FREQOUT Notes?
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I have a student making a BS2 project with the freqout command.
Her Beethoven's 5th project needs more notes than are illustrated
in the FREQOUT explanation in the BS2 command referrence.
We need to find the values for the notes, A,F, and B. Has
someone figured those out? We're using the command as follows
FREQOUT 12,255,note,note-8
Paul
Her Beethoven's 5th project needs more notes than are illustrated
in the FREQOUT explanation in the BS2 command referrence.
We need to find the values for the notes, A,F, and B. Has
someone figured those out? We're using the command as follows
FREQOUT 12,255,note,note-8
Paul
Comments
withstanding).
However, look at http://www.phy.mtu.edu/~suits/notefreqs.html
Al Williams
AWC
* 8 channels of PWM
http://www.al-williams.com/awce/pak5.htm
>
Original Message
> From: verhap@o... [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=EStjzeX-4p0Gc8_Bhz05tV7_Br15uYdzT5LUnggPYTyq8_C90QRB_cCDzedVas1fB5ktwuf6LZn2UP_rMU_S860]verhap@o...[/url
> Sent: Thursday, May 02, 2002 11:39 AM
> To: basicstamps@yahoogroups.com
> Subject: [noparse][[/noparse]basicstamps] FREQOUT Notes?
>
>
> I have a student making a BS2 project with the freqout command.
> Her Beethoven's 5th project needs more notes than are illustrated
> in the FREQOUT explanation in the BS2 command referrence.
>
> We need to find the values for the notes, A,F, and B. Has
> someone figured those out? We're using the command as follows
>
> FREQOUT 12,255,note,note-8
>
> Paul
>
>
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>Her Beethoven's 5th project needs more notes than are illustrated
>in the FREQOUT explanation in the BS2 command referrence.
>We need to find the values for the notes, A,F, and B. Has
>someone figured those out? We're using the command as follows
> FREQOUT 12,255,note,note-8
>Paul
Hi Paul and student,
One way to calculate the frequencies of the 12 tone chromatic scale
is to use the powers of the number,
Z=1.059463
which is the twelfth root of 2. For example start at A440 on the
musical scale. C523 is 3 steps above that, and sure enough
440*Z*Z*Z = 523.28628
Of course, the twelfth power is the octave
440*Z*Z*Z*Z*Z*Z*Z*Z*Z*Z*Z*Z = 880
B is two steps
440*Z*Z=494
F above A440 is 8 steps
440*Z*Z*Z*Z*Z*Z*Z*Z = ??
or, F below A440 is 4 steps down, which can be found by dividing by Z
440/Z/Z/Z/Z = ??
I have a blurb on how to make musical scales on the stamp using math
posted at..
http://www.emesystems.com/BS2math1.htm#musical
The point there is an illustration of how to multiply times numbers
like Z=1.059463.
-- regards,
Tracy Allen
electronically monitored ecosystems
mailto:tracy@e...
http://www.emesystems.com
>>I have a student making a BS2 project with the freqout command.
>>Her Beethoven's 5th project needs more notes than are illustrated
>>in the FREQOUT explanation in the BS2 command referrence.
>>We need to find the values for the notes, A,F, and B. Has
>>someone figured those out? We're using the command as follows
>> FREQOUT 12,255,note,note-8
>>Paul
>
>Hi Paul and student,
>
>One way to calculate the frequencies of the 12 tone chromatic scale
>is to use the powers of the number,
> Z=1.059463
>which is the twelfth root of 2. For example start at A440 on the
>musical scale. C523 is 3 steps above that, and sure enough
> 440*Z*Z*Z = 523.28628
>Of course, the twelfth power is the octave
> 440*Z*Z*Z*Z*Z*Z*Z*Z*Z*Z*Z*Z = 880
>
>B is two steps
> 440*Z*Z=494
>F above A440 is 8 steps
> 440*Z*Z*Z*Z*Z*Z*Z*Z = ??
>or, F below A440 is 4 steps down, which can be found by dividing by Z
> 440/Z/Z/Z/Z = ??
This is equal tempered tuning. Is this really suitable for
Beethoven's 5th, or should some well tempered or mean tempered tuning
be used instead?
> Beethoven's 5th, or should some well tempered or mean tempered tuning
> be used instead?
I'm an electronics teacher, not a music teacher!!!
[noparse];)[/noparse]
We're were pulling the notes off of a piece of sheet music and
that's the notes they had.
Paul
>> Beethoven's 5th, or should some well tempered or mean tempered tuning
> > be used instead?
>I'm an electronics teacher, not a music teacher!!! [noparse];)[/noparse]
I just learned something about temperament (that it is spelled with
an "a"), and that well tempered is not the same as equal tempered. I
guess other people are confused about it too--I am strictly an
amateur musician, and I probably wouldn't be conscious of the slight
differences in the tunings.
If your wants, they could use the stamp to explore peoples' acuity as
a listeners?!
Here are a couple of links that go into the insanely convoluted
history, math, physics and aesthetics of the musical scale.
http://www.jimloy.com/physics/scale.htm
http://www.rdrop.com/users/tblackb/music/temperament/stoess.htm
A google search turns up oodles of links.
-- best regards
Tracy Allen
electronically monitored ecosystems
http://www.emesystems.com
mailto:tracy@e...