StreamingRecognitionResult(mapping=None, *, ignore_unknown_fields=False, **kwargs)Contains a speech recognition result corresponding to a portion of the audio that is currently being processed or an indication that this is the end of the single requested utterance.
While end-user audio is being processed, Dialogflow sends a series
of results. Each result may contain a transcript value. A
transcript represents a portion of the utterance. While the
recognizer is processing audio, transcript values may be interim
values or finalized values. Once a transcript is finalized, the
is_final value is set to true and processing continues for the
next transcript.
If
StreamingDetectIntentRequest.query_input.audio_config.single_utterance
was true, and the recognizer has completed processing audio, the
message_type value is set to `END_OF_SINGLE_UTTERANCE and the
following (last) result contains the last finalized transcript.
The complete end-user utterance is determined by concatenating the finalized transcript values received for the series of results.
In the following example, single utterance is enabled. In the case where single utterance is not enabled, result 7 would not occur.
::
| Num | transcript | message_type | is_final |
|---|---|---|---|
| 1 | "tube" | TRANSCRIPT | false |
| 2 | "to be a" | TRANSCRIPT | false |
| 3 | "to be" | TRANSCRIPT | false |
| 4 | "to be or not to be" | TRANSCRIPT | true |
| 5 | "that's" | TRANSCRIPT | false |
| 6 | "that is | TRANSCRIPT | false |
| 7 | unset | END_OF_SINGLE_UTTERANCE | unset |
| 8 | " that is the question" | TRANSCRIPT | true |
Concatenating the finalized transcripts with is_final set to
true, the complete utterance becomes "to be or not to be that is the
question".
Attributes | |
|---|---|
| Name | Description |
message_type |
google.cloud.dialogflow_v2beta1.types.StreamingRecognitionResult.MessageType
Type of the result message. |
transcript |
str
Transcript text representing the words that the user spoke. Populated if and only if message_type = TRANSCRIPT.
|
is_final |
bool
If false, the StreamingRecognitionResult represents
an interim result that may change. If true, the
recognizer will not return any further hypotheses about this
piece of the audio. May only be populated for
message_type = TRANSCRIPT.
|
confidence |
float
The Speech confidence between 0.0 and 1.0 for the current portion of audio. A higher number indicates an estimated greater likelihood that the recognized words are correct. The default of 0.0 is a sentinel value indicating that confidence was not set. This field is typically only provided if is_final is
true and you should not rely on it being accurate or even
set.
|
stability |
float
An estimate of the likelihood that the speech recognizer will not change its guess about this interim recognition result: - If the value is unspecified or 0.0, Dialogflow didn't compute the stability. In particular, Dialogflow will only provide stability for TRANSCRIPT results with
is_final = false.
- Otherwise, the value is in (0.0, 1.0] where 0.0 means
completely unstable and 1.0 means completely stable.
|
speech_word_info |
MutableSequence[google.cloud.dialogflow_v2beta1.types.SpeechWordInfo]
Word-specific information for the words recognized by Speech in transcript. Populated if and only if message_type = TRANSCRIPT
and [InputAudioConfig.enable_word_info] is set.
|
speech_end_offset |
google.protobuf.duration_pb2.Duration
Time offset of the end of this Speech recognition result relative to the beginning of the audio. Only populated for message_type = TRANSCRIPT.
|
language_code |
str
Detected language code for the transcript. |
dtmf_digits |
google.cloud.dialogflow_v2beta1.types.TelephonyDtmfEvents
DTMF digits. Populated if and only if message_type =
DTMF_DIGITS.
|
Classes
MessageType
MessageType(value)Type of the response message.
Values:
MESSAGE_TYPE_UNSPECIFIED (0):
Not specified. Should never be used.
TRANSCRIPT (1):
Message contains a (possibly partial)
transcript.
DTMF_DIGITS (3):
Message contains DTMF digits.
END_OF_SINGLE_UTTERANCE (2):
Event indicates that the server has detected the end of the
user's speech utterance and expects no additional speech.
Therefore, the server will not process additional audio
(although it may subsequently return additional results).
The client should stop sending additional audio data,
half-close the gRPC connection, and wait for any additional
results until the server closes the gRPC connection. This
message is only sent if single_utterance was set to
true, and is not used otherwise.
PARTIAL_DTMF_DIGITS (4):
Message contains DTMF digits. Before a message with
DTMF_DIGITS is sent, a message with PARTIAL_DTMF_DIGITS may
be sent with DTMF digits collected up to the time of
sending, which represents an intermediate result.