[sdiy] DIGISYNTONE/ DM8520??? SCALES FROM DIVIDERS???

[Scott Gravenhorst]

Dan Snazelle <subjectivity at hotmail.com> wrote:
>
>but, togs ARE IMPOSSIBLE to get.

Sure, but they are simple and can be implemented in available technology.  I'm certain a small FPGA
could do it - in fact, a programmable chip would allow any manner of scale, western, eastern,
Martian, etc.  FPGAs typically have LOTS of output pins and LOTS of flipflops.  An FPGA, based on
static RAM, can be reprogrammed as you need it.

http://www.em.avnet.com/evk/home/0,4534,CID%253D46501%2526CCD%253DUSA%2526SID%253D32214%2526DID%253DDF2%2526LID%253D32232%2526BID%253DDF2%2526CTP%253DEVK,00.html?SUL=spartan3a-evl

watch the line wrap, it's one URL.  This board sells for $35, comes with programming software. 
There is a connector with about 28 I/O pins connected to the FPGA.  You could provide a 24 note top
octave scale output with this (quarter tone based eastern scales).

>
>however, there are some schematics in EN that DONT use TOG's (just some obsolete counters)
>
>i figured with all the brilliant minds on here, someone must have 
>done projects with DIVIDERS.... 

A suboctave or subharmonic is generated by a divider or dividers.  That's just one example, there
are others.

>
>
>and there is very little data out there on getting non INTEGER values (non whole tones)
>
>
>thanks
>
>--------------------------------------------
>check out various dan music at:
>
>http://www.myspace.com/lossnyc
>
>
>http://www.soundclick.com/lossnyc.htm
>
>
>http://www.indie911.com/dan-snazelle
>(or for techno) http://www.myspace.com/snazelle
>
>
>> From: harrybissell at wowway.com
>> To: subjectivity at hotmail.com; barryklein at cox.net; synth-diy at dropmix.xs4all.nl
>> Subject: Re: [sdiy] DIGISYNTONE/ DM8520??? SCALES FROM DIVIDERS???
>> Date: Tue, 9 Sep 2008 07:14:47 -0500
>>
>> Can you say "TOG" ? (top octave generator) :^)
>>
>> Take a high frequency clock and divide by different ratios
>> to get equally tempered scales...
>>
>> (or it could be ~any~ scales but most were designed to do
>> "western" music)
>>
>> H^) harry
>>
>>
>>
>> On Tue, 9 Sep 2008 11:31:23 +0000, Dan Snazelle wrote
>>> reading through electronotes and i was reading about PROGRAMMABLE
>>> dividers which when used with a diode matrix, allow for creating
>>> scales....they mention a DM8520...long obsolete...any alternatives?
>>> any old EN guys on here want to help me open up the divider can of worms?
>>>
>>> they keep mentioning something cALLED THE DIGISYNTONE
>>>
>>> looking for ways of creating lots of differerent notes...some whole
>>> tone, some not.
>>>
>>> thanks
>>>
>>> --------------------------------------------
>>> check out various dan music at:
>>>
>>> http://www.myspace.com/lossnyc
>>>
>>> http://www.soundclick.com/lossnyc.htm
>>>
>>> http://www.indie911.com/dan-snazelle
>>> (or for techno) http://www.myspace.com/snazelle
>>>
>>>> From: barryklein at cox.net
>>>> To: synth-diy at dropmix.xs4all.nl
>>>> Date: Mon, 8 Sep 2008 22:33:48 -0700
>>>> Subject: [sdiy] E-Z Hooks?
>>>>
>>>> Ok, what is the deal with EZ Hooks?
>>>> Why are they so expensive?
>>>> So much so that I feel like calling some guys in China to make some for me
>>>> so I can start a company....
>>>> Any patents surely are expired....
>>>>
>>>>
>>>> Barry
>>>>
>>>> _______________________________________________
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>>>> Synth-diy at dropmix.xs4all.nl
>>>> http://dropmix.xs4all.nl/mailman/listinfo/synth-diy
>>>
>>> _______________________________________________
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>>
>>
>> Harry Bissell & Nora Abdullah 4eva
>>
>
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-- ScottG
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-- Scott Gravenhorst
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