Disklavier

Good morning, everyone.


On Oct 16, 2008, at 10:51 AM, Dan Armstrong wrote:

>
> Can somone confirm that the devices that actuate the keys in the  
> "play" mode are different from the devices that function from the  
> keys in the "record" mode?  Are they two separate devices or is the  
> onboard computer different, or both?  This is a Mark III W/CD  
> model.    Thanks,  Dan


The record and playback systems are separate. During recording, key  
sensors and (in the case of DC3 and larger grands and DU1A) hammer  
sensors record the MIDI note-on/note/off messages. During playback,  
solenoids under the back ends of the keys (inside the piano) push the  
back ends of the keys up in order to throw the hammers toward the  
strings.

When a technician calibrates the instrument, both systems are as  
checks on each other.

Regards,
PianoBench