PreviewAudio - ComfyUI Built-in Node Documentation - ComfyUI

The Preview Audio node lets you listen to audio directly inside ComfyUI without saving it to the output directory. It receives an audio input, checks that audio data is actually present, and then plays it through a preview player in the interface while passing the same audio on as its output.

Inputs

Parameter	Description	Data Type	Required	Range
`audio`	The audio data to preview. If this input is None, the node raises a ValueError, which can happen when the source video has no audio track.	AUDIO	Yes	-

Outputs

Output Name	Description	Data Type
`audio`	The audio data passed through unchanged from the input, so the node can be placed in the middle of a workflow.	AUDIO

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