01Phase 01
1. CMX 3600 EDL for Premiere & DaVinci
Export standard EDL timeline cut lists compatible with Adobe Premiere Pro, DaVinci Resolve, and Avid Media Composer.
EDL · FCPXML · Audacity · CSV
DAW & Video NLE Integrations
Seamlessly integrate browser-local silence detection into your professional video and audio editing workflows without re-encoding video or losing multi-track edits.
DAW & Video NLE Integrations
Ready for a local audio or video file
Local Browser Audio Engine
Scanning speech & quiet pauses…
Reading media and computing RMS energy…
1Reading file
2Decoding audio
3Scanning quiet
4Building map
Loudness:-16.0 LUFS
Peak:-1.0 dBFS
0:00 savedPacing Preset
Speech cushionsFine-tune detection parameters
Balanced
Balanced (~-38dB): Calibrated natural balance recommended for podcasts, YouTube videos, and dialogue.
0.80s
0.20s (all micro-pauses)2.50s (only long pauses)
0.32s
0.00s (flush / jump)0.80s (spacious)
Automatically removes silence before first speech and after last speech.
Pause #01✂️ Cut Proposed
00:14.2 → 00:16.8 (2.6s gap)
1.6s quiet gap; keeps 0.32s breathing room.
Tip: Press Del or Backspace to cut selected silenceR to keep
Silence Map (0)
0 silences found (0.0s dead air) · 0 will be cut, 0 kept
Target ScopeAll Clips
All edits reversible
Studio DSP & Ambience Rack
Real-Time DSP✨
1-Click Full Background Noise Removal
Removes 80Hz rumble, 50/60Hz hum, room hiss & mouth clicks
Anti-Blackout
Fills shortened silence gaps with authentic room tone synthesized from your recording, eliminating unnatural "vacuum dropouts".
Butterworth
-40 dBFS
+2.5dB Clarity
Sibilance
Cubic Spline
-1.0 dBFS
Subtitle Range Protection
Protect Intentional Sentences & Pauses
Importing your subtitle transcript locks dialogue boundaries so dramatic reflections and deliberate speech pauses inside sentences are never auto-cut.
No subtitles loaded
Hesitation Splicer (Fillers & Stutters)
Removes verbal hesitation sounds (um, uh, er, like) and repeated stutters.
0 fillers0 stutters
Merged with acoustic cuts
A/V Dual-System Sync
Drift ConformerEdit Evidence & Provenance
Manifest v1.0Total Proposals
0
Active Cuts
0
Restored Pauses
0
Protected Lines
0
Structural Export Validation:
✔ Zero server uploads (100% Client-Side)
✔ True-Peak Limiter ceiling ≤ -1.0 dBFS
✔ Duration conservation verified (Δ ≤ 5ms)
✔ 8ms anti-click zero-crossing micro-fades
Media Preflight & Capabilities
Source Format:Audio Track
Sample Rate:44.1 kHz
Channels:Stereo (2-ch)
Memory Footprint:~12 MB RAM
Local Processing:100% Client-Side
Verified Export Options:
- ✔ 16-Bit PCM WAV: Uncompressed lossless master audio.
- ✔ Audacity Labels: Drag-and-drop label track for Audacity / Reaper.
- ✔ CSV Cue Sheet: Tabular marker list with exact timestamps.
- ✔ EDL / FCPXML: Timeline cut lists: EDL for Premiere & Resolve, FCPXML for Final Cut & Resolve.
- ✔ Evidence Manifest: JSON & CSV audit trail with a CRC-32 source checksum.
Episode Show Notes
Silence #01 detected (00:04.4 → 00:05.0)
🎬Sequence Track1 clip
Pause Map & Timeline
Click / drag to scrub0:000:00
✨
✨ Cleaning Noise...Background Noise Remover
Multi-band spectral Wiener filtering & room rumble removal
Strong (75%)
0% (Off)50% (Balanced)100% (Studio Max)
Space Play/Pause · Del Trim · R Keep · J/L Jump 2sDouble-click waveform to trim
Lossless 16-Bit Master Audio & Edit Ledger Export
Rendered locally in browser memory with 8ms anti-click micro-fades. Zero server upload.
Detected from video
Chain in Studio FlowTimeline files reference your media by file name only. Final Cut Pro, DaVinci Resolve or Premiere Pro will ask you to relink the clip to the original file.
✨ Hover any tool icon to see what it does · Click to launch
100% browser-local processing · No files uploaded to any server
Acoustic Engineering Guide · Architecture
How this tool works in browser memory
How this tool decodes, analyzes, and masters your dialogue locally with zero cloud latency.
02Phase 02
2. Final Cut Pro FCPXML
Generate structured FCPXML timeline sequences for Final Cut Pro with exact edit splice points and retained cushions.
03Phase 03
3. Audacity Label Tracks & CSV Cue Sheets
Import silence cut regions directly into Audacity or export RFC-compliant CSV cue sheets for custom automation.
Connected finishing workflows
Explore companion utilities for dialogue cleanup, speech pacing, and mastering.
Audio Standards & Research
Engineering guides & deep-dive workflows
Explore the acoustic principles, ITU-R loudness standards, and pacing techniques behind this tool.
DaVinci Resolve10 min read
How to Remove Silence in DaVinci Resolve (Free Version)
What the free DaVinci Resolve can do natively: Ripple Delete Silence settings for natural pacing, the manual blade method, and importing a reviewed EDL.
Premiere Pro9 min read
How to Remove Silence in Premiere Pro Without a Plugin
Built-in ways to remove silence in Premiere Pro: the Text panel Pauses filter, manual Add Edit and ripple trims with a cushion, and EDL import.
Jump Cuts7 min read
How to Edit Video Jump Cuts Without Creating Jumpy, Jarring Audio
Eliminating the "jump-cut shock": combining 1.15x punch-in camera zooms with 8ms equal-power audio micro-fades and 0.32s speech cushions.
Frequently Asked Questions
Common Questions & Technical Clarifications
What NLE and DAW export formats are supported?+
AutoSilenceCut exports CMX 3600 EDL (Adobe Premiere Pro, DaVinci Resolve), Final Cut Pro XML (.fcpxml, for Final Cut Pro and DaVinci Resolve), Audacity Label Tracks (.txt), and RFC-compliant CSV Edit Ledgers (.csv).
How do I import silence cut markers into Audacity?+
In Audacity, go to File > Import > Labels... and select the exported .txt file. Audacity will instantly create a dedicated Label Track showing all shortened silence gaps and retained cushion boundaries.
How do I use the CMX 3600 EDL in Adobe Premiere Pro or DaVinci Resolve?+
In Premiere Pro or DaVinci Resolve, select File > Import > Timeline (EDL) and select the exported .edl file. It will construct a sequenced timeline referencing your original source media with all silence cuts mapped to frame-accurate edit points.
Are timeline cuts frame-quantized for video synchronization?+
Yes. You choose the EDL frame rate (23.976, 24, 25, 29.97 drop-frame or non-drop, 30, 50, 59.94 drop-frame or non-drop, or 60 fps), and every cut point is rounded to a whole frame at that rate. Drop-frame rates use correct SMPTE drop-frame timecode with the ; separator. You can also set a source start timecode such as 01:00:00:00 to match camera files.
Is there any fee or subscription required to export NLE timeline files?+
No. All NLE and DAW export integrations are 100% free with no account or paywall required.