AI Docs
API
Class References
Function References
- text
- textOptions
- combineStrategies
- convertMessagesToModelMessages
- convertZodToJsonSchema
- createReplayStream
- embedding
- generateMessageId
- maxIterations
- messages
- modelMessageToUIMessage
- modelMessagesToUIMessages
- normalizeToUIMessage
- parsePartialJSON
- summarize
- toServerSentEventsStream
- toServerSentEventsResponse
- toolDefinition
- uiMessageToModelMessages
- realtimeToken
- untilFinishReason
Interface References
- AIAdapter
- AIAdapterConfig
- AgentLoopState
- AudioPart
- AudioVisualization
- BaseStreamChunk
- TextCompletionChunk
- TextOptions
- ChunkRecording
- ChunkStrategy
- ClientTool
- ContentPartSource
- ContentStreamChunk
- DefaultMessageMetadataByModality
- DocumentPart
- DoneStreamChunk
- EmbeddingOptions
- EmbeddingResult
- ErrorStreamChunk
- ImagePart
- InternalToolCallState
- JSONParser
- ModelMessage
- ProcessorResult
- ProcessorState
- RealtimeAdapter
- RealtimeClientOptions
- RealtimeConnection
- RealtimeMessage
- RealtimeSessionConfig
- RealtimeToken
- RealtimeTokenAdapter
- RealtimeTokenOptions
- ResponseFormat
- ServerTool
- StreamProcessorEvents
- StreamProcessorHandlers
- StreamProcessorOptions
- SummarizationOptions
- SummarizationResult
- TextPart
- ThinkingPart
- ThinkingStreamChunk
- Tool
- ToolCall
- ToolCallPart
- ToolCallStreamChunk
- ToolConfig
- ToolDefinition
- ToolDefinitionConfig
- ToolDefinitionInstance
- ToolInputAvailableStreamChunk
- ToolResultPart
- ToolResultStreamChunk
- UIMessage
- VideoPart
Type Alias References
- AgentLoopStrategy
- AnyClientTool
- TextStreamOptionsForModel
- TextStreamOptionsUnion
- ConstrainedContent
- ConstrainedModelMessage
- ContentPart
- ContentPartForModalities
- ExtractModalitiesForModel
- ExtractModelsFromAdapter
- InferToolInput
- InferToolName
- InferToolOutput
- MessagePart
- RealtimeEvent
- RealtimeMessagePart
- RealtimeMode
- RealtimeStatus
- ModalitiesArrayToUnion
- Modality
- StreamChunk
- ToolCallState
- ToolResultState
Variable References
AI/LLM: This documentation page is available in plain markdown format at/ai/latest/docs/reference/interfaces/TTSCapabilities.md
TTSCapabilities
Defined in: packages/ai/src/activities/generateSpeech/adapter.ts:14
What a TTS adapter can do beyond a single voice reading a single string.
Declared statically so generateSpeech() can reject an unsupported request before it reaches the provider, instead of surfacing a provider 422.
Properties#
maxSpeakers?#
ts
optional maxSpeakers?: number;Defined in: packages/ai/src/activities/generateSpeech/adapter.ts:20
Maximum number of distinct voices accepted across turns (ElevenLabs 10, Gemini 2). Omit it when the adapter has no dialogue endpoint — then turns is rejected outright.
timestamps?#
ts
optional timestamps?: boolean;Defined in: packages/ai/src/activities/generateSpeech/adapter.ts:22
Set when the adapter can honour timestamps: true.