> ## Documentation Index
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# ReferenceTimbreAudio - ComfyUI Built-in Node Documentation

> Complete documentation for the ReferenceTimbreAudio node in ComfyUI. Learn its inputs, outputs, parameters and usage.

> 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/ReferenceTimbreAudio/en.md)

This node sets a reference audio timbre for use in the "ace step 1.5" process. It works by taking a conditioning input and optionally a latent representation of audio, then attaches that latent data to the conditioning for use by subsequent nodes in the workflow.

## Inputs

| Parameter      | Data Type    | Required | Range | Description                                                                                                         |
| -------------- | ------------ | -------- | ----- | ------------------------------------------------------------------------------------------------------------------- |
| `conditioning` | CONDITIONING | Yes      |       | The conditioning data to which the reference audio information will be attached.                                    |
| `latent`       | LATENT       | No       |       | An optional latent representation of the reference audio. When provided, its samples are added to the conditioning. |

## Outputs

| Output Name    | Data Type    | Description                                                                                                                    |
| -------------- | ------------ | ------------------------------------------------------------------------------------------------------------------------------ |
| `conditioning` | CONDITIONING | The modified conditioning data, now containing the reference audio timbre latents if the optional `latent` input was provided. |