
          {
            "text": "string",
            "start_time_ms": "int64",
            "end_time_ms": "int64"
          }
        ],
        "text": "string",
        "start_time_ms": "int64",
        "end_time_ms": "int64",
        "confidence": "double",
        "languages": [
          {
            "language_code": "string",
            "probability": "double"
          }
        ]
      }
    ],
    "channel_tag": "string"
  },
  "final": {
    "alternatives": [
      {
        "words": [
          {
            "text": "string",
            "start_time_ms": "int64",
            "end_time_ms": "int64"
          }
        ],
        "text": "string",
        "start_time_ms": "int64",
        "end_time_ms": "int64",
        "confidence": "double",
        "languages": [
          {
            "language_code": "string",
            "probability": "double"
          }
        ]
      }
    ],
    "channel_tag": "string"
  },
  "eou_update": {
    "time_ms": "int64"
  },
  "final_refinement": {
    "final_index": "int64",
    // Includes only one of the fields `normalized_text`
    "normalized_text": {
      "alternatives": [
        {
          "words": [
            {
              "text": "string",
              "start_time_ms": "int64",
              "end_time_ms": "int64"
            }
          ],
          "text": "string",
          "start_time_ms": "int64",
          "end_time_ms": "int64",
          "confidence": "double",
          "languages": [
            {
              "language_code": "string",
              "probability": "double"
            }
          ]
        }
      ],
      "channel_tag": "string"
    }
    // end of the list of possible fields
  },
  "status_code": {
    "code_type": "CodeType",
    "message": "string"
  },
  "classifier_update": {
    "window_type": "WindowType",
    "start_time_ms": "int64",
    "end_time_ms": "int64",
    "classifier_result": {
      "classifier": "string",
      "highlights": [
        {
          "text": "string",
          "start_time_ms": "int64",
          "end_time_ms": "int64"
        }
      ],
      "labels": [
        {
          "label": "string",
          "confidence": "double"
        }
      ]
    }
  },
  "speaker_analysis": {
    "speaker_tag": "string",
    "window_type": "WindowType",
    "speech_boundaries": {
      "start_time_ms": "int64",
      "end_time_ms": "int64"
    },
    "total_speech_ms": "int64",
    "speech_ratio": "double",
    "total_silence_ms": "int64",
    "silence_ratio": "double",
    "words_count": "int64",
    "letters_count": "int64",
    "words_per_second": {
      "min": "double",
      "max": "double",
      "mean": "double",
      "std": "double",
      "quantiles": [
        {
          "level": "double",
          "value": "double"
        }
      ]
    },
    "letters_per_second": {
      "min": "double",
      "max": "double",
      "mean": "double",
      "std": "double",
      "quantiles": [
        {
          "level": "double",
          "value": "double"
        }
      ]
    },
    "words_per_utterance": {
      "min": "double",
      "max": "double",
      "mean": "double",
      "std": "double",
      "quantiles": [
        {
          "level": "double",
          "value": "double"
        }
      ]
    },
    "letters_per_utterance": {
      "min": "double",
      "max": "double",
      "mean": "double",
      "std": "double",
      "quantiles": [
        {
          "level": "double",
          "value": "double"
        }
      ]
    },
    "utterance_count": "int64",
    "utterance_duration_estimation": {
      "min": "double",
      "max": "double",
      "mean": "double",
      "std": "double",
      "quantiles": [
        {
          "level": "double",
          "value": "double"
        }
      ]
    }
  },
  "conversation_analysis": {
    "conversation_boundaries": {
      "start_time_ms": "int64",
      "end_time_ms": "int64"
    },
    "total_simultaneous_silence_duration_ms": "int64",
    "total_simultaneous_silence_ratio": "double",
    "simultaneous_silence_duration_estimation": {
      "min": "double",
      "max": "double",
      "mean": "double",
      "std": "double",
      "quantiles": [
        {
          "level": "double",
          "value": "double"
        }
      ]
    },
    "total_simultaneous_speech_duration_ms": "int64",
    "total_simultaneous_speech_ratio": "double",
    "simultaneous_speech_duration_estimation": {
      "min": "double",
      "max": "double",
      "mean": "double",
      "std": "double",
      "quantiles": [
        {
          "level": "double",
          "value": "double"
        }
      ]
    },
    "speaker_interrupts": [
      {
        "speaker_tag": "string",
        "interrupts_count": "int64",
        "interrupts_duration_ms": "int64",
        "interrupts": [
          {
            "start_time_ms": "int64",
            "end_time_ms": "int64"
          }
        ]
      }
    ],
    "total_speech_duration_ms": "int64",
    "total_speech_ratio": "double"
  },
  // end of the list of possible fields
  "channel_tag": "string"
}

Responses from server.
Each response contains session uuid
AudioCursors
plus specific event

Field	Description
session_uuid	SessionUuid Session identifier
audio_cursors	AudioCursors Progress bar for stream session recognition: how many data we obtained; final and partial times; etc.
response_wall_time_ms	int64 Wall clock on server side. This is time when server wrote results to stream
partial	AlternativeUpdate Partial results, server will send them regularly after enough audio data was received from user. This are current text estimation from final_time_ms to partial_time_ms. Could change after new data will arrive. Includes only one of the fields `partial`, `final`, `eou_update`, `final_refinement`, `status_code`, `classifier_update`, `speaker_analysis`, `conversation_analysis`.
final	AlternativeUpdate Final results, the recognition is now fixed until final_time_ms. For now, final is sent only if the EOU event was triggered. This could be change in future releases. Includes only one of the fields `partial`, `final`, `eou_update`, `final_refinement`, `status_code`, `classifier_update`, `speaker_analysis`, `conversation_analysis`.
eou_update	EouUpdate After EOU classifier, send the message with final, send the EouUpdate with time of EOU before eou_update we send final with the same time. there could be several finals before eou update. Includes only one of the fields `partial`, `final`, `eou_update`, `final_refinement`, `status_code`, `classifier_update`, `speaker_analysis`, `conversation_analysis`.
final_refinement	FinalRefinement For each final, if normalization is enabled, sent the normalized text (or some other advanced post-processing). Final normalization will introduce additional latency. Includes only one of the fields `partial`, `final`, `eou_update`, `final_refinement`, `status_code`, `classifier_update`, `speaker_analysis`, `conversation_analysis`.
status_code	StatusCode Status messages, send by server with fixed interval (keep-alive). Includes only one of the fields `partial`, `final`, `eou_update`, `final_refinement`, `status_code`, `classifier_update`, `speaker_analysis`, `conversation_analysis`.
classifier_update	RecognitionClassifierUpdate Result of the triggered classifier Includes only one of the fields `partial`, `final`, `eou_update`, `final_refinement`, `status_code`, `classifier_update`, `speaker_analysis`, `conversation_analysis`.
speaker_analysis	SpeakerAnalysis Speech statistics for every speaker Includes only one of the fields `partial`, `final`, `eou_update`, `final_refinement`, `status_code`, `classifier_update`, `speaker_analysis`, `conversation_analysis`.
conversation_analysis	ConversationAnalysis Conversation statistics Includes only one of the fields `partial`, `final`, `eou_update`, `final_refinement`, `status_code`, `classifier_update`, `speaker_analysis`, `conversation_analysis`.
channel_tag	string Tag for distinguish audio channels.

SessionUuid

Session identifier.

Field

Description

uuid

string

Internal session identifier.

user_request_id

string

User session identifier.

AudioCursors

AudioCursors are state of ASR recognition stream.

Field	Description
received_data_ms	int64 Amount of audio chunks server received. This cursor is moved after each audio chunk was received by server.
reset_time_ms	int64 Input stream reset data.
partial_time_ms	int64 How much audio was processed. This time includes trimming silences as well. This cursor is moved after server received enough data to update recognition results (includes silence as well).
final_time_ms	int64 Time of last final. This cursor is moved when server decides that recognition from start of audio until final_time_ms will not change anymore usually this even is followed by EOU detection (but this could change in future).
final_index	int64 This is index of last final server send. Incremented after each new final.
eou_time_ms	int64 Estimated time of EOU. Cursor is updated after each new EOU is sent. For external classifier this equals to received_data_ms at the moment EOU event arrives. For internal classifier this is estimation of time. The time is not exact and has the same guarantees as word timings.

AlternativeUpdate

Update of hypothesis.

Field

Description

alternatives[]

Alternative

List of hypothesis for timeframes.

channel_tag

string

Alternative

Recognition of specific time frame.

Field	Description
words[]	Word Words in time frame.
text	string Text in time frame.
start_time_ms	int64 Start of time frame.
end_time_ms	int64 End of time frame.
confidence	double The hypothesis confidence. Currently is not used.
languages[]	LanguageEstimation Distribution over possible languages.

Word

Recognized word.

Field	Description
text	string Word text.
start_time_ms	int64 Estimation of word start time in ms.
end_time_ms	int64 Estimation of word end time in ms.

LanguageEstimation

Estimation of language and its probability.

Field

Description

language_code

string

Language code in ISO 639-1 format.

probability

double

Estimation of language probability.

EouUpdate

Update information for external End of Utterance.

Field

Description

time_ms

int64

EOU estimated time.

FinalRefinement

Refinement for final hypo. For example, text normalization is refinement.

Field

Description

final_index

int64

Index of final for which server sends additional information.

normalized_text

AlternativeUpdate

Normalized text instead of raw one.

Includes only one of the fields normalized_text.

Type of refinement.

StatusCode

Status message

Field

Description

code_type

enum CodeType

Code type.

CODE_TYPE_UNSPECIFIED
WORKING: All good.
WARNING: For example, if speech is sent not in real time or context is unknown and we've made fallback.
CLOSED: After session was closed.

message

string

Human readable message.

RecognitionClassifierUpdate

Field	Description
window_type	enum WindowType Response window type `WINDOW_TYPE_UNSPECIFIED` `LAST_UTTERANCE`: The result of applying the classifier to the last utterance response `LAST_FINAL`: The result of applying the classifier to the last final response `LAST_PARTIAL`: The result of applying the classifier to the last partial response
start_time_ms	int64 Start time of the audio segment used for classification
end_time_ms	int64 End time of the audio segment used for classification
classifier_result	RecognitionClassifierResult Result for dictionary-based classifier

RecognitionClassifierResult

Field	Description
classifier	string Name of the triggered classifier
highlights[]	PhraseHighlight List of highlights, i.e. parts of phrase that determine the result of the classification
labels[]	RecognitionClassifierLabel Classifier predictions

PhraseHighlight

Field	Description
text	string Text transcription of the highlighted audio segment
start_time_ms	int64 Start time of the highlighted audio segment
end_time_ms	int64 End time of the highlighted audio segment

RecognitionClassifierLabel

Field

Description

label

string

The label of the class predicted by the classifier

confidence

double

The prediction confidence

SpeakerAnalysis

Field	Description
speaker_tag	string Speaker tag
window_type	enum WindowType Response window type `WINDOW_TYPE_UNSPECIFIED` `TOTAL`: Stats for all received audio. `LAST_UTTERANCE`: Stats for last utterance.
speech_boundaries	AudioSegmentBoundaries Audio segment boundaries
total_speech_ms	int64 Total speech duration
speech_ratio	double Speech ratio within audio segment
total_silence_ms	int64 Total silence duration
silence_ratio	double Silence ratio within audio segment
words_count	int64 Number of words in recognized speech
letters_count	int64 Number of letters in recognized speech
words_per_second	DescriptiveStatistics Descriptive statistics for words per second distribution
letters_per_second	DescriptiveStatistics Descriptive statistics for letters per second distribution
words_per_utterance	DescriptiveStatistics Descriptive statistics for words per utterance distribution
letters_per_utterance	DescriptiveStatistics Descriptive statistics for letters per utterance distribution
utterance_count	int64 Number of utterances
utterance_duration_estimation	DescriptiveStatistics Descriptive statistics for utterance duration distribution

AudioSegmentBoundaries

Field

Description

start_time_ms

int64

Audio segment start time

end_time_ms

int64

Audio segment end time

DescriptiveStatistics

Field	Description
min	double Minimum observed value
max	double Maximum observed value
mean	double Estimated mean of distribution
std	double Estimated standard deviation of distribution
quantiles[]	Quantile List of evaluated quantiles

Quantile

Field

Description

level

double

Quantile level in range (0, 1)

value

double

Quantile value

ConversationAnalysis

Field	Description
conversation_boundaries	AudioSegmentBoundaries Audio segment boundaries
total_simultaneous_silence_duration_ms	int64 Total simultaneous silence duration
total_simultaneous_silence_ratio	double Simultaneous silence ratio within audio segment
simultaneous_silence_duration_estimation	DescriptiveStatistics Descriptive statistics for simultaneous silence duration distribution
total_simultaneous_speech_duration_ms	int64 Total simultaneous speech duration
total_simultaneous_speech_ratio	double Simultaneous speech ratio within audio segment
simultaneous_speech_duration_estimation	DescriptiveStatistics Descriptive statistics for simultaneous speech duration distribution
speaker_interrupts[]	InterruptsEvaluation Interrupts description for every speaker
total_speech_duration_ms	int64 Total speech duration, including both simultaneous and separate speech
total_speech_ratio	double Total speech ratio within audio segment

InterruptsEvaluation

Field	Description
speaker_tag	string Speaker tag
interrupts_count	int64 Number of interrupts made by the speaker
interrupts_duration_ms	int64 Total duration of all interrupts
interrupts[]	AudioSegmentBoundaries Boundaries for every interrupt

SpeechKit Recognition API v3, gRPC: AsyncRecognizer.GetRecognition

gRPC request

GetRecognitionRequest

StreamingResponse

SessionUuid

AudioCursors

AlternativeUpdate

Alternative

Word

LanguageEstimation

EouUpdate

FinalRefinement

StatusCode

RecognitionClassifierUpdate

RecognitionClassifierResult

PhraseHighlight

RecognitionClassifierLabel

SpeakerAnalysis

AudioSegmentBoundaries

DescriptiveStatistics

Quantile

ConversationAnalysis

InterruptsEvaluation

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