AudioMerge - ComfyUI Built-in Node Documentation

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

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The AudioMerge node combines two audio tracks by overlaying their waveforms. It automatically matches the sample rates of both audio inputs and adjusts their lengths to be equal before merging. The node provides several mathematical methods for combining the audio signals and ensures the output remains within acceptable volume levels.

Inputs

Parameter	Data Type	Input Type	Default	Range	Description
audio1	AUDIO	required	-	-	First audio input to merge
audio2	AUDIO	required	-	-	Second audio input to merge
merge_method	COMBO	required	-	[“add”, “mean”, “subtract”, “multiply”]	The method used to combine the audio waveforms.

Outputs

Output Name	Data Type	Description
AUDIO	AUDIO	The merged audio output containing the combined waveform and sample rate