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.
Example:
transcript: "tube"
transcript: "to be a"
transcript: "to be"
transcript: "to be or not to be" is_final: true
transcript: " that's"
transcript: " that is"
message_type:
END_OF_SINGLE_UTTERANCE
transcript: " that is the question" is_final: true
Only two of the responses contain final results (#4 and #8 indicated by
is_final: true
). Concatenating these generates the full transcript:
"to be or not to be that is the question".
In each response we populate:
for
TRANSCRIPT
:transcript
and possiblyis_final
.for
END_OF_SINGLE_UTTERANCE
: onlymessage_type
.Transcript text representing the words that the user spoke. Populated if and only if
message_type
=TRANSCRIPT
.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.