sources for optimal speaker placement in auditoriums?

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Subject: sources for optimal speaker placement in auditoriums?
From: Michael J Epstein <auditorylist3646@xxxxxxxxxxxxxxxxxxx>
Date: Wed, 19 Oct 2005 13:22:10 -0400
Delivery-date: Wed Oct 19 17:52:10 2005
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Can anyone recommend sources on optimal speaker placement in auditoriums?

Thanks.

Mike

References:
- acoustic foam and soundproofing
  - From: Virginie van Wassenhove
- Re: acoustic foam and soundproofing
  - From: Mike Ravicz