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Looper's Delight
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Hmmm, I think it depends on how smooth of delay time change you want. Typically, as the delay time smoothly increases you are effectively changing the output sampling rate with respect to the input rate. This sounds like a temporary pitch/time change while the delay time is changing. Unfortunately, it is not a technology thing but a physics thing. You will encounter this effect regardless of the technology. I.e., try an alternate universe to eliminate this effect. On the other hand, if you jump from one delay value to another, you can eliminate the pitch change and with some effort smooth the transition in sample values to eliminate any snap or pop. But the signal will jump in time. For example, if the input is repetitively counting "1-2-3-4-..." you will hear "1-2-" and a jump to "-4-1-2-...". By making the steps very small, you can minimize the effect, but it will always be present to some degree. (Think of limits in calculus.) Likewise, by smoothly changing the delay time, you can minimize the pitch changing but never eliminate it. Hope this explnation helps. Dennis Leas ----------- dennis@mail.worldserver.com -----Original Message----- From: Guywithatele@aol.com [mailto:Guywithatele@aol.com] Sent: Monday, March 10, 2003 9:19 PM To: Loopers-Delight@loopers-delight.com Subject: delay time part ii My bad. Let me be clearer: I'm not trying to tap new times or to change from, for example, 3000ms to 2775ms by way of a single, discrete change. I'm trying to locate a delay system where smooth transitions from one delay time to another are accomplished without the glitchy, herky-jerky "artifacts" my current delay renders. I think it may be a current technological impossibility, though: to scroll through a 225ms (or whatever the situation calls for) change-in-delay-time without necessitating a portamento glide effect or that re-calculating gl-llli-itttt-cch--ch-hhh-n-lock. I was hoping that someone may know of a higher-end delay unit that could accomplish smooth transitions. Maybe I need an analog tape-type delay with very accurate time codes. Tape loops, me'be? Do these exist? or are digital racks the only precise delay units at the moment. Thanks again! > Anyone know of a delay unit that can glitchlessly > change delay times as signal is being fed to it? > E.g., in my current processor (DP/4, Ensoniq), > altering a delay time from 3000ms to 2775ms as it > receives signal causes (understandable) herky-jerky > effects. I'd like to know if anyone has used a > (digital) delay that allows for minute changes > smoothly. > > Thank you.