AES Amsterdam 2008 Saturday, May 17, 16:00 — 17:00
ELECTRO ACOUSTIC SLIDE RULE
In the transition of the seventies to the eighties in the previous century, the programmable calculators could be applied for the design of a sound reinforcement system. The disadvantage was that you were not in the position to make quick changes in the parameters, e.g., the reverberation time of the room, the directivity factor of the sources, and the speech intelligibility based upon the development work of Peutz as he had published in a paper during the AES convention in 1971, New York.
A slide rule reduces these disadvantages in a dramatically way. By sliding you were able to make an estimation of the results (costs) and the margins you worked in. Peter Swarte will demonstrate some examples of real situations with the help of this slide rule. The results are still valid and based upon the statistical approach of sound in (semi) enclosed rooms.
Furthermore the relationship between several parameters like acoustic power, directivity, diffuse sound, direct sound, absorption, and reverberation are part of the demonstration.
Last Updated: 20080613, tendeloo