AudioAdjustVolume - ComfyUI Built-in Node Documentation

The AudioAdjustVolume node modifies the loudness of audio by applying volume adjustments in decibels (dB). It takes an audio input and applies a gain factor based on the specified volume level, where positive values increase volume and negative values decrease it. The node returns the modified audio with the same sample rate as the original.

Inputs

Parameter	Description	Data Type	Required	Range
`audio`	The audio input to be processed	AUDIO	Yes	-
`volume`	Volume adjustment in decibels (dB). 0 = no change, +6 = double, -6 = half, etc (default: 1)	INT	Yes	-100 to 100

Outputs

Output Name	Description	Data Type
`audio`	The processed audio with adjusted volume level	AUDIO

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Outputs