MediaPipeTasksAudio Framework Reference

TtsStream

public final class TtsStream : @unchecked Sendable

Bidirectional / pull-based streaming synthesis handle supporting incremental LLM text pushing (pushText + finishInput) alongside readNext() and cancel() (also available as TTSStream).

• pushText(_:)

  Appends an incremental text fragment into the sentence chunker.

  Declaration

  Swift

  public func pushText(_ textDelta: String) throws

• finishInput()

  Marks the end of incremental text input, flushing any trailing partial sentence.

  Declaration

  Swift

  public func finishInput() throws

• readNext()

  Pulls the next synthesized TtsAudioChunk synchronously, or returns nil at end-of-stream.

  Declaration

  Swift

  public func readNext() throws -> TtsAudioChunk?

• cancel()

  Lock-free cancellation for this stream.

  Declaration

  Swift

  public func cancel()

• close()

  Cancels any in-flight synthesis and marks this stream as closed.

  Declaration

  Swift

  public func close()