PreviewAudio - ComfyUI Built-in Node Documentation

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

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The PreviewAudio node generates a temporary audio preview file that can be displayed in the interface. It inherits from SaveAudio but saves files to a temporary directory with a random filename prefix. This allows users to quickly preview audio outputs without creating permanent files.

Inputs

Parameter	Data Type	Required	Range	Description
audio	AUDIO	Yes	-	The audio data to preview
prompt	PROMPT	No	-	Hidden parameter for internal use
extra_pnginfo	EXTRA_PNGINFO	No	-	Hidden parameter for internal use

Outputs

Output Name	Data Type	Description
ui	UI	Displays the audio preview in the interface