> ## Documentation Index
> Fetch the complete documentation index at: https://comfytv.org/llms.txt
> Use this file to discover all available pages before exploring further.

# Audio Split

> Cut an audio source into two parts at one point on the waveform. Emits both halves as separate outputs.

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  <img src="https://mintcdn.com/comfytv/dMkMxJDZdIo4YzAU/images/nodes/_placeholder.svg?fit=max&auto=format&n=dMkMxJDZdIo4YzAU&q=85&s=b54171099e5b02d4313fe581171ebbcc" alt="Audio Split" width="800" height="450" data-path="images/nodes/_placeholder.svg" />
</Frame>

## What this node does

**Audio Split** places a single cut point (**split\_s**) on a waveform timeline and produces two audio snapshots: **audio\_a** (before the cut) and **audio\_b** (after it). Like Audio Trim it accepts either an audio input or a video input (whose audio track is split).

Both parts persist to the project history, so either half can feed a different branch of your graph.

## When to use it

* Split a long music generation into intro and body, using each separately
* Cut narration at a scene boundary and route the halves to different videos
* Keep both sides of a cut instead of discarding one (which Audio Trim would)

## How ComfyTV designed this

* **One cut, two outputs**: the split point is dragged on the same waveform timeline used by Audio Trim; both resulting files are written and stored.
* **Stage** + **▶ Run**: re-splits the upstream snapshot; downstream nodes read whichever half they're wired to.
* **No GPU**: PyAV on disk.

## Types (COMFYTV\_\* vs native ComfyUI)

| ComfyTV type    | What it is                            | vs ComfyUI             |
| --------------- | ------------------------------------- | ---------------------- |
| `COMFYTV_AUDIO` | Audio URL snapshot                    | Bridge to/from `AUDIO` |
| `COMFYTV_VIDEO` | Video URL snapshot (audio track used) | Bridge to/from `VIDEO` |

## Parameters

### audio (input, optional)

Source `COMFYTV_AUDIO`. Wire this or **video**.

### video (input, optional)

Source `COMFYTV_VIDEO`; its audio track is split.

### split\_s

The cut position in seconds, dragged on the waveform.

## Outputs

| Output       | Type            | Meaning             | Downstream         |
| ------------ | --------------- | ------------------- | ------------------ |
| **audio\_a** | `COMFYTV_AUDIO` | Part before the cut | Any audio consumer |
| **audio\_b** | `COMFYTV_AUDIO` | Part after the cut  | Any audio consumer |

## Step by step

1. Wire an audio (or video) source.
2. Drag the cut point on the waveform; preview both sides.
3. **▶ Run**; wire **audio\_a** and **audio\_b** to their destinations.

## Full guides (recommended reading)

| Guide                                                                                    | Contents                        |
| ---------------------------------------------------------------------------------------- | ------------------------------- |
| [Video and audio](https://github.com/jtydhr88/ComfyTV/blob/main/docs/video-and-audio.md) | Clip, demux, mux, audio tooling |

## Repository and workflows

| Resource              | Link                                                                                                     |
| --------------------- | -------------------------------------------------------------------------------------------------------- |
| **GitHub repository** | [https://github.com/jtydhr88/ComfyTV](https://github.com/jtydhr88/ComfyTV)                               |
| **User guides index** | [https://github.com/jtydhr88/ComfyTV/tree/main/docs](https://github.com/jtydhr88/ComfyTV/tree/main/docs) |

## FAQ

**Q: I only need one half.**\
A: Use **Audio Trim** instead — one range in, one output out.

**Q: split\_s at 0 or beyond the end?**\
A: One side ends up empty; place the cut inside the source duration.

## Related nodes

* **Audio Trim** — keep one range
* **Audio Crossfade** — join parts back with a blend
* **Mux · Audio** — attach a part to video