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Re: Xfade vs. zeroX / HW vs SW (was: dream box)----- Original Message ----- From: Matthias Grob >>I think both Kyma and MAX/MSP provide solutions. This is cool! >[Sometimes I feel that, if I'm into this "looper >>religion" thing, then Kyma is like my denomination. :) That makes the MAX/MSP folks (and Orville users, etc.) >>like a different denomination; same religion, they just use different words to mean about the same thing!] >please let me be member of such denomination! I always thought you were one of the founders! One of the "fathers of the revolution"!!! Viva la Loop!!!!!! :) >Doesnt the audibility depend on the sound material? >Roughly: For percussive sound, the zero crossing is great but for >sustained sound, cross fade is necessary, >otherwhise you hear a new attack which can be about as annoying as a click. >In a future HW solution such fades will be available and probably >controllable. >The sound material could be analyzed to define characteristic. Interesting... Yes, I think the audibility depends on the sound material, but I would say just the opposite! I.e., I'd use zeroX for sustained sounds. Here's my experience: I wrote a zero-crossing adjuster for Kyma recently. To test it, I created a short loop by humming a continuous tone into the mic and punching in/out. Sure enough, I heard a click at the loop point. After being zero-adjusted, the click completely disappeared. But perhaps with other sounds, the zeroX would leave artifacts. My zero-crossing adjuster alters the loop length, even if by only a tiny amount. It advances the start point and retreats the end point until a zero-crossing splice is achieved (with the same signal slope on each side). The nice thing about Xfade is that the loop length can remain EXACTLY the same. In thinking about Alex's original question some more, I think maybe a cross-fade for the sub-loop to eliminate clicks but trim the new material with a zero-crossing adjustment. I like your idea of selectable/controllable fades. >Shure, HW is for the road and SW for the studio. >I might try to use a notebook for a show, but then again, clicks are less audible there, so we really need more >parameters and quality in the studio and therefore a bigger display and time to operate - it fits together. >All I am concerned with is that the HW and SW systems are not too >different so the user can use the same >foot pedal with the same basic functions to create the same music. Yes! Convergence! Dennis Leas ----------------------------- dennis@mdbs.com