Acoustic Computer Modelling: A Case Study to Compare Predictions by CATT and Odeon with Measured Results

摘要

This paper presents a case study for the prediction of room acoustic parameters in a church auditorium using both CATT and ODEON software, and compares the predictions with the same parameters determined from analysis using the measured impulse responses. The church auditorium included predominantly hard surface finishes and required acoustic treatment for multipurpose use. Impulse response measurements were made in the space using swept sine and MLS techniques. CATT and ODEON models were built for predictions using as-built drawings. Comparison of predicted and measured acoustic parameters indicated good agreement of STI and RT when the appropriate input parameters for each respective software package were used.