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, $39.99 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:
Side by side
| Audacity | Soundproof | |
|---|---|---|
| Price | Free | $39.99 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 $39.99 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.