sentence

Text sentence aggregation processor for Pipecat.

This module provides a frame processor that accumulates text frames into complete sentences, only outputting when a sentence-ending pattern is detected.

class pipecat.processors.aggregators.sentence.SentenceAggregator

Bases: FrameProcessor

Aggregates text frames into complete sentences.

This processor accumulates incoming text frames until a sentence-ending pattern is detected, then outputs the complete sentence as a single frame. Useful for ensuring downstream processors receive coherent, complete sentences rather than fragmented text.

Frame input/output:

TextFrame("Hello,") -> None
TextFrame(" world.") -> TextFrame("Hello, world.")

__init__()

Initialize the sentence aggregator.

Sets up internal state for accumulating text frames into complete sentences.

async process_frame(frame: Frame, direction: FrameDirection)

Process incoming frames and aggregate text into complete sentences.

Parameters:

• frame – The incoming frame to process.

• direction – The direction of frame flow in the pipeline.