The tuner would be available initially as a finished product before the digital memory. Early next year is my goal for the smart tuner... just so many oscillators to tune on this keyboard! :D But should be a small board of 5 X 5 inches or close to that. Wiring from the kit harness to the locations of the critical trimmer pots is required, so an investment of work there for the installer.
I would like to see these machines get out of the house for others to experience in live from time to time. Better than being in a retirement home's "isobaric chamber" so they stay in tune. Machine was not designed for that. No more fear of the trimmers.
Memory presets also prove to work in testing, but would follow some time after the auto-tuner project is completed.
Gavin Curtis
ModuleMaster/Circuit Solutions Inc.
2006 S Main
Moscow, ID 83843, USA
www.modulemaster.com
Tel: 208-892-0764/888-892-0764
--- On Thu, 9/24/09, Scott Metzger <scottmetzger3d@...> wrote:
From: Scott Metzger <scottmetzger3d@...>
Subject: RE: [yamahacs80] Any interest for digital auto-tuning and digital memory preset feature add-on?
To: yamahacs80@yahoogroups.com
Date: Thursday, September 24, 2009, 3:56 PM
yes please.. Hopefully David could help with the install on mine? What do you say David?
To: yamahacs80@yahoogro ups.com
From: gavincurtis@ yahoo.com
Date: Thu, 24 Sep 2009 06:29:18 +0000
Subject: [yamahacs80] Any interest for digital auto-tuning and digital memory preset feature add-on?
Been experimenting with a prototype digital tuning add-on for the CS-80. A small micro-controller board calibrates all critical oscillators to a reference crystal via serial data controlled trim-pots on demand. Never have to open the unit up again for tuning.
Also working with a memory preset system which has been a challenging design concept so far. Like the auto-tuner, is a relatively compact circuit board that fits into the case of the CS-80. A low profile remote user panel fits to the underside of the micro-slider memory cover via a 4 conductor ribbon cable. The add-on is only visible when the cover door is open.
You program the keyboard as you normally would by adjusting the micro-sliders to obtain the desired sound. Then select any one of 999 available memory locations and instantly store that setting into digital memory. You can also copy any store sound settings in your library to a row of 5 "radio preset" buttons for instant performance presets. A 2nd identical digital storage interface is directly below and is for the 2nd set of micro sliders... so nearly 2000 presets could be stored.
The memory preset system has it's own internal bank of digitally controlled trimmers that exactly mimic the control panel sliders. Imagine if each micro-slider had a twin internal motor driven slider controlled by a computer.
The memory preset system records the slider positions you set with your fingers and stores their positions into any one of the 999 spaces in the FLASH memory. Simply call up any of the (up to 999) memory locations, the internal pots instantly move to the desired positions.
Technical to install, but would be very clean. It could also be removed at a future date and keyboard returned 100% to its original state if desired.
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