Room acoustics measurement — in Berlin and beyond
Before the acoustics of a space can be improved in a targeted way, the baseline must be known. A measurement objectively captures how a room sounds and creates the reliable foundation for every planning decision.
Overview
The subjective impression alone is rarely sufficient to assess a room acoustically. A measurement makes the decisive parameters visible and comparable — from reverberation to speech intelligibility. Whether as a baseline survey before a conversion, to verify results after a measure has been carried out, or as proof that requirements are being met — the results are clearly documented. This page is part of the room acoustics area and is addressed to all those who wish to gain clarity about the acoustic quality of a space.
What is measured
The focus is on reverberation time — the duration until the sound pressure level drops significantly after the source has stopped. It is determined from the room impulse response by exciting the room with a defined signal and evaluating the time decay of sound in several frequency bands.
From the same measurement, further parameters can be derived as needed — including speech intelligibility (STI) as well as measures for clarity and definition. This produces a complete picture of how a room actually sounds.
Standards and procedures
The measurement basis is DIN EN ISO 3382, from which reverberation time and further room acoustic parameters are determined from the room impulse response. Additionally, the sound absorption coefficient of materials and building components can be determined per DIN EN ISO 354 in a reverberation chamber.
Measurements are carried out with calibrated equipment at multiple positions and with documented boundary conditions. This is the prerequisite for results that are verifiable and robust.
What the results are used for
A measurement establishes the baseline and makes an acoustic problem tangible. It provides the foundation for planning measures, serves to verify results after their implementation, and can demonstrate that required values are being met. Assumptions are thus replaced by verifiable figures on which decisions can be based.
Frequently asked questions
How does a room acoustic measurement proceed?
The room is excited with a defined signal; from the recorded room impulse response, reverberation time and further parameters are determined in several frequency bands. Measurements are taken with calibrated equipment at multiple positions. Depending on the room size, an on-site appointment takes several hours.
Which parameters can be measured?
The focus is on reverberation time per DIN EN ISO 3382. From the room impulse response, further parameters can be derived as needed — including speech intelligibility (STI) as well as measures for clarity and definition. The sound absorption coefficient of materials and building components can additionally be determined per DIN EN ISO 354 in a reverberation chamber.
When is a measurement worthwhile?
Whenever the current acoustic state needs to be known. Typical situations are a baseline survey before a conversion, verification of results after a measure has been carried out, or demonstrating that required values are being met.
Discuss your project
Would you like to have the acoustic condition of a space assessed — as a baseline survey, to verify results, or as proof? Describe the room and your goal briefly — together we will determine the appropriate scope of measurement.
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