Reply-To: "Kevin Aylward"
From: "Kevin Aylward"
Subject: Re: Acoustic Feedback reduction
X-Newsreader: Microsoft Outlook Express 6.00.2800.1106
Date: Thu, 16 Jan 2003 13:51:00 -0000
NNTP-Posting-Date: Thu, 16 Jan 2003 13:51:04 GMT
Phil Allison wrote:
> "Kevin Aylward" wrote in message
>> John Woodgate wrote:
>>> I read in sci.electronics.design that Kevin Aylward
>>> wrote (in
>>> ) about
>>> 'Acoustic Feedback reduction', on Wed, 15 Jan 2003:
>>>> The reality is that you need to shift by a fixed ratio, not a fixed
>>>> frequency,as in speeding/slowing a tape recorder.
>>> Pay attention, Aylward, or sit at the front of class! (;-) Fixed
>>> ratio shift doesn't scupper the feedback, or not nearly as well.
>> I never said it did.
> ** Read you own post - that is what it means.
> I was only commenting on the fact that if you are
>> going to shift frequencies such that you cant really tell the
>> difference, you need to move *everything* by the same ratio.
> ** A pitch shift of even 5% is VERY audible.
Not if *everything* is moved up/down. Its just the same as playing in a
different key. If you played a record one day to someone. Then played it
again but up a few tones, most won't notice. However, if I'm actually
singing, I would because my range is a bit limited, I usually have to
bring most songs down a bit to be able to reach the respective high
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