ComfyUI Extension: comfyui-audio-silence-trim

Authored by gaoqi125

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A small ComfyUI custom node for shortening long silent sections in AUDIO inputs.

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README

ComfyUI Audio Silence Trim

A small ComfyUI custom node that shortens long silent sections in AUDIO inputs while keeping a configurable portion of each detected silence.

tests

What It Does

  • Detects silence from the mean absolute waveform amplitude.
  • Keeps part of each silence using keep_ratio.
  • Caps retained silence with max_keep_seconds.
  • Leaves short cuts untouched when the removed duration is below min_cut_seconds.
  • Returns both the trimmed AUDIO object and a JSON report.

Install

Clone this repository into your ComfyUI custom nodes directory:

cd ComfyUI/custom_nodes
git clone https://github.com/gaoqi125/comfyui-audio-silence-trim.git

Restart ComfyUI. The node appears as Audio Silence Trim in the Audio category.

Test

python3 -m unittest discover -s tests -v

The tests use NumPy arrays and do not require a running ComfyUI instance.

Support and Security

Use GitHub Issues for reproducible bugs and Discussions for usage questions. See SECURITY.md and SUPPORT.md before sharing logs or sample media.

Defaults

  • keep_ratio: 0.5
  • max_keep_seconds: 0.30
  • silence_threshold_db: -38.0
  • min_silence_seconds: 0.18
  • min_cut_seconds: 0.05

Run ComfyUI workflows without the setup

No installs, no CUDA version roulette, no GPU sitting idle on your bill. Bring a workflow and run it in the browser.

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