public sealed class SynthesisInput : IMessage<SynthesisInput>, IEquatable<SynthesisInput>, IDeepCloneable<SynthesisInput>, IBufferMessage, IMessage
Contains text input to be synthesized. Either text or ssml must be
supplied. Supplying both or neither returns
[google.rpc.Code.INVALID_ARGUMENT][]. The input size is limited to 5000
characters.
The SSML document to be synthesized. The SSML document must be valid
and well-formed. Otherwise the RPC will fail and return
[google.rpc.Code.INVALID_ARGUMENT][]. For more information, see
SSML.
[[["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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-07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 webpage details the \u003ccode\u003eSynthesisInput\u003c/code\u003e class, part of the Google Cloud Text-to-Speech .NET library, specifically version 2.3.0, with links to other previous versions.\u003c/p\u003e\n"],["\u003cp\u003e\u003ccode\u003eSynthesisInput\u003c/code\u003e is used to provide text or SSML for text-to-speech synthesis, with the requirement that only one of these formats be supplied at a time, with a limit of 5000 characters.\u003c/p\u003e\n"],["\u003cp\u003eThe class implements multiple interfaces, including \u003ccode\u003eIMessage\u003c/code\u003e, \u003ccode\u003eIEquatable\u003c/code\u003e, \u003ccode\u003eIDeepCloneable\u003c/code\u003e, and \u003ccode\u003eIBufferMessage\u003c/code\u003e, and inherits from \u003ccode\u003eObject\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003e\u003ccode\u003eSynthesisInput\u003c/code\u003e has two constructors, one default and another that takes a \u003ccode\u003eSynthesisInput\u003c/code\u003e instance, and includes properties to set either \u003ccode\u003eText\u003c/code\u003e or \u003ccode\u003eSsml\u003c/code\u003e for the input source.\u003c/p\u003e\n"],["\u003cp\u003eThe latest version of the library available is 3.10.0, with numerous other versions listed as well.\u003c/p\u003e\n"]]],[],null,[]]