Blog/Position

The introduction of railway stations into the urban landscape has led to greater user mobility, particularly between home and work. However, their location has also brought them closer to residential areas, raising the issue of noise management with trains passing...

For several years now, the governments of Canada and Quebec have been planning infrastructure projects to improve many of Quebec's education facilities. A substantial budget has been provided to create healthy, stimulating living and study spaces that meet the needs...

If you operate a quarry or sandpit, or live near one, this article explains how A7hz can help you manage noise and vibration. Sources of noise in quarries. Operating a quarry or sandpit undeniably implies the use of practices that cause noise and may exceed regulatory...

Congratulations to Nouvel Horizon Saint Laurent for winning the Génie-Voirie award for sustainable development! The award was presented by the Association des constructeurs de routes et grands travaux du Québec (ACRGTQ) and Constructo during the 2023 edition. The...

Congratulations to CRT Construction for receiving the Génie-Voirie award for sustainable development! This prize was awarded by the Association des constructeurs de routes et grands travaux du Québec (ACRGTQ) and Constructo during the 2022 edition. The winning company...

What a reward! We worked on 4 of the 10 winning projects of the Award of Architecture Excellence of the Ordre des Architectes du Québec, including the two Great Award of Architecture Excellence ! The Ordre des Architectes du Québec professional association has...

A few years ago at A7hz, we tested several clapboard designs for simple reverberation measurements: here are our findings! A clapper is made of two pieces of wood with flat surfaces and hinges, emitting a loud and short noise when closed. For acoustics enthusiasts,...

Did you know that living in a quiet environment increases our life expectancy? This Friday, April 7, 2023, we will celebrate World Health Day and in particular hearing health! According to a study published by the WHO, environmental noise impacts our health, with such...

📢 Atelier 7hz - Acoustique & Vibrations will be exhibiting at the 15th edition of Americana - one of the largest environmental events in North America - organized by Réseau Environnement! Visit us at booth 227 in the event's exhibit hall to chat. ✨ The premier...

Today we celebrate the International Day of Happiness! The definition of happiness is different for everyone but we take advantage of this day to focus on the places we frequent on a daily basis. We believe that feeling good in the place we live, or work in, is a...

BimWorld 2023 This year's edition of BIMWorld 2023 will take place on April 5 and 6 in Paris, France, and will be an opportunity for construction and real estate professionals to discuss all the challenges raised by the industry's constant evolution. What is BIM This...

Ground-borne vibrations Vibration impact studies are frequently carried out near railway projects as they are part of the urban and city landscape. Their location and their daily use generate vibrations which can be perceived by the locals and cause significant noise...

Like public pipeline repairs, many types of works can be a source of vibrations and therefore require special attention in order to preserve the integrity of structures and the safety of local residents.Indeed, vibration and sound studies must be carried out prior to...

When acoustics mingle with history! In Mexico, it is possible to hear a sound similar to the cry of the Quetzal - a sacred bird of the Mayas - if you clap your hands at the foot of the pyramid of Kukulcán. This amusing fact is however not due to chance, since...

For several years in Canada, new residential projects must integrate in their construction criteria of quality and requirement always higher in order to meet the needs of the residents and must thus take into account the regulatory constraints in acoustics. A7hz and...

The quality of Quebec educational system is a hot topic today after the announcement of Minister Bernard Drainville's education plan, right after the International Education Day at the end of January. We need to consider the quality of our schools, and in particular...

Atelier 7hz discussed with ChatGPT, and the AI recommends acousticians!We already use artificial intelligence to train our monitoring systems to detect specific sound events (plane passing, horns, etc.). ChatGPT's ability to generate constructed text is impressive!...

Update to our ClapReverb app on the App Store! Some of you have reported stability issues on recent phones (iOS 16.0 and later).This update is lightweight and compatible with all versions of iOS! If you are unfamiliar with ClapReverb, this is an app for anyone to make...

Have you ever wondered how other planets sound like ?The NASA shared audio recordings from the Perseverance rover on Mars, check it out  Would you be able to tell if a recording comes from Mars ? Probably yes !Mars atmosphere :- is significantly colder than ours, so...

The Government of Quebec is making changes to the Occupational Health and Safety Regulation, which will come into force on June 16, 2023. These measures aim to protect workers because excessive noise exposure can cause increased stress, fatigue, increased work...