public sealed class SpeechRecognitionAlternative : IMessage<SpeechRecognitionAlternative>, IEquatable<SpeechRecognitionAlternative>, IDeepCloneable<SpeechRecognitionAlternative>, IBufferMessage, IMessage
Reference documentation and code samples for the Cloud Speech-to-Text v2 API class SpeechRecognitionAlternative.
The confidence estimate between 0.0 and 1.0. A higher number
indicates an estimated greater likelihood that the recognized words are
correct. This field is set only for the top alternative of a non-streaming
result or, of a streaming result where
[is_final][google.cloud.speech.v2.StreamingRecognitionResult.is_final] is
set to true. This field is not guaranteed to be accurate and users should
not rely on it to be always provided. The default of 0.0 is a sentinel
value indicating confidence was not set.
A list of word-specific information for each recognized word.
When the
[SpeakerDiarizationConfig][google.cloud.speech.v2.SpeakerDiarizationConfig]
is set, you will see all the words from the beginning of the audio.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-07 UTC."],[[["\u003cp\u003eThe \u003ccode\u003eSpeechRecognitionAlternative\u003c/code\u003e class, part of the Cloud Speech-to-Text v2 API, provides alternative hypotheses from speech recognition results, also known as an n-best list.\u003c/p\u003e\n"],["\u003cp\u003eThis class includes properties for \u003ccode\u003eConfidence\u003c/code\u003e, which estimates the likelihood of the recognized words being correct, and \u003ccode\u003eTranscript\u003c/code\u003e, which contains the text representing the spoken words.\u003c/p\u003e\n"],["\u003cp\u003eIt also includes the property \u003ccode\u003eWords\u003c/code\u003e, which contains a list of word-specific information, particularly when \u003ccode\u003eSpeakerDiarizationConfig\u003c/code\u003e is enabled.\u003c/p\u003e\n"],["\u003cp\u003eThe class implements multiple interfaces such as \u003ccode\u003eIMessage\u003c/code\u003e, \u003ccode\u003eIEquatable\u003c/code\u003e, \u003ccode\u003eIDeepCloneable\u003c/code\u003e, and \u003ccode\u003eIBufferMessage\u003c/code\u003e, and is derived from the base \u003ccode\u003eobject\u003c/code\u003e class.\u003c/p\u003e\n"],["\u003cp\u003eThere are several versions of the api available, with the latest one being version 1.4.0.\u003c/p\u003e\n"]]],[],null,[]]
