SoundproofGuide · Comparison
Soundproof vs Audacity Noise Reduction: One Drop vs Manual
Audacity is the free, open-source classic, and its Noise Reduction effect genuinely works. The catch is that it's manual: you sample a noise profile, tune three sliders, apply, and repeat that for every file. Soundproof trades a one-time price for doing all of that automatically in a single drop. Here's an honest comparison so you can pick the right trade.
Audacity = free, offline, powerful, but a manual per-file workflow with a learning curve (audio only). Soundproof = one drop, on-device, audio and video, batch, loudness normalization, $49.99 one-time. On a budget and happy to tinker → Audacity. Want it fast, repeatable, and share-ready → Soundproof.
The core difference: manual vs automatic
Audacity's noise reduction is a two-pass, hands-on process. Soundproof runs the whole chain for you the moment you drop a file in. Side by side, the workflow gap is the whole story:
Audacity is free, open source and a genuinely capable editor well beyond this one effect. If you want the manual route, Audacity’s Noise Reduction manual documents every slider, and our own guide to those settings covers what they do by ear.
Side by side
| Audacity | Soundproof | |
|---|---|---|
| Price | Free | $49.99 one-time |
| Workflow | Manual, per file | One drop |
| Runs offline / local | Yes | Yes |
| Learning curve | Steep | None |
| Cleans video files | No | Yes (remux) |
| Batch a folder | Manual / scripting | Yes |
| Loudness (LUFS) normalize | Manual | Automatic |
| Also a full audio editor | Yes | No (cleanup only) |
Which should you pick?
- Budget first, and you like to tinker → Audacity. It's free and capable, and you also get a full editor.
- You want it fast and repeatable → Soundproof. One drop, no noise profile to draw, same result every time.
- You clean lots of files, or video → Soundproof, for batch and the cleaned-video remux.
- You publish → Soundproof also LUFS-normalizes into a share-ready file; in Audacity that's extra manual steps.
It's free, so there's no harm. We wrote a plain-English walkthrough: how to remove background noise in Audacity. If the manual profile dance gets old, that's exactly the friction Soundproof removes.
Honest limits
Both tools are best on steady noise — fan, AC, hum, hiss — and neither reliably removes background voices or heavy echo. Audacity can do more overall because it's a full editor; Soundproof does one job (clean + level) faster and adds video. See what noise can (and can't) be removed.
Skip the noise-profile dance
Soundproof removes steady background noise and levels loudness in one drop — audio or video, on your Mac. Download it free and clean your own files first.
macOS 13.4+ · Apple Silicon & Intel · Works offline · One-time purchase, no subscription
Frequently asked questions
Is Audacity's noise reduction good?
Yes, for steady noise it's capable and it's free. The downsides are the manual per-file workflow and a learning curve — and aggressive settings can introduce watery artifacts.
Is Soundproof worth paying for when Audacity is free?
It depends on your time. Soundproof trades $49.99 for a one-drop workflow, batch processing, cleaned-video export and automatic loudness — things that take several manual steps in Audacity, per file.
Can Audacity clean the audio in a video?
Not directly — Audacity is an audio editor. Soundproof cleans a video's audio and remuxes it back into the file.
Do both work offline?
Yes. Audacity is a local app, and Soundproof runs entirely on your Mac with no upload.
Which removes more noise?
On steady noise, both do well; results depend more on settings and the recording than the tool. Neither reliably removes background voices or echo.