On 2/10/04, Richard Brewster put forth:
>These do look interesting. But I can't understand them very well from
>looking at the web page. Here's my summary and some questions:
>
>Analogic-ACS 16bits Voltage Quantizer is:
>
>A single output 16-bit quantizer.
>Four separate input channels, having two mixed inputs each.
>Some inputs to select the channel to be quantized. (How do these work?)
>A clock input to control conversion.
>Three banks of eight scales each.
>Bank selection seems to be by a 3-position toggle switch only.
>Scale selection is by a manual dial, or by one of eight gate inputs.
>
>It is designed to be used with the sequencer, but I want to know how I
>could use one of these without the sequencer.
I guess you could use it with any CV source (sequencer, LFO,
MIDI-->CV converter, etc.) as long as it was within its voltage range.
>What are the input and output voltage ranges?
Good question :)
>Why do I need four input channels if there is only one output?
That seems like overkill to me. I imagine it is for switching
between four CV sources, like the four rows of a four-channel step
sequencer.
>Do I always have to supply the clock for conversion?
Most quantizers designed for step sequencers do not have a sample and
hold feature, as the output of a step sequencer should be very
stable. However, it would be useful if the input was continuous or
fluctuating like the output of an LFO or pitch-->CV converter. It
could also be used with the differentiator to trigger converter I
built that Larry put up on his site. Many pitch-->CV converters with
built in quantizers (eg. Korg, Roland) combine all three functions
(differentiator to trigger, sample & hold, and quantizing).
>Why can't I control the bank selection by voltage control? Like on a
>Miniwave.
>Eight separate gate inputs to control scale selection! What happens if
>two of those gates are enabled? I want one CV input for scale selection,
>like on a Miniwave.
I agree that a CV implementation seems more elegant, and uses fewer
jacks. However, if you wanted to select scales on Miniwave using
logic triggers, you would need an external router and voltage sources
(eg. 700, 800) or a DC-coupled VCA and mixer.
>What if I want more scales?
I'd like to know what the 24 scales are.
>I can dig a 16-bit precision quantizer, but the electrical and human
>user interfaces seem whacky on this one.
I tend to agree, but I would like to know more about it.
>P.S. Has anyone else noticed that email from Tobias is dated three days
>into the future?
Maybe he's a cyborg sent to terminate Dieter Doepfer ;)