[squeak-dev] Squeak and Sound

tim Rowledge tim at rowledge.org
Wed Jan 13 18:48:30 UTC 2021

> On 2021-01-13, at 10:10 AM, Peter Crowther <peter at ozzard.org> wrote:
> On Tue, 12 Jan 2021 at 19:08, tim Rowledge <tim at rowledge.org> wrote:
> > I'm not a piano player, but, what I vaguly remember as middle C does not seem to be middle C and the lower third of the keyboard seems silent though probably because the frequency is too low.
> The claimed middle C is set to 440Hz, which I'm fairly sure is correct. It sound about right to me when played but I am not a musician.
> If true, you're a sixth high.  You want A440 to be the A above middle C.  C isn't far off 256Hz (though don't use that as a reference!)

You're right. I did point out I'm not a player...

AbstractSound sets middle C to 261.6265Hz, which agrees with https://en.wikipedia.org/wiki/Piano_key_frequencies I guess an interesting question is whether anyone has both an oscilloscope and a Squeak system to compare and validate?

tim Rowledge; tim at rowledge.org; http://www.rowledge.org/tim
Law of Logical Argument: Anything is possible if you don't know what you are talking about.

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