SaveAudioMP3 - ComfyUI Built-in Node Documentation - ComfyUI

The SaveAudioMP3 node saves audio data as an MP3 file. It takes an audio input and exports it to the output directory with a customizable filename and quality setting, handling file naming and MP3 format conversion automatically. This node is deprecated and may be removed in future versions.

Inputs

Parameter	Description	Data Type	Required	Range
`audio`	The audio data to be saved as an MP3 file	AUDIO	Yes	-
`filename_prefix`	The prefix for the output filename (default: “audio/ComfyUI”)	STRING	No	-
`quality`	The audio quality setting for the MP3 file (default: “V0”)	COMBO	No	`"V0"` `"128k"` `"320k"`
`prompt`	Internal prompt data, automatically provided by the system	PROMPT	No	-
`extra_pnginfo`	Additional PNG information, automatically provided by the system	EXTRA_PNGINFO	No	-

Note: If the input audio is None (for example, when the source video has no audio track), the node raises a ValueError.

Outputs

Output Name	Description	Data Type
`audio`	The audio data that was saved to an MP3 file	AUDIO

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