Klarinet Archive - Posting 000454.txt from 2000/08

From: Bill Hausmann <bhausmann1@-----.com>
Subj: Re: [kl] Tuning: let's get it sorted out
Date: Wed, 16 Aug 2000 21:49:23 -0400

At 10:06 PM 8/16/2000 +0100, Tony Pay wrote:
>On Wed, 16 Aug 2000 09:03:44 -0400, bhausmann1@-----.com said:

>> That depends upon the quality of the digital piano. Cheap keyboards
>> have relatively short samples, and the periodic nature is very clearly
>> heard during the decay of a sustained note. This is not anywhere near
>> as noticeable in better units.
>
>This is a misunderstanding. 'Periodic', in the context in which I was
>speaking, means that the waveform in one wavelength is just like the
>waveform in the next wavelength. So the repetition is 440 times a
>second at the tuning 'A', for example.
>
>'Periodic' in that sense means that the overtones are whole number
>multiples of the fundamental.
>
>The 'periodic nature' that you find very clear in the cheap keyboards is
>over a much longer time scale, and wasn't what I was talking about.
>
I may be wrong about this, but I don't think the overtones are exact
multiples of the fundamental. And if that is true, you can't just sample
one wavelength and repeat it. Also, I believe the smaple for the attack is
separate from the decay, and variable depending on how hard the key is
struck. These clever engineers have thought of almost everything!

>...OK, we need to talk to someone who knows more, so that we can both learn
>more.
>
Agreed.

Bill Hausmann NEW ADDRESS: bhausmann1@-----.com
451 Old Orchard Drive http://homepages.go.com/~zoot14/zoot14.html
Essexville, MI 48732 ICQ UIN 4862265

If you have to mic a saxophone, the rest of the band is too loud.

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