EmptyAudio - ComfyUI Built-in Node Documentation

The EmptyAudio node generates a silent audio clip with specified duration, sample rate, and channel configuration. It creates a waveform containing all zeros, producing complete silence for the given duration. This node is useful for creating placeholder audio or generating silent segments in audio workflows.

Inputs

Parameter	Description	Data Type	Required	Range
`duration`	Duration of the empty audio clip in seconds (default: 60.0)	FLOAT	Yes	0.0 to 1.8446744073709552e+19
`sample_rate`	Sample rate of the empty audio clip (default: 44100)	INT	Yes	1 to 192000
`channels`	Number of audio channels (1 for mono, 2 for stereo) (default: 2)	INT	Yes	1 to 2

Outputs

Output Name	Description	Data Type
`AUDIO`	The generated silent audio clip containing waveform data and sample rate information	AUDIO

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AudioMerge - ComfyUI Built-in Node Documentation

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