TrimAudioDuration - ComfyUI Built-in Node Documentation

The TrimAudioDuration node allows you to cut a specific time segment from an audio file. You can specify when to start the trim and how long the resulting audio clip should be. The node works by converting time values to audio frame positions and extracting the corresponding portion of the audio waveform.

Inputs

Parameter	Description	Data Type	Required	Range
`audio`	The audio input to be trimmed	AUDIO	Yes	-
`start_index`	Start time in seconds, can be negative to count from the end (supports sub-seconds). Default: 0.0	FLOAT	Yes	-0xffffffffffffffff to 0xffffffffffffffff
`duration`	Duration in seconds. Default: 60.0	FLOAT	Yes	0.0 to 0xffffffffffffffff

Note: The start time must be less than the end time and within the audio length. Negative start values count backwards from the end of the audio. If the start time is negative, it is converted to a frame position counting from the end of the audio. The start and end frames are clamped to the audio boundaries. If the start time equals or exceeds the end time, the node will raise an error.

Outputs

Output Name	Description	Data Type
`audio`	The trimmed audio segment with the specified start time and duration	AUDIO

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Inputs

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