Disklavier

From: "Robert Welcyng" <rwelcyng@...>

> For Mark II DKVs capable of continuous sustain pedal, please be aware of
> this:
>
> 1) Continuous sustain pedal data directed to MIDI channel #1 will be
> interpreted as on/off.  That is, for data values 0 thru 63, the dampers
> will be completely lowered upon the strings; for data values 64 thru
> 127, the dampers will be fully raised off the strings.
>
> 2) To obtain continuous sustain pedal movement, the sustain pedal
> continuous data must be directed to MIDI channel #3.  If you are sending
> the data from, say, a laptop to the MIDI In port, you must also set the
> DKV's MIDI IN to "CH=HP" in order for the DKV to respond with continuous
> sustain pedal motion.
>
> In contrast, Mark III DKVs do appear to record and respond to continuous
> pedal data directed to MIDI channel #1.


Hi Robert,

Thanks for the information.

Somehow, my Mark II definitely seems to respond quite differently to differing
controller 64 data, even though it is on channel 1. Alternating 0 and 127
produce the loud thump. Limiting it to values on channel 1, as shown in the
previous attached MIDI file, definitely produce lessening thump sounds. And I
can see that the pedal velocity is less. I have what I think is the latest MIDI
firmware update that was released a few years back.

I don't know if it is since I am 'limiting' its mechanical range in some
fashion. As I mentioned in my last post, the controller 64 values of alternating
80 and 85 on channel, seem to place the sustain pedal in an 'in-between' state,
neither fully on <or> off.

Question, even on the Mark III's, is there a danger of *not* releasing the
sustain pedal fully, by means of the controller when finished with a song, could
possibly cause an overheating problem with the pedal selenoid drive electronics,
i.e., possibly being left turned on for a long period of time <or> does the
firmware take care of this? Some of this experimenting may leave it on...

Maybe I have a Mark III at the price of a Mark II? ;^)

BTW, what are your feelings on possibly modulating the sustain pedal data for
the possibility of damping the pedal action somewhat?


Danny