Disklavier

I'm going to step in here wearing my piano technician
hat.  I doubt this problem has anything to do with MIDI
data.  My guess is that it is due to friction in the
piano action.  (I know, she always says that!!)

The first thing to check is the piano keys.  Can you
lift them up (about 1/4 inch) from the front end and
they fall back to rest under their own weight?  If they
don't, the key centers are probably way too tight.  I
see this about 1 in 10 pianos.  Only a good piano
technician with the proper tool should make this
adjustment.  It is very easy to do on a upright, but
much more labor intensive on a grand piano because all
the keys need to come off their pins and the bottom
holes in the keys need to be eased.  Sometimes there is
a sticky film on the key pins, so a good polishing can
be done at the same time.

When played so quietly as to not make a sound, do you
hear any groaning or squeaking?  Could be that all is
needed is a little teflon powder on the buckskin.  On a
grand piano, this is the knuckle; on an upright piano,
it is on the hammer butts.  We use only micro fine
powder, but the Hoppes brand sold in gun stores works
well and comes packaged with a nice needle applicator.

Sometimes the let-off adjustment is too wide.  Your
piano tech can determine if that is the problem.  Or,
on a grand piano, the jacks "cheat"; that is they
escape before the hammer has had its full swing.

And then of course can be tight action centers in
whippens and flanges.  This problem occurs a lot in
high humidity situations.  Again, a piano tech may need
to use a special lubricant, or repin the offending
parts.

If you are having this problem on an all electronic
piano like the DGT2, then check the volume control
knobs on the amplifier.

Carol Beigel


----- Original Message ----- 
From: "George F. Litterst" <PianoBench@...>
To: <disklavier@yahoogroups.com>
Sent: Monday, September 26, 2005 10:25 AM
Subject: Re: [disklavier] Re: Minimum Velocities+self
check


> Good morning, everyone.
>
> In my experience, a properly regulated and calibrated
Disklavier
> should not drop notes on playback from floppy disk,
internal memory,
> or from external MIDI when the MIDI Delay feature is
on.
>
> Dropped notes are a potential problem if the
instrument is not
> properly regulated or calibrated or if it receives
MIDI data with the
> MIDI In delay turned off.
>
> The non-Pro, pre-Mark IV Disklaviers have their own
internal settings
> that insure that low-velocity notes play back at an
appropriate
> minimum velocity (about 20-25 on grands and about 35
on uprights).
>
> Regards,
> PianoBench
>
> On Sep 25, 2005, at 12:14 PM, Spencer_Lists wrote:
>
> > Greetings Bob
> >
> > I have discovered, working with a friend who has
the same piano that
> > you do, that minimum playing velocity depends to
some extent on note
> > duration. Very quick notes require higher velocity.
We found that
> > giving a minimum of 47 cures the dropped note
problem in Ampico files.
> > We made a "preset" that seems to work well although
a program that
> > adjusts velocity only for short notes might allow
more subtlety in the
> > lower ranges. I'll write it if there is enough
interest. Here is a
> > preset string for Midimod2  I would like to know if
this is only a
> > problem with upright DKVs or if grands have the
problem too. I can
> > send a sample file to anyone who wants to try it.
> >
> > Kerr Ampico,
> >
3,7,11,15,19,23,27,31,35,47,50,51,53,56,59,63,67,71,73,
75,78,82,85,90,
> > 94,100,104,108,110,110,110,110
> >
> >
> >
> >>>>> My question is: What is the lowest velocity
number
> >>>>>
> > this piano must > have to reliably play such fast
moving music?
> > Spencer Chase's editor > will let you raise
velocities in certain
> > ranges without bothering > other velocities.  The
piano has just run
> > the self test and > calibration program and passed.
I just want to
> > know how much to raise > those soft notes. >>  >>
Many thanks for all
> > comments. >>  >> Bob Gonzalez >> bgonzalez@j...
> >
> >
> >
> >
> >
> >
> >
> >> To Post a message to the group, send it to:
> >> disklavier@...
> >>
> >
> >
> >> To Post a private message to Todd Muncy, the
group's founder and
> >> moderator, send it to:
> >> disklavier-owner@...
> >>
> >
> >
> >> To reach our group's web site go to:
> >> http://Yahoogroups.com/group/disklavier
> >>
> >
> >
> >> Todd's family web site was completely updated
012/22/03.  It
> >> contains some fun disklavier content and links to
midi sites among
> >> many other things, The url is:
> >> http://MuncyFamily.com
> >>
> >
> >
> >> THINKING OF LEAVING THE GROUP?
> >> If you are thinking of unsubcribing because you
are getting too
> >> much mail, go the the web site and change your
email delivery option
> >> instead.  That will fix the problem, while
maintaining your access
> >> to the group.  If you insist on leaving us
completely send a blank
> >> email to:
> >> disklavier-unsubscribe@...
> >>
> >
> >
> >> Know someone who wants to join?  Have them send a
blank email to:
> >> disklavier-subscribe@... or give them this
link:
> >> http://Yahoogroups.com/group/disklavier/join
> >>
> >> Yahoo! Groups Links
> >>
> >
> >
> >
> >
> >>
> >>
> >
> >
> >
> >
> > -- 
> > Best regards,
> > Spencer_Lists Chase
mailto:lists@...
> > 67550 Bell Springs Rd.
> > Garberville,  CA 95542    Postal service only.
> > Laytonville, CA 95454    UPS only.
> > Spencer@...
> > http://www.spencerserolls.com
> > http://www.spencerserolls.com/MidiValve.htm
> > (707) 984-8356
> >
> >
> >
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> -----------------------------------------------------
--------------- 
> > ~->
> >
> > To Post a message to the group, send it to:
> > disklavier@...
> >
> > To Post a private message to Todd Muncy, the
group's founder and
> > moderator, send it to:
> > disklavier-owner@...
> >
> > To reach our group's web site go to:
> > http://Yahoogroups.com/group/disklavier
> >
> > Todd's family web site was completely updated
012/22/03.  It
> > contains some fun disklavier content and links to
midi sites among
> > many other things, The url is:
> > http://MuncyFamily.com
> >
> > THINKING OF LEAVING THE GROUP?
> > If you are thinking of unsubcribing because you are
getting too
> > much mail, go the the web site and change your
email delivery
> > option instead.  That will fix the problem, while
maintaining your
> > access to the group.  If you insist on leaving us
completely send a
> > blank email to:
> > disklavier-unsubscribe@...
> >
> > Know someone who wants to join?  Have them send a
blank email to:
> > disklavier-subscribe@... or give them this
link:
> > http://Yahoogroups.com/group/disklavier/join
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
> >
> >
> >
> >
>
>
>
> ------------------------ Yahoo! Groups
>
> To Post a message to the group, send it to:
disklavier@...
>
> To Post a private message to Todd Muncy, the group's
founder and moderator, send it to:
> disklavier-owner@...
>
> To reach our group's web site go to:
> http://Yahoogroups.com/group/disklavier
>
> Todd's family web site was completely updated
012/22/03.  It contains some fun disklavier content and
links to midi sites among many other things, The url
is:
> http://MuncyFamily.com
>
> THINKING OF LEAVING THE GROUP?
> If you are thinking of unsubcribing because you are
getting too much mail, go the the web site and change
your email delivery option instead.  That will fix the
problem, while maintaining your access to the group.
If you insist on leaving us completely send a blank
email to:
> disklavier-unsubscribe@...
>
> Know someone who wants to join?  Have them send a
blank email to:
> disklavier-subscribe@... or give them this
link:
> http://Yahoogroups.com/group/disklavier/join
>
> Yahoo! Groups Links
>
>
>
>
>
>