Opera Room Acoustic Measurement System


Bob Essert and Eckhard Kahle, while both at Artec in 1996, shared a paper on acoustics measurement and analysis tools.

Paper presented at the 3rd joint meeting of the Acoustical Society of America and the Acoustical Society of Japan in Honolulu, 4-6 December, 1996.

Toward an Opera Room Acoustic Measurement System

“We are convinced that the future of acoustical measurement, analysis and evaluation must include a strong perceptual component. In performing arts acoustics, perception is everything‚ĶOur next generation of measurement and analysis tools must be a capable platform for perceptual judgments.”


Recent development of PC based acoustical measurement systems has allowed separation of hardware and software development. It is often no longer necessary to buy new hardware in order to add new features, but only to add or change the software algorithm. Having measured and stored room impulse responses (mono, directional, binaural, 3D) one can use the same raw data later with new computer analysis routines. The CHRG room measurement project and the Alex round robin test have drawn attention to the differences between systems; different measurement teams have a variety of goals and priorities. We wish to measure and analyze far more than reverberation times. On the one hand, we need to provide specifications that will guarantee comparable data for certain standard measurements, and on the other hand, we need to accommodate future development. Starting with a superset of goals, we outline an approach to defining which parts of the system should be subject to standards, still retaining the flexibility for unique or experimental measures.

To read the full article please click the link below.

Toward an Opera Room Acoustic Measurement System – Essert / Kahle