I want to sustain a high note and then hear it slowly, smoothly glide down to a low note. So I hold down the highest note on the keyboard, turn Glide Rate to maximum, then while still holding down the high note I press the lowest note on the keyboard. I expect the glide to be “seamless”, but it isn’t.
There is a “blip” when the lowest note is pressed. The blip sounds kind of like an attack envelope, but it’s not. The Gate parameter is set to Legato On, so it’s not that an EG is firing. And again, I’m not releasing the high key when I subsequently press the low key. The rest of the glide down is smooth, it’s just at the instant of pressing the target key that the blip is heard. If someone could test this I’d appreciate it, in case I’m missing something.
My hunch is that it has something to do with the LP’s Note lookup tables, but I don’t know.
Thanks
Example 1
Here’s the glide. The top key is held down while the bottom key is pressed. Gate is set to Legato On. Focus on the instant at which the glide begins.
Example 2
While holding down the top key I repeatedly hit the bottom key. It’s hard to pinpoint what the “blips” are, but the ear hears a lack of smoothness.
Example 3
Here’s Example #2 with the audio slowed down. You can hear what the blip is. The starting note goes sharp for just an instant before it glides down. The last instance at :29 is particularly obvious.
The behavior I describe is on all patches I’ve tried. I’m using a Stage I with software version 2.2 588. I never thought to try this with previous versions. I don’t doubt that your LP is ok in this regard, and I appreciate you taking the time to test my assertion. It’s just my guess, but I think oscillator tolerances and scaling vary. The LP’s lookup tables do a great job of mitigating these differences and keeping everything sounding in tune. I can’t explain why I think the LUT is a factor here in the glide anomaly, and I’m probably wrong.
Under the Advanced Preset menu, check the settings for “EGR Release” and “Gate” = especially the gate setting. If worse comes to worse, you could do a system re-boot, but I’ll bet you have some user-created patches you don’t want to lose.
Thanks for the replies and good suggestions, which I did try. Calibration preset was a good idea. No difference. Maybe I’ll try a system restore. Yeah I do have some presets I want to keep, but I think I’ve got them all in sysex.
From listening to the audio samples, it definately does’nt sound normal. I never get those blips with my glides.