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# EmptyAceStep1.5LatentAudio - ComfyUI Built-in Node Documentation

> Complete documentation for the EmptyAceStep1.5LatentAudio 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/EmptyAceStep1.5LatentAudio/en.md)

The Empty Ace Step 1.5 Latent Audio node creates an empty latent tensor designed for audio processing. It generates a silent audio latent of a specified duration and batch size, which can be used as a starting point for audio generation workflows in ComfyUI. The node calculates the latent length based on the input seconds and a fixed sample rate.

## Inputs

| Parameter    | Data Type | Required | Range        | Description                                                         |
| ------------ | --------- | -------- | ------------ | ------------------------------------------------------------------- |
| `seconds`    | FLOAT     | No       | 1.0 - 1000.0 | The duration of the audio to generate, in seconds (default: 120.0). |
| `batch_size` | INT       | No       | 1 - 4096     | The number of latent images in the batch (default: 1).              |

## Outputs

| Output Name | Data Type | Description                                                                          |
| ----------- | --------- | ------------------------------------------------------------------------------------ |
| `LATENT`    | LATENT    | An empty latent tensor representing silent audio, with a type identifier of "audio". |