Silence Detection Utility for macOS
Analyze 60 minutes of audio in ~2 seconds on Apple Silicon. Adjust threshold with real-time visual feedback — no re-processing required.
Import clips of any resolution or frame rate and join them directly. Zero re-encoding preserves original quality.
Export directly to Final Cut Pro and DaVinci Resolve. Source clips import into your event — ready to edit.
Every action is fully remappable. Categorized shortcut editor with conflict detection for professional workflows.
Drag and drop video or audio files directly into the SDUtility window, or use File → Import to browse. Supported formats include MP4, MOV, M4V, and any format supported by AVFoundation.
Click the "Process" button after importing your clips. SDUtility analyzes the audio waveform using vDSP-accelerated RMS analysis, identifies silent regions below your chosen threshold, and marks them visually in the sidecar track. You can then adjust the threshold and minimum duration sliders to fine-tune detection in real time — no re-processing needed.
SDUtility supports six export formats: Lossless Passthrough (direct copy), ProRes 422 HQ, H.264, HEVC (H.265), FCPXML for Final Cut Pro, and FCPXML for DaVinci Resolve. You can select multiple formats and export them all at once.
Yes. Simply import your clips, arrange them in the timeline, and export. You do not need to run the Process step. SDUtility handles clips with different resolutions and frame rates seamlessly.
No. All processing happens locally on your Mac. SDUtility makes no network connections and requires no account or login. See our Privacy Policy for details.
Toggle the sidecar track (View → Show Silence Track or press the shortcut). Silence regions appear as red overlays on the waveform. Drag the edges of any region to adjust its boundaries frame-by-frame, or use keyboard shortcuts to navigate between regions.
Three modes: "Silence Removed" cuts out all detected silence, "Silence as Gaps" replaces silence with empty gaps, and "Silence as Clips" keeps the silent sections as separate clips in your timeline.
Need help? Contact us at kymeraj.llc@gmail.com