public sealed class SpeechRecognitionAlternative : IMessage<SpeechRecognitionAlternative>, IEquatable<SpeechRecognitionAlternative>, IDeepCloneable<SpeechRecognitionAlternative>, IBufferMessage, IMessage
Reference documentation and code samples for the Google Cloud Video Intelligence v1 API class SpeechRecognitionAlternative.
Output only. 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.
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.
Output only. A list of word-specific information for each recognized word.
Note: When enable_speaker_diarization is set to true, 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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-07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\u003eThis document provides reference documentation for the \u003ccode\u003eSpeechRecognitionAlternative\u003c/code\u003e class within the Google Cloud Video Intelligence v1 API, specifically for version 3.3.0.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eSpeechRecognitionAlternative\u003c/code\u003e class, used for alternative hypotheses in speech recognition, implements interfaces like \u003ccode\u003eIMessage\u003c/code\u003e, \u003ccode\u003eIEquatable\u003c/code\u003e, \u003ccode\u003eIDeepCloneable\u003c/code\u003e, and \u003ccode\u003eIBufferMessage\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eKey properties of \u003ccode\u003eSpeechRecognitionAlternative\u003c/code\u003e include \u003ccode\u003eConfidence\u003c/code\u003e, representing the likelihood of recognized words, \u003ccode\u003eTranscript\u003c/code\u003e, holding the text of spoken words, and \u003ccode\u003eWords\u003c/code\u003e, containing a list of word-specific details.\u003c/p\u003e\n"],["\u003cp\u003eThe document references multiple versions of the Google Cloud Video Intelligence v1 API, ranging from version 2.2.0 up to the latest release, 3.4.0, but this page specifically references version 3.3.0.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eSpeechRecognitionAlternative\u003c/code\u003e class can be constructed using a default constructor or a copy constructor that accepts another \u003ccode\u003eSpeechRecognitionAlternative\u003c/code\u003e instance.\u003c/p\u003e\n"]]],[],null,[]]
