How it works
Ten seconds of road. One honest number.
A Drive Test is a 10-second recording of a route you know. NVH Lab turns it into a Noise Score you can repeat, compare, and keep — no equipment, no expertise needed.
The loop
Record. Repeat. Compare.
Record a drive
Set up while parked, secure your phone, and capture 10 seconds of a familiar road at a steady speed.
Keep it with your car
Every Drive Test saves to your Garage with the road, speed, tires, and notes you'll want when something changes.
Repeat after a change
New tires, a repair, a modification — or a noise that wasn't there before. Run the same route again.
See what moved
Compare before and after, check similar community cars, and share the result with owners or a workshop.
Why you can trust it
Built for comparable data.
A loud road and a smooth one produce different numbers — so NVH Lab never compares across conditions. The ranking rules below are the same ones the app and the Fleet Board use.
One number, fairly normalized
The Noise Score compares your recording against the community in the same speed band and on the same road surface — higher means quieter.
Your first drive is the reference
A baseline Drive Test is the anchor for your car. Every repeat measures change against it, not against a guess.
Honest by design
Every recording gets a quality grade. Clipping and phone movement are flagged, and calibrated devices are marked — so the data you compare is data you can trust.
Get started
Your first Drive Test takes 10 seconds.
Download NVH Lab, record a route you know, and see how quiet your car really is.
Free for iPhone and Android