RE: [200e] 250e vs 249e expanded
2006-02-07 by Fred Weed
[Cross-posted to SynthModules@yahoogroups.com for any who might be interested in new Buchla modules. The original query (below) was a request to differentiate two new Buchla sequencers, the 249e and the 250e]. For 'official' (terse) descriptions see http://www.buchla.com/200e/250e.html and http://www.buchla.com/200e/249e.html. The 250e has 16 voltage knobs, and 16 time time knobs. These can be "played" in real-time unlike the 249e, which has only a single 'data entry' knob. There are two CV outs; a push button selects which output is affected by the voltage knobs. The output voltage changes as the knob is turned, whether the sequencer is playing or being edited. There is a third time CV out; see below. The time constants for each section change while a time knob is adjusted as well - if the sequencer is 'stuck' on a very long stage, turning its time knob to the left (shorter duration) will speed up the stage causing it to advance. In addition to the two CV outs, there is a third CV out proportional to the time knob for each stage. The 250e is not midi controlled. Pulse inputs may be used to advance and/or stop various stages, and select a particular stage depending on a control voltage/knob position combination. The separate 225e module provides pulse outputs in response to midi events. The two voltage and one time CV out on the 250 may be individually quantized and interpolated. The six CV inputs on the 250 are 1) Time. Affects the duration of all sequencer stages. There is a 'bipolar' knob on the duration CV in - larger voltages either speed up, or slow down the sequence, depending on whether the knob is left or right. There is a small 'dead zone' at knob center. The time _output_ cv may be patched (externally) to the time _input_ cv so that the time cv modulates itself. The effect is subtle - if the time CV output is set to interpolate (ramp from prev value to next), cross-patching the CV out to in will change these ramps from linear to a concave or convex ramp. 2) A, B, C, D external inputs, like the 249. Each stage may take its voltage from these instead of from the voltage knob position. In this case, when interpolation is selected for a stage, it will interpolate between (for example) a knob position and an external input, or between two external inputs. If the external input is changing (for instance if an LFO is patched into one), the sequencer will sensibly interpolate from/to the changing voltage. 3) Stage addressing CV in. In continuous mode, the voltage at this input, together with the knob position, will select the active output stage. As the sequencer moves from stage to stage as a result of the CV in and knob, pulses are generated (All out, and programmed out), and interpolation takes place, if enabled. The time constant for interpolation is determined by the individual time knob setting. In strobed mode, the sequencer jumps to the stage selected by the input voltage and knob upon receipt of a pulse. There is no 'probability jump' in the 250e. A stage can be told to loop/jump to another stage. A count can be set for the loop, including 'infinite' (always loop), and loops may be nested. I am not as familiar with the 249a, but I'm quite familiar with the 250e, and will be glad to answer any further questions. Regards, Fred.
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-----Original Message----- From: 200e@yahoogroups.com [mailto:200e@yahoogroups.com] On Behalf Of paradigmshiftbeats Sent: Thursday, February 02, 2006 10:20 PM To: 200e@yahoogroups.com Subject: [200e] 250e vs 249e I have been contemplating adding one or the other along with a few more modules to my existing modular set-up. Buchla's description of the 249e DARF includes the following phrase: "The time value can be expressed as a number of MIDI clock ticks, beat fractions, or can be derived (and scaled) from an external voltage." Does the 250e retain this timing functionality, particularly the MIDI clock, assuming one also has the 225e? Also, I know both models have external voltage inputs, but are these limited to CV substitution in the 250e or do they offer the complete functionality of the 249e? Does the 250e omit any of the conditional jump/probability control? Finally, besides stage length, dual vs single (with no X/Y mode) and interface style, are there any other significant differences between the 249e and 250e? Many thanks, Chris SPONSORED LINKS Air <http://groups.yahoo.com/gads?t=ms&k=Air+sampler&w1=Air+sampler&w2=Sampler+s oil&w3=Soil+sampler&w4=Sampler&w5=Guitar+synthesizer&w6=Korg+synthesizer&c=6 &s=112&.sig=be2rYZoe1lsctkH6qzAwKA> sampler Sampler <http://groups.yahoo.com/gads?t=ms&k=Sampler+soil&w1=Air+sampler&w2=Sampler+ soil&w3=Soil+sampler&w4=Sampler&w5=Guitar+synthesizer&w6=Korg+synthesizer&c= 6&s=112&.sig=gPDIg-KgZYYMWLSV_zrwUw> soil Soil <http://groups.yahoo.com/gads?t=ms&k=Soil+sampler&w1=Air+sampler&w2=Sampler+ soil&w3=Soil+sampler&w4=Sampler&w5=Guitar+synthesizer&w6=Korg+synthesizer&c= 6&s=112&.sig=pXOgMgYU5DH4V2lBbAXjEw> sampler Sampler <http://groups.yahoo.com/gads?t=ms&k=Sampler&w1=Air+sampler&w2=Sampler+soil& w3=Soil+sampler&w4=Sampler&w5=Guitar+synthesizer&w6=Korg+synthesizer&c=6&s=1 12&.sig=JoUwD6bueE5TuIp95-cz9w> Guitar <http://groups.yahoo.com/gads?t=ms&k=Guitar+synthesizer&w1=Air+sampler&w2=Sa mpler+soil&w3=Soil+sampler&w4=Sampler&w5=Guitar+synthesizer&w6=Korg+synthesi zer&c=6&s=112&.sig=Cmy_v9YY-TpcUiIY1TKiXw> synthesizer Korg <http://groups.yahoo.com/gads?t=ms&k=Korg+synthesizer&w1=Air+sampler&w2=Samp ler+soil&w3=Soil+sampler&w4=Sampler&w5=Guitar+synthesizer&w6=Korg+synthesize r&c=6&s=112&.sig=a2FjY7LhHLZKLNr1wms-PA> synthesizer _____ YAHOO! GROUPS LINKS * Visit your group "200e <http://groups.yahoo.com/group/200e> " on the web. * To unsubscribe from this group, send an email to: 200e-unsubscribe@yahoogroups.com <mailto:200e-unsubscribe@yahoogroups.com?subject=Unsubscribe> * Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service <http://docs.yahoo.com/info/terms/> . _____ [Non-text portions of this message have been removed]