PLAN B analog blog

yes getting excited about this one too.


but question, 

would this work well If I clock it with a gate? so lets say keyboard
cv going into the input, keyboard gate going into the clock/pulse input?  

or do I need to have something else like working as a clock?

C

--- In PLAN_B_analog_blog@yahoogroups.com, James Cigler
<jamescigler@...> wrote:
>
> Oh man that is fantastic!  I can't wait!
> 
> -james
> 
> On Feb 6, 2008, at 4:00 PM, "(i think you can figure that out)"
<peter@...> wrote:
> 
> As the Model 23 Analog Shift Register nears design completion, I've
> posted some sound samples to give you an idea why it's got us sort of
> excited. Before I do, let me go into a few details on the things about
> ASR's which I've personally found aggravating:
> 
> A) Outputs do not track the input voltage, making driving them with a
> keyboard problematic.
> 
> B) Output taps not tracking one another so that a voltages vary as
> they are passed down the line of outputs.
> 
> C) Incoming clock causing a droop in held voltages at it's falling edge.
> 
> I'm glad to say that the Model 23 does none of these things. As the
> following sound samples indicate, four separate VCOs driven by the
> (now) four outputs of the ASR track to the quantized input of an
> envelope generator:
> 
> http://www.ear-group.net/asr1.mp3
> 
> Same patch, but slower, giving you a clear indication of the
> uniformity of the voltages as they go down the line of outputs:
> 
> http://www.ear-group.net/asr2.mp3
> 
> Same patch, at even a slower pace:
> 
> http://www.ear-group.net/asr3.mp3
> 
> Having a little melodic fun, now with the four VCOs gated through a
> Model 13:
> 
> http://www.ear-group.net/asr4.mp3
> 
> Screwing around with the update speed, this time with the M23 sampling
> quantized random voltages via the Model 24 give the 'classic ASR'
effect:
> 
> http://www.ear-group.net/asr5.mp3
> 
> Design Changes/Improvements:
> 
> The M23 now has four independent outputs taps Clock distribution to
the four S+H's is now performed by an Atmel 2051 microcontroller. The
analog memory (the capacitors) are monolithic laser-trimmed
semiconductor junction type. The added expense yields the resolution
you're hearing while cutting down on the overall part
> count.
> 
> For more information of the M23, go here:
> 
> http://www.ear-group.net/model_23.html
> 
> We will be seeing these along with the other first wave of ELF devices
> coming in the late Spring/Early Summer.
> 
> - P
> 
> 
> 
> 
> 
> 
>      
____________________________________________________________________________________
> Looking for last minute shopping deals?  
> Find them fast with Yahoo! Search. 
http://tools.search.yahoo.com/newsearch/category.php?category=shopping
>

Clock can be a gate, trigger, waveform...anything that crosses above
about 1 volt as that's when the microc. senses it as a high or logical
1 and that's when it rapid-fires the four 50 microsecond pulses into
the four S+Hs that update the output registers.

That's how these things work. In the M23, when the outside world gives
it a clock, four event occur within 200 microseconds: output 4 samples
the output of three, 3 samples the output of 2, 2 samples the output
of 1 and 1 gets a new one from the external input.  Of course this is
happening so fast you can't hear any of it.  That's how ASRs do the
shifting. The Serge ASR does this operation in three milliseconds. 
Ours does it in 1/15th that time!

As a comparison and to give you an idea of how safe this is, midi
keyboards have an automatic 1 millsecond delay once you press a key
before a gate is produced.

- P


--- In PLAN_B_analog_blog@yahoogroups.com, "Carlos" <bushwick@...> wrote:
>
> yes getting excited about this one too.
> 
> 
> but question, 
> 
> would this work well If I clock it with a gate? so lets say keyboard
> cv going into the input, keyboard gate going into the clock/pulse
input?  
> 
> or do I need to have something else like working as a clock?
> 
> C
> 
> --- In PLAN_B_analog_blog@yahoogroups.com, James Cigler
> <jamescigler@> wrote:
> >
> > Oh man that is fantastic!  I can't wait!
> > 
> > -james
> > 
> > On Feb 6, 2008, at 4:00 PM, "(i think you can figure that out)"
> <peter@> wrote:
> > 
> > As the Model 23 Analog Shift Register nears design completion, I've
> > posted some sound samples to give you an idea why it's got us sort of
> > excited. Before I do, let me go into a few details on the things about
> > ASR's which I've personally found aggravating:
> > 
> > A) Outputs do not track the input voltage, making driving them with a
> > keyboard problematic.
> > 
> > B) Output taps not tracking one another so that a voltages vary as
> > they are passed down the line of outputs.
> > 
> > C) Incoming clock causing a droop in held voltages at it's falling
edge.
> > 
> > I'm glad to say that the Model 23 does none of these things. As the
> > following sound samples indicate, four separate VCOs driven by the
> > (now) four outputs of the ASR track to the quantized input of an
> > envelope generator:
> > 
> > http://www.ear-group.net/asr1.mp3
> > 
> > Same patch, but slower, giving you a clear indication of the
> > uniformity of the voltages as they go down the line of outputs:
> > 
> > http://www.ear-group.net/asr2.mp3
> > 
> > Same patch, at even a slower pace:
> > 
> > http://www.ear-group.net/asr3.mp3
> > 
> > Having a little melodic fun, now with the four VCOs gated through a
> > Model 13:
> > 
> > http://www.ear-group.net/asr4.mp3
> > 
> > Screwing around with the update speed, this time with the M23 sampling
> > quantized random voltages via the Model 24 give the 'classic ASR'
> effect:
> > 
> > http://www.ear-group.net/asr5.mp3
> > 
> > Design Changes/Improvements:
> > 
> > The M23 now has four independent outputs taps Clock distribution to
> the four S+H's is now performed by an Atmel 2051 microcontroller. The
> analog memory (the capacitors) are monolithic laser-trimmed
> semiconductor junction type. The added expense yields the resolution
> you're hearing while cutting down on the overall part
> > count.
> > 
> > For more information of the M23, go here:
> > 
> > http://www.ear-group.net/model_23.html
> > 
> > We will be seeing these along with the other first wave of ELF devices
> > coming in the late Spring/Early Summer.
> > 
> > - P
> > 
> > 
> > 
> > 
> > 
> > 
> >      
>
____________________________________________________________________________________

> > Looking for last minute shopping deals?  
> > Find them fast with Yahoo! Search. 
> http://tools.search.yahoo.com/newsearch/category.php?category=shopping
> >
>