From David Moylan Sent Fri, Jul 11th 2008, 17:14
Sounds like you need a voltage controlled one-shot. Probably easy enough to build with a 555 timer. Any manufacturers have such a thing out there? Dave James Husted wrote: > What I would find more useful is to have a variable gate time for each > step instead (or along with) the variable step time. To be able to > adjust the step's note length within the step (and not changing the > total sequence time) would be a very useful thing to me. > -James > > > On Jul 11, 2008, at 9:28 AM, alt-mode wrote: > >> Ah OK, that's what I thought you meant. Of course, the main feature >> of the >> System 700 sequencer in this respect is rotary switches that can >> change the >> timing accurately on the fly. A switch and a pulse divider might be >> easier >> to work with. This would also be true for the comparison to the SAM-16 >> sequencer that Gene mentioned; switching from 1/8th to 1/16th quickly and >> accurately is tough with a continuous knob. >> >> I guess no single step sequencer will ever have all of the features >> possible >> but it is cool that each seem to have their own quirks and personality >> that >> make them unique! >> >> Eric >> >> On 7/11/08 11:13 AM, "charles graef" <xxxxxxxxxxxx@xxxxxxxxxxxx.xxx> >> wrote: >> >>> Yup -- sorry, I phrased it badly. When you clock from an external >>> VCLFO you >>> can modulate the frequency of said VCLFO with the CV out from one of the >>> sequencer rows and thus modulate the duration of any given step. For >>> example, in theory if the CVs in the row were >>> >>> 0v | 1v | 1v | 0v | 1v | 1v | 0v | 1v | 1v | 0v | 1v | 1v >>> >>> the rhtymn of the output would be >>> >>> 1/4 | 1/8 | 1/8 | 1/4 | 1/8 | 1/8 | 1/4 | 1/8 | 1/8 | 1/4 | 1/8 | 1/8. >>> >>> An octave is a doubling of frequency and you're working 1v/oct. If the >>> clock goes twice as fast, the duration of the step is 1/2 as long. Etc. >>> >>> --Chuck >>> >>> >>> -----Original Message----- >>> From: alt-mode [mailto:xx@xxx-xxxx.xxx] >>> Sent: Friday, July 11, 2008 10:11 AM >>> To: charles graef; 'analogue' >>> Subject: Re: [AH] totally insane!! system 700 sequencer >>> >>> On 7/11/08 9:39 AM, "charles graef" <xxxxxxxxxxxx@xxxxxxxxxxxx.xxx> >>> wrote: >>> >>>> The Doepfer sequencer allows the CV or audio input to individual steps. >>> The >>>> Analogue Systems sequencer has skip. Would be nice if every >>>> sequencer had >>>> everything. >>>> >>> Very true! >>> >>>> Re the Roland, I should think it would be possible when using an >>>> external >>> VC >>>> clock with a row of sequencer CV and thereby halve a given step >>>> duration >>>> with an octave increase in CV from that row, quarter the duration >>>> with a >>>> 2-octave increase, etc. >>> >>> OK, I don't think I parsed that. Are you saying that you can use the >>> CVs >>> from a row to modulate the clock rate and thereby achieve the timing >>> changes >>> that are possible with the per step switches? Please elaborate. >>> >>> Eric >>> >>> >>> >> >> > >