Predicting the Acoustical Performance of a Sound System by Computer
The EPIDAURE computer program which calculates room impulse responses using the cones method developed by the CSTS has been adapted to predict the acoustical performances of any sound system. The transfer function from the input signal to the listener is calculated from the entire real sound field without the approximations which can be found in other programs. Input data are the 3D geometry from architect's drawings and the surface absorption coefficients, the position and shifting in site and azimuth of the speakers, their directivities, their sound pressure levels at 1m, and their time delays. Echgograms at points located on a grid over audience surfaces are calculated. Output data are displayed in color maps of sound pressure level and speech intelligibility on the audience surfaces.
Click to purchase paper or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!
This paper costs $20 for non-members, $5 for AES members and is free for E-Library subscribers.