Hear every word — without cranking the volume
Slipstream applies dynamic range compression so quiet dialogue is easier to catch in movies and TV. Scan your library, preview the result, and process on your Windows PC — files never leave your machine.
$5 one-time · Use on up to 3 PCs · Works offline
See it in action
A quick look at the app — browse your library, preview the result, and process titles without leaving your PC.
Browse your library
Scan a folder on your PC or NAS, group by show and season, then select titles to process.
Made for movie night
Dynamic range compression tames explosive action scenes and lifts whispered dialogue — so you can enjoy the film without riding the remote.
Scan your library
Point Slipstream at a folder — it groups movies and TV seasons so you can select and queue in bulk.
Three strength levels
Gentle, Balanced, or Strong — pick how much help quiet scenes need, per title if you want.
Listen before you decide
Preview loud and quiet moments side by side so you know it sounds right.
Batch your library
Queue up multiple movies or episodes and watch progress with a live ETA.
Your files stay local
Works with movies on your PC or home network drive. Nothing goes to the cloud.
Free updates
Automatic updates when new versions ship — no subscription required.
How it works
Five quick steps from download to a better-sounding copy.
- Step 1
Add a library folder
Point Slipstream at movies on your PC or NAS, or drop in a single file.
- Step 2
Pick a level
Choose Gentle, Balanced, or Strong — per title if you like.
- Step 3
Preview it
Listen to a before-and-after sample.
- Step 4
Process
Slipstream creates a new copy with improved audio.
- Step 5
Watch
Keep the original file — your enhanced copy sits beside it.
Simple pricing
$5
Pay once, keep it forever
- ✓Use on up to 3 Windows PCs
- ✓Works offline (no internet needed day to day)
- ✓Free updates included
- ✓License key emailed right after checkout
By purchasing you agree to the EULA. See our privacy policy and refund policy.
Trust & privacy
Built for people who care where their media goes.
Free updates
Automatic updates when new versions ship, verified before install.
Open-source friendly
We ship the notices and source references required for bundled tools like FFmpeg.
Your privacy matters
No telemetry, no accounts, and your movies never leave your computer.