Resources
Everything you need to understand acoustic treatment and treat your professional spaces properly.
Solutions by space Noise is the number one complaint in hotel reviews. A zone-by-zone hotel acoustics guide: lobby, restaurant, meeting rooms, spa, and the Atout France criteria.
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Solutions by space How loud is a restaurant? Real-world readings, decree 2017-1244 (102 dB), neighbourhood noise, labour law: thresholds, risks and solutions.
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Solutions by space Meeting room that echoes, muddy sound on video calls? Target RT, clap test, treatment order: the ACOUSTELIO field method for sound that is finally clear.
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Solutions by space Reverberation of 4 to 8 s, inaudible instructions, the French decree of 25 April 2003: the guide to treating a sports hall zone by zone, budget included.
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Solutions by space Reverberation time of 0.4 to 0.8 s, the French decree of 25 April 2003, budget per classroom: the guide to treating the acoustics of a classroom that echoes.
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Acoustic treatment Hearing fatigue: the mechanism, symptoms (tinnitus, muffled ears), causes in open-plan offices and restaurants, recovery times and prevention at the source.
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Material & standards Acoustic foam: what it really absorbs, why it burns, what fire regulations require in public buildings and what to use instead in professional spaces.
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Material & standards The 80, 85 and 87 dB(A) thresholds, employer obligations, the NF S31-080 standard, legal risks: the 2026 guide to workplace noise regulations in France.
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Acoustic treatment How do you soundproof a room? A 3-question diagnosis, the real insulation and treatment solutions, budgets compared and the false fixes to avoid.
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Measurement & metrics The decibel scale explained: a chart from 0 to 140 dB with concrete examples, hearing risk thresholds and the real gains from acoustic treatment.
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Acoustic treatment Why your room echoes and how to reduce reverberation: surfaces to treat, wall panels, ceiling baffles, mistakes to avoid. A field-tested guide.
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Acoustic treatment Acoustic treatment or soundproofing? Definitions, αw and NRC coefficients, real cases in restaurants, offices and public buildings to pick the right fix.
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Measurement & metrics Definition of the sound absorption coefficient (αs, αw, NRC), ISO 354 measurement, classes A to E and a full materials chart, from concrete to PET felt.
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Measurement & metrics Reverberation time (RT60) measures how long sound persists in a space. Sabine formula, measurement, target values by space and an action plan.
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Installation & sizing Adhesive, clips, rails or cables: how to mount an acoustic panel on drywall, concrete, brick or the ceiling. Method by surface, tools and mistakes to avoid.
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Solutions by space Why your restaurant is too loud and how to fix it: the Lombard effect, sound levels in dB, solutions ranked by effectiveness, real-world budgets.
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Solutions by space Open plan office noise: INRS and Ifop figures, NF S31-080 targets by activity and ranked solutions to restore focus and productivity.
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Material & standards EN 13501-1 standard: euroclasses A1 to F, smoke s1 to s3, droplets d0 to d2, M0 to M4 equivalences and public-building requirements. The guide to reading a fire test report.
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Material & standards What is PET acoustic felt? Manufacturing, NRC absorption, comparison with foam, rock wool and wood, limits and maintenance: the complete guide.
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Installation & sizing How many acoustic panels for your room? The 15-30% rule, the Sabine formula and 3 worked examples to size it right, without over-covering.
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