SteveK Posted April 13, 2023 Share Posted April 13, 2023 Tonight I've noticed for the first time, after having the CGP-700 for 7 or 8 years, that the GrPnoConcert sound seems to have a chorus or tremolo quality to it. But only when coming through the speakers on the top, and also when the cabinet speakers are plugged in. When I plug in headphones and the internal speakers or cabinet speakers are disabled, the headphone sound is fine. I only hear the tremolo distortion from the speakers of the keyboard. I will say that I have the piano in a relatively new room (I've had it there for a month but never noticed it before) and I thought it might be the placement of the piano against the wall. So I tried moving the keyboard to various positions with different angles and distances from the wall thinking it might be some slap coming off the wall, but that doesn't help. Is there anything to the electronics that could be causing the distortion in the signal path going to speaker that wouldn't take the same path to the headphones, that sound fine? Any ideas how I can trouble shoot this further? Maybe take the whole thing into a different room, I guess. Quote Link to comment Share on other sites More sharing options...
Brad Saucier Posted April 13, 2023 Share Posted April 13, 2023 Have you tried factory reset? Hold down both tempo buttons while pressing the power button to turn on the keyboard. 1 Quote Link to comment Share on other sites More sharing options...
SteveK Posted April 13, 2023 Author Share Posted April 13, 2023 (edited) I think I figured it out. I live in Florida. I had set up the piano, played it, didn't notice any problems. Left it while out of town. Came back to warmer weather and I'm now running the overhead ceiling fan. The airflow seems to be causing the tremelo or chorus. No distortion while listening directly over headphones. Problem goes away when I turn off the fan. (I will do a factory reset at some point just for the heck of it. I don't have many presets set and I can't really remember what I even have set.) Edited April 13, 2023 by SteveK 1 Quote Link to comment Share on other sites More sharing options...
Brad Saucier Posted April 13, 2023 Share Posted April 13, 2023 Ceiling fan was gonna be my next guess. I've had the same issue with ceiling fans before. They cause a rotary sound effect as the spinning blades redirect sound waves around the room. 1 1 Quote Link to comment Share on other sites More sharing options...
Joe Muscara Posted April 19, 2023 Share Posted April 19, 2023 Ha! At my old house, I had to remember to keep the ceiling fan off in the summer despite the Houston heat when I was tuning my acoustic piano. Not that I tuned by ear, but it would throw me off and I couldn't tell if the unisons were smooth or not. 2 Quote Link to comment Share on other sites More sharing options...
Jokeyman123 Posted August 12, 2023 Share Posted August 12, 2023 Just noticed this post-4 years later, I like to stay on top of things......but these posts suggested to me a new cheap way to get a leslie organ effect-without a Neo-Vent or other B or C emulator etc. Just install a ceiling fan on top of your PA or keyboard amp-careful placement may be critical to get the desired effect. Also a fan with variable speed would be nifty. And to ramp it up or down-just turn it off/on. Fans normally speed up and slow down slowly anyway especially if you get one of those big 6-blade suckers, making for a very realistic imitation of a real leslie, I think.....just add a DIY surround box to protect yer hands and fingers, all set. The audience will never suspect.........only you will know 😵😵😜😜 Quote Link to comment Share on other sites More sharing options...
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