> ## 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 · Vocals Only

> **Roadmap / pending** — Demucs vocal stem separation from video/mix. Workflow slot exists; backend not wired.

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

## Intended purpose

**Audio · Vocals Only** takes `COMFYTV_VIDEO` (or demuxed audio path), runs a **Demucs**-style workflow, outputs isolated **vocals** as `COMFYTV_AUDIO`. Lip-sync, vocal replace, karaoke prep, etc.

> ⚠️ **Current status**: **workflow** dropdown scans [`workflows/audio-vocal/`](https://github.com/jtydhr88/ComfyTV/tree/main/workflows/audio-vocal) ([no shipped JSON yet](https://github.com/jtydhr88/ComfyTV/blob/main/workflows/README.md)). Run fails without backend. Planned: `lum3on/ComfyUI_AudioTools` `AudioStemSeparate`. See [roadmap.md](https://github.com/jtydhr88/ComfyTV/blob/main/docs/roadmap.md).

## When to use it (once shipped)

* Extract vocals from MV for IA2V / TTS alignment
* Process vocal stem in **Audio Stage**
* Pair with **Background Only**

## Planned design

* **Stage** + **workflow** + **▶ Run** + snapshot.
* Input: `upstream videos: [video]`, no text prompt.
* Demucs stem → WAV → `COMFYTV_AUDIO` URL.

## Types

| Type            | Notes            |
| --------------- | ---------------- |
| `COMFYTV_VIDEO` | Input with audio |
| `COMFYTV_AUDIO` | Vocal output     |

## Parameters

### workflow

[`workflows/audio-vocal/`](https://github.com/jtydhr88/ComfyTV/tree/main/workflows/audio-vocal) (reserved, not shipped).

### video

Source `COMFYTV_VIDEO`. Optional prior **Demux · Audio Track**.

## Outputs (when implemented)

| Output    | Type            |
| --------- | --------------- |
| **audio** | `COMFYTV_AUDIO` |

## Step by step (today)

1. **Demucs separation not available** yet.
2. Need raw track: **Demux · Audio Track** (✅).
3. Advanced: drop custom workflow in `audio-vocal/` + sidebar config.

## Full guides (recommended reading)

> This page covers **one node only**. For end-to-end workflows, multi-stage pipelines, type conversion, and design rationale, see the [ComfyTV user guides](https://github.com/jtydhr88/ComfyTV/tree/main/docs) on GitHub:

| Guide                                                                                    | Contents                                                                |
| ---------------------------------------------------------------------------------------- | ----------------------------------------------------------------------- |
| [Getting started](https://github.com/jtydhr88/ComfyTV/blob/main/docs/getting-started.md) | Install, canvas basics, per-stage Run, snapshots, Project, Image Picker |
| [Video and audio](https://github.com/jtydhr88/ComfyTV/blob/main/docs/video-and-audio.md) | Clip, crop, resize, extract frame, demux vs Generate video              |
| [Roadmap](https://github.com/jtydhr88/ComfyTV/blob/main/docs/roadmap.md)                 | Supported vs planned backends (video upscale, Demucs, etc.)             |

## 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)                                         |
| **Built-in workflows** | [https://github.com/jtydhr88/ComfyTV/tree/main/workflows](https://github.com/jtydhr88/ComfyTV/tree/main/workflows)                               |
| **Model checklist**    | [https://github.com/jtydhr88/ComfyTV/blob/main/docs/models.md](https://github.com/jtydhr88/ComfyTV/blob/main/docs/models.md)                     |
| **Custom workflows**   | [https://github.com/jtydhr88/ComfyTV/blob/main/docs/custom-workflows.md](https://github.com/jtydhr88/ComfyTV/blob/main/docs/custom-workflows.md) |

## FAQ

**Q: vs Demux?**\
A: Demux copies whole track; Vocals Only **AI-separates** vocals from accompaniment.

**Q: Empty workflow list?**\
A: Expected — nothing shipped yet.

**Q: Models when shipped?**\
A: Demucs + ComfyUI\_AudioTools; watch [models.md](https://github.com/jtydhr88/ComfyTV/blob/main/docs/models.md).

## Related nodes

* **Background Only** (pending)
* **Demux · Audio Track** (✅)
* **Video Stage** (IA2V)