Klarinet Archive - Posting 000330.txt from 2004/11

From: "David Renaud" <manonrivet@-----.ca>
Subj: Re: [kl] pitch standard
Date: Mon, 8 Nov 2004 15:42:36 -0500

It is an exponential curve, it is not the same throughout the scale.
I am simplifying it to a linear estimate.

It so happens..........

At A440 1 HZ is 4cents
A442 is 8 cents sharper, yes.

There are 100 cents between any 2 chromatic notes always
anywhere in the scale.
But 1 cent represents and exponentially increasing number of Hz
as we go up the scale.
A220 to A440 octave is 220 Hz change
A440 to A880 octave is 440 Hz change
A880 to A1760 is 880 Hz change....4 times the number of Hz per cent.

Cheers
Dave Renaud

----- Original Message -----
From: <GrabnerWG@-----.com>
To: <klarinet@-----.org>
Sent: Monday, November 08, 2004 3:31 PM
Subject: Re: [kl] pitch standard

> In a message dated 11/7/2004 12:49:53 PM Central Standard Time,
> manonrivet@-----.ca writes:
> <<A definition was requested of a cent...........................
>
> There are 100 cents between any two chromatic notes.
> It happens that at A440, 1hz is 4 cents.>>
>
> Question: is this uniform throughout the scale, or does it change if you
are
> much higher or lower?
>
> Or is 1hz always 4 cents?
>
> <<A439 is 4 cents flat.>>
>
> Is A=442 therefore 8 cents sharper than A=442? Is A=444 therefore 14
cents
> sharper? If so, this doesn't seem to correlate with my tuner when I
calibrate
> it higher, for example 442 instead of 440.
>
> Please excuse me if these are simple questions. I simply don't know.
>
>
> Walter Grabner
> www.clarinetXpress.com
> World-class clarinet mouthpieces
>
>
> ---------------------------------------------------------------------
> Klarinet is a service of Woodwind.Org, Inc. http://www.woodwind.org
>

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