Measure the acoustic tranquility of your future home, with proof
Sonalyze performs an Acoustic Performance Diagnosis (APD) in 24h, 48h or up to 7 days: a factual measurement, intelligent analysis, and clear report to make confident decisions.

Already adopted by trusted homeowners, buyers and professionals. A transparency standard that secures decision-making.
For everything you can't "test" in a 10-minute visit
APD helps you make the right decisions
Avoid bad surprises after moving in
APD objectifies the real quietness of a home, day and night, instead of relying on a fleeting impression.
Negotiate (or sell) with facts, not feelings
You have a clear, shareable report that everyone agrees on and reduces gray areas.
Preserve your privacy with a "privacy-first" approach
The goal is to qualify the sound environment and its causes, without turning the home into a surveillance camera.
An APD is concrete: measurement, understanding, action plan
Discover what your diagnosis contains

Day / night sound levels
You visualize levels, peaks, and sound stability over time.
Identification of nuisances and their causes
Traffic, neighbors, equipment (ventilation, HVAC), construction, urban activities… you know what really matters.
Action recommendations
Concrete solutions to improve the situation: simple gestures, adjustments or targeted work.
What you gain
Buyer
- You secure your purchase with a simple indicator (A → G) and a detailed report.
- You avoid buying a property that "sounds good" during the visit but becomes unbearable at night.
Seller
- You valorize a quiet property with neutral and readable proof.
- You streamline the negotiation by providing a factual document, like a technical diagnosis.
Owner or tenant
- You understand where the problem comes from and what to do, instead of multiplying hypotheses.
- You have a useful support to prioritize work or frame a discussion (co-ownership, neighborhood, manager).
A technology designed to inform, not to monitor
Your privacy is our priority
No camera
Sonalyze uses no camera to preserve occupants' confidentiality.
Data in France
Hosting and processing are operated in France in compliance with GDPR.
Data minimization
Data is processed to produce indicators and a diagnosis, with a data minimization logic.
Framed approach
You keep control: APD is a framed and time-limited approach.
Did you know?
Noise is associated with non-auditory effects, including sleep and cardio-metabolic risks, according to WHO and EU.
Frequently asked questions
How long does it need to be measured to be reliable?
24h provides a complete picture, day and night. 48h improves robustness. To capture the most complete variability (weekend, traffic, neighborhood), 1 week is ideal.
Does it work if the property is empty?
Yes: APD measures the real sound environment (outside, common areas, building equipment) even without occupants. If you also want to analyze "in-situation" uses (TV, kitchen, etc.), we recommend a measurement under normal conditions.
What does APD measure exactly?
It measures sound levels (evolution over time, peaks, day/night) and identifies the main sources of noise (traffic, neighbors, equipment, etc.). You receive a synthetic score + a detailed analysis and recommendations.
Does APD replace an acoustic expertise?
No: APD is a factual, quick and actionable diagnosis. For a regulatory study or very technical expertise (normalized isolation, heavy work), an acoustician remains the reference.
Can I use the report to negotiate a price?
Yes, it's an excellent discussion support: it objectifies the quietness (or nuisances) and documents the causes. It helps justify a negotiation, a work plan or a valorization of a quiet property.
What happens if the property is poorly rated?
You're not "stuck": the report highlights critical moments and probable causes. Above all, it proposes a prioritized action plan (gestures, adjustments, work) to improve the situation.
How do you protect occupants' privacy?
"Privacy-first" approach: no camera, time-limited measurement, diagnostic-only purpose. Results are presented as indicators and nuisance categories, not as a surveillance tool.
In which cities do you operate?
We work throughout France. For other European countries, we can operate via device shipping and remote support depending on the context.
Ready to measure your home's tranquility?
Order your Acoustic Performance Diagnosis now