public sealed class SynthesisInput : IMessage<SynthesisInput>, IEquatable<SynthesisInput>, IDeepCloneable<SynthesisInput>, IBufferMessage, IMessage
Reference documentation and code samples for the Google Cloud Text-to-Speech v1 API class SynthesisInput.
Contains text input to be synthesized. Either text or ssml must be
supplied. Supplying both or neither returns
[google.rpc.Code.INVALID_ARGUMENT][google.rpc.Code.INVALID_ARGUMENT]. The
input size is limited to 5000 bytes.
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][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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-07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\u003eThe latest version available for the Google Cloud Text-to-Speech v1 API class SynthesisInput is 3.10.0.\u003c/p\u003e\n"],["\u003cp\u003eThe SynthesisInput class is used for providing text input to be synthesized, and it supports either plain text or SSML (Speech Synthesis Markup Language).\u003c/p\u003e\n"],["\u003cp\u003eThe input size for SynthesisInput is limited to 5000 bytes, and either the \u003ccode\u003etext\u003c/code\u003e or \u003ccode\u003essml\u003c/code\u003e field must be provided to avoid errors.\u003c/p\u003e\n"],["\u003cp\u003eThe SynthesisInput class implements interfaces such as \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\u003eThe class has properties such as \u003ccode\u003eHasSsml\u003c/code\u003e, \u003ccode\u003eHasText\u003c/code\u003e, \u003ccode\u003eInputSourceCase\u003c/code\u003e, \u003ccode\u003eSsml\u003c/code\u003e, and \u003ccode\u003eText\u003c/code\u003e to define the type of input.\u003c/p\u003e\n"]]],[],null,[]]
