Room acoustics — design and improvement in Berlin and beyond
How a room sounds determines how well it serves its purpose. It affects how clearly speech is understood, how well one can concentrate, whether the space feels musical, whether conditions are good for listening to music, speech, or film — and, in the most general sense, how pleasant it is to spend time there. Thoughtful room acoustic design creates exactly this quality, from the first concept through to construction.
Overview
Rooms rarely sound good on their own. Whether office, restaurant, school, meeting room, or concert hall — the acoustic quality inside determines whether conversations and musical performances succeed, or whether a persistent noise level makes working and staying there exhausting. Room acoustics is concerned precisely with these properties within a space: the formation of the sound field, including reverberation, speech intelligibility, and further acoustic parameters. The range of building types involved can be very diverse, from a heritage-listed old building to an open new-work office to a cultural venue. This page is addressed to architects, planners, clients, and operators who wish to newly design a space or to meaningfully improve an existing one.
What room acoustics does inside a space
Sound does not only travel directly from source to ear; it is also reflected repeatedly by walls, ceiling, and floor. These reflections overlap the original signal and decay with their respective delays. The most prominent measure of this is the reverberation time — the duration until the sound pressure level drops significantly (by 60 dB) after the source has stopped. A reverberation time that is too long makes speech sound blurred and raises the overall noise level; one that is too short can make a space feel lifeless and dull.
This behaviour can be controlled through sound-absorbing, diffusing, and reflecting surfaces. Porous absorbers such as textile finishes, micro-perforated elements, or specialist ceiling baffles extract sound energy from the room in a targeted way, while diffusing surfaces ensure an even distribution. What is decisive is matching these measures to the actual use of the space, because a recording studio has different requirements from a classroom or a reception area.
Standards and guidelines as a framework
For acoustic quality in interior spaces, the most important standard in Germany is DIN 18041. It defines target values for reverberation time depending on the type of use and room volume, and distinguishes between rooms for communication over medium and greater distances and rooms where the primary goal is to limit the sound pressure level. Where occupational health at the workplace is concerned, the workplace guideline ASR 3.7 applies, helping employers meet the requirements of the German Workplace Ordinance (ArbStättV). For multi-person and open-plan offices, VDI 2569 provides supplementary criteria — for instance on the spatial decay of speech and the acoustic separation of workstations.
The measurement basis for capturing room acoustic conditions is DIN EN ISO 3382, which is used to determine reverberation time and further room acoustic parameters from the room impulse response. Good design takes the standards as a tool rather than a rigid framework, so that particular design aspirations also retain their space.
Typical spaces and building types
My office is in Berlin, but projects are supported throughout Germany and beyond. The tasks often resemble one another. Late 19th century rooms with high ceilings and hard surfaces are acoustically demanding and frequently listed, which permits only restrained interventions. In new buildings, open floor plans, glass, and exposed concrete produce long reverberation times and a high ambient sound level. Whether co-working, hospitality, educational facilities, or other uses — each task calls for its own answer that brings use, design, and budget together.
From the first conversation to a realisable concept
It always begins with the question of how a space is used and how it should sound. For existing rooms, a measurement establishes the baseline and makes the problem tangible. From this, an acoustic concept with concrete measures is developed, which can be verified in a 3D simulation before construction begins. This makes the effort and effect calculable, and acoustics become a natural part of the architectural design rather than something that has to work against it after the fact.
Frequently asked questions
What does room acoustic consulting in Berlin cost?
It depends on the scope. An initial assessment for a single room is considerably less expensive than a full design for multiple rooms including measurement and simulation. Services can be agreed on a project-specific fixed fee or according to HOAI. A short conversation about the space, its use, and the goal is the sensible starting point — from that, a concrete proposal follows.
How is reverberation time measured?
Reverberation time is determined from the room impulse response in accordance with DIN EN ISO 3382. The room is excited with a defined signal and the time decay of sound in several frequency bands is evaluated. From the measurement, the reverberation time and, if needed, further acoustic parameters can be determined.
Which standard applies to my project?
For acoustic quality in interior spaces, DIN 18041 is generally the key standard — for example in schools, offices, or assembly rooms. For multi-person offices, VDI 2569 is additionally consulted; at the workplace, ASR 3.7 applies as well. Which standard takes precedence depends on use and room size.
Can room acoustics be retrofitted in existing buildings?
Yes. Many projects concern existing rooms that are too reverberant or too loud. A measurement establishes the baseline, and on that basis absorptive measures at the ceiling, walls, or as freestanding elements can be planned precisely and in a design-appropriate way.
When should acoustic design begin?
As early as possible. If room acoustics are considered during the design phase, measures can be integrated elegantly into the architecture and costs kept low. A later correction is possible, but usually more laborious and more visible.
Discuss your project
Are you planning a new build, a renovation, or would you like to improve the acoustics of an existing space? Describe your room and your goal briefly — together we will find the right approach.
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