MOTM

Harry Bissell did some of this for his original Wiard Miniwave.  One of the
things that he did which was very space efficient was NOT to do scales in
each key, but add a transpose switch.  So, you can have lots off different
types of scales and such all in one key (lets say "C").  they when you want
to change to a different key, you use the transpose feature.  That's much
more efficient that duplicating scaled in various keys as done in the
original EPROM.    Then you can use up all that space for LOTs of different
types of scales.

WARNING:  Shameless plug:  Of course, if you don't want to figure out a
transpose switch for your Miniwave you could always buy a 822 PCB from me.
It supports instant transpose on the fly. :)

Stooge Larry

----- Original Message -----
From: <improv@...>
To: <tentochi@...>
Cc: MOTM List <motm@yahoogroups.com>
Sent: Friday, July 13, 2001 7:34 PM
Subject: RE: [motm] MINIwave is Here!!!


At 8:25 PM 7/13/01, Tentochi wrote:
>I am going to in about 1 1/2 months.  Please send waves and wave ideas to
me
>for inclusion.  I would like to do several.  I am going to do them for
>around $40 a chip.  Does that sound fair?  That includes shipping.

Excellent! I'd like to see more scale quantizing banks, including just
intonation, microtonal scales, etc.
>
>--Shemp
>
>> Now that the Mini-wave is here, who's gonna make some custom
>> eproms for it?
>> It's got that empty slot just waiting for a chip? I have neither the gear
>> nor tech ability to do so, but would love to see some development on this
>> front.
>
>
>
>
>Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/

____________________________________________
Dave Trenkel : improv@...
New & Improv Media
http://www.newandimprov.com
Now available: Minus: Dark Lit
____________________________________________





Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/

I agree with the idea of transposing to conserve space on the EPROM, but that 
only works with the "Greek" diatonic modes and the symmetrical scales (i.e., 
the six note whole tone and eight note diminished). I hope some of the EPROM 
programmers will consider some of the more exoticist modes that I like. 

I enjoy using the Harmonic Minor scale (M2, m3, P4, P5, m6, M7, P8) and a few 
variations of these which involve one or more of the following (m2, M3, +4) 
which have names like: Gypsy Minor, Hungarian Minor (and maybe Arabic Minor, 
or Turkish Minor) -- I forget which names go with which modes. These modes 
would not be transposable since the have odd combinations of minor 2nds and 
augmented 2nds which don't seem to be that useful in anything other than the 
root position (unless someone else knows better?).

I'd also like to see some nice pentatonic modes available too. And I'm also 
in agreement with the other ideas about microtonal and just intonation. I 
intend on having one Miniwave dedicated for CV processing (quantizing) and 
one for audio wave mangling, but I still haven't received mine yet : (

JB

In a message dated 7/13/2001 8:16:56 PM, jlarryh@... writes:

>Harry Bissell did some of this for his original Wiard Miniwave.  One of
>the
>things that he did which was very space efficient was NOT to do scales
>in
>each key, but add a transpose switch.  So, you can have lots off different
>types of scales and such all in one key (lets say "C").  they when you
>want
>to change to a different key, you use the transpose feature.  That's much
>more efficient that duplicating scaled in various keys as done in the
>original EPROM.    Then you can use up all that space for LOTs of different
>types of scales.
>
>WARNING:  Shameless plug:  Of course, if you don't want to figure out a
>transpose switch for your Miniwave you could always buy a 822 PCB from
>me.
>It supports instant transpose on the fly. :)

Great comments JB.  I think it will be great to have the 2nd EPROM full of
the "best of" ideas of all the synth savvy people here on the list.  Kudos
to John Blacet for including the second location.

Larry H

----- Original Message -----
From: <jwbarlow@...>
To: <motm@yahoogroups.com>
Sent: Saturday, July 14, 2001 11:48 AM
Subject: Re: EPROMS Was: [motm] MINIwave is Here!!!


I agree with the idea of transposing to conserve space
on the EPROM, but.......   snip

I'd also like to see some nice pentatonic modes available too. And I'm also
in agreement with the other ideas about microtonal and just intonation. I
intend on having one Miniwave dedicated for CV processing (quantizing) and
one for audio wave mangling, but I still haven't received mine yet : (

JB

What is really scary is how much the case resembles the Dave Bradley's MOTM
synth of doom.
Larry Hendry

----- Original Message -----
From: Gert "Synthi" Jalass <gjalass@...>
To: <motm@yahoogroups.com>
Sent: Saturday, July 14, 2001 11:49 AM
Subject: [motm] Why not buy a Moog on eBay ;-)


This one does probably set a new record :

    http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=1446241009

Gert

The Mini Wave has 8 bit resolution and a 10 volt range.  That makes 10 / 256
= 39 mV steps.  A semitone in 1V/octave scaling is 1 / 12 = 83 mV.  Since
the Mini Wave is used to quantize 12 note equal tempered scales, I must
assume that the range is not truly 10V, but somwhat larger to make the steps
closer to quartertones, or half a semitone, around 83 / 2 = 41.5 mV.

Used as is, the Mini Wave would seem incapable of just intonation.  Best bet
would be to expand your CV to the input, then compress the CV from the
output.  Even if you constrain this to a 2 volt or 2 octave range, that
still gives a resolution of only 2 / 256 = 7.8 mV.  Since 1 cent equals 83
mV / 100 = .83 mV, with this adjustment you could get no better than 10 cent
accuracy, which is terrible even in terms of a poor grade tracking VCO, not
to mention an MOTM VCO which tracks better than 1 cent over the most
critical audio range.  Even the 10 cent accuracy is questionable, as it's
likely the combined error between A/D and D/A in the Mini Wave makes it no
better than 7 bit accurate.

My advice is forget about just intonation on the Mini Wave.  Just intonation
is best used for harmonic music anyway, and you'd need multiple Mini Waves
for chord quantizing.  For single melodic lines it's much easier to use
equal tempered scales of 19 equal, 31 equal, or the Bohlen-Pierce scale.

For just intonation on an analog modular, either use true analog sequencers
(no D/As) or 16 bit accurate MIDI-to-CV converters such as the Encore
Expressionist, adding discrete pitch bends per note.

John Loffink
microtonal@...


> I'd also like to see some nice pentatonic modes available too. And I'm
also

> in agreement with the other ideas about microtonal and just intonation. I
> intend on having one Miniwave dedicated for CV processing (quantizing) and
> one for audio wave mangling, but I still haven't received mine yet : (
>