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From: firstname.lastname@example.org (Nico Coesel)
Subject: Re: Acoustic Feedback reduction
Date: Sun, 12 Jan 2003 11:06:17 GMT
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NNTP-Posting-Date: 12 Jan 2003 11:06:32 GMT
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"Phil Allison" wrote:
>"Nico Coesel" wrote in message
>> "Phil Allison" wrote:
>> >"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 ?
>> No, a self made one. It works great but it has one disadvantage; the
>> designer of the unit thought 16bit/16kHz ought to be enough. I never
>> got the time to fix that.
> ** This is the first I have *ever* heard of a digital algorithm for
>frequency shifting - how did you do it ?? What DSP chip did you use ?
A -rather old by today's standards- ADSP2181. But I didn't design it.
Someone else did and 'forgot' to document the thing.
>Did you not realise is was so much easier to do analogue?
Depends on what you think is easier. The designer made one simple
board capable of doing numerous functions (depending on software
Reply to nico@nctdevpuntnl (punt=.)
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