> ## Documentation Index
> Fetch the complete documentation index at: https://dripart-docs-comfy-router-docs.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# LTXVReferenceAudio - ComfyUI Built-in Node Documentation

> The LTXV Reference Audio node is used for speaker identity transfer in audio generation.

The LTXV Reference Audio node is used for speaker identity transfer in audio generation. It encodes a reference audio clip into the conditioning for a model, allowing the generated audio to adopt the speaker's voice characteristics. It can also apply identity guidance, which runs an extra processing step to amplify the speaker identity effect.

## Inputs

| Parameter                 | Description                                                                                                                                                            | Data Type    | Required | Range       |
| ------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------ | -------- | ----------- |
| `model`                   | The model to be patched with identity guidance.                                                                                                                        | MODEL        | Yes      | -           |
| `positive`                | The positive conditioning input.                                                                                                                                       | CONDITIONING | Yes      | -           |
| `negative`                | The negative conditioning input.                                                                                                                                       | CONDITIONING | Yes      | -           |
| `reference_audio`         | Reference audio clip whose speaker identity to transfer. \~5 seconds recommended (training duration). Shorter or longer clips may degrade voice identity transfer.     | AUDIO        | Yes      | -           |
| `audio_vae`               | LTXV Audio VAE for encoding the reference audio.                                                                                                                       | VAE          | Yes      | -           |
| `identity_guidance_scale` | Strength of identity guidance. Runs an extra forward pass without reference each step to amplify speaker identity. Set to 0 to disable (no extra pass). (default: 3.0) | FLOAT        | No       | 0.0 - 100.0 |
| `start_percent`           | Start of the sigma range where identity guidance is active. (default: 0.0)                                                                                             | FLOAT        | No       | 0.0 - 1.0   |
| `end_percent`             | End of the sigma range where identity guidance is active. (default: 1.0)                                                                                               | FLOAT        | No       | 0.0 - 1.0   |

## Outputs

| Output Name | Description                                                                 | Data Type    |
| ----------- | --------------------------------------------------------------------------- | ------------ |
| `model`     | The model patched with the identity guidance function.                      | MODEL        |
| `positive`  | The positive conditioning, now containing the encoded reference audio data. | CONDITIONING |
| `negative`  | The negative conditioning, now containing the encoded reference audio data. | CONDITIONING |

> This documentation was AI-generated. If you find any errors or have suggestions for improvement, please feel free to contribute! [Edit on GitHub](https://github.com/Comfy-Org/embedded-docs/blob/main/comfyui_embedded_docs/docs/LTXVReferenceAudio/en.md)

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