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From: "Phil Allison"
References: <firstname.lastname@example.org> <email@example.com>
Subject: Re: Acoustic Feedback reduction
X-Newsreader: Microsoft Outlook Express 5.50.4522.1200
Date: Sun, 12 Jan 2003 12:09:33 +1100
NNTP-Posting-Date: Sun, 12 Jan 2003 11:59:11 EST
Organization: Telstra BigPond Internet Services (http://www.bigpond.com)
"Nico Coesel" wrote in message
> I used to work for a company which installed a lot of PA systems in
> churches. We either used frequency shifting
** The Polyfusion unit or another ?
or a Behringer 'feedback
> destroyer'. One of the problem with feedback is that it highly depends
> on how many people are in the church. The Behringer units sometimes
> where out of 'bands' to suppress enough. A graphic equalizer doesn't
> have enough precision. Besides, in many cases wireless microphones are
> being used. You need an adaptive system to get rid of feedback and we
> always tested the system with RASTI. Using an equalizer can have a
> negative effect on the test. The sound may be clear, but the spoken
> word can still be difficult to understand.
** So the shifter was the best choice ?
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