---
title: "Audio To Chunks"
description: "Local-first visual environment for building and running AI workflows. Build agents visually, deploy anywhere, privacy by design."
canonical: https://docs.nodetool.ai/nodes/nodetool/audio/realtime/audiotochunks
markdown: https://docs.nodetool.ai/nodes/nodetool/audio/realtime/audiotochunks.md
product: NodeTool
source: https://github.com/nodetool-ai/nodetool/blob/main/docs/nodes/nodetool/audio/realtime/audiotochunks.md
---

# Audio To Chunks

**Type:** `nodetool.audio.realtime.AudioToChunks`

**Namespace:** `nodetool.audio.realtime`

## Description

Slices an audio file into a stream of fixed-duration PCM16 chunks.
    audio, stream, chunk, realtime

    Use cases:
    - Feed batch audio into realtime/streaming nodes
    - Simulate a live audio feed from a recording
    - Drive streaming effects and transcription nodes

## Properties

| Property | Type | Description | Default |
|----------|------|-------------|---------|
| audio | `audio` | The audio file to slice into chunks (must be WAV). | `{"type":"audio","uri":"","asset_id":null,"data"...` |
| chunk_duration | `float` | Duration of each emitted chunk in seconds. | `0.25` |

## Outputs

| Output | Type | Description |
|--------|------|-------------|
| chunk | `chunk` |  |

## Related Nodes

Browse other nodes in the [nodetool.audio.realtime](./) namespace.