MediaPipeTasksAudio Framework Reference

AudioChunk

struct AudioChunk: Sendable, Equatable

Incremental mono PCM audio chunk emitted by TextToSpeech.synthesizeStream(_:options:).

  • Declaration

    Swift

    init(samples: [Float], sampleRateHz: Int = 24000, chunkIndex: Int = 0, isFinal: Bool = false, wordTimestamps: [WordTimestamp] = [])

  • Zero-based monotonic index of this chunk within the stream.

    Declaration

    Swift

    var chunkIndex: Int

  • Duration of this chunk in seconds.

    Declaration

    Swift

    var durationSeconds: Float { get }

  • True if this is the final chunk of the synthesis stream.

    Declaration

    Swift

    var isFinal: Bool

  • Audio sample rate in Hz (e.g. 24000 for Kokoro-82M).

    Declaration

    Swift

    var sampleRateHz: Int

  • Normalized 32-bit floating-point mono PCM samples in [-1.0, 1.0].

    Declaration

    Swift

    var samples: [Float]

  • Word-level timing alignments for this chunk.

    Declaration

    Swift

    var wordTimestamps: [WordTimestamp]