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Herwin Gunawan


We just start using SONarchitect for Building Noise Control Consultation. It makes our job lot easier and faster. We can do comprehensive building analysis and design with SONarchitect. We can integrate our building noise control design and our architectural acoustics design. So our client can have a better understanding about what they will hear in their room. 

Before using SON architect we have to calculate transmission loss paneling one by one. After that we analyze noise path and calculating noise prediction. We have to do calculation with several software to get what we want.

We are very happy because we can do more comprehensive work faster with accurate result. And the most important it makes our clients happy too. 

Herwin Gunawan

Head Consultant

ALTA integra


The Swiss Society of Engineers and Architects (SIA) is Switzerland’s leading professional association for construction, technology and environment specialists. With around 15,000 members from the fields of engineering and architecture, the SIA is a highly professional and interdisciplinary network whose central aim is to promote sustainable and high-quality design of the built environment in Switzerland.

Sound of Numbers has agreeed with SIA the inclusion of the Database in the document D 0189 into the SONarchitect Catalog.

With this data, SONarchitect has more than 1200 materials in the database!

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