Disklavier

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

Danny <simpsond@...> wrote:

> Robert, I believe the firmware in my Mark II XG is version 1.44, as that
> was the
> latest download that I received from Yamaha which I still on my
> computer. (I'm
> not certain on how to show the firmware revision number on my piano.)
> I'm just
> trying to find some commonality between our systems.
>
> R: Danny, I have a Mark II only, not an XG, so we'll surely have
> different ROM versions (and, perhaps, different characteristics).  Mine
> has two different ROMs:
>
> 1) PK CTL ROM: Version 2.03 (Apr 4, 1995) (Power on with the L&R buttons
> pressed; press "+" once; press "Song Select Fwd".)
>
> 2) Sensor Prgm ROM: Version 1.24 (Dec 14, 1993) (Power on with the L&R
> pressed; press "+" twice; press "Song Select Fwd".)
>
> {My ROMs are just that (not EPROMs) and had to be physically changed out.)
>
> BTW, in the comparisons you two are making and describing, are you
> playing the MIDI files from a diskette in the DKV drive or from an
> external computer?


DD: Hi Robert,

DD: I am using the internal DKV diskette drive for these tests. I have not
experimented with the MIDI port on this since most folks are using their DKVs in
a 'stand-alone' mode.

DD: By the way, I totally agree with a statement that you made yesterday that
the software should *not* be a 'patch' for fixing hardware problems in a case
such as this one, by all means. There seems to be a few folks that are having
problems in getting their sustain pedal(s) aligned properly to minimize this
thumping sound.

DD: Sounds like Yamaha has many changes (or improvements) between their
different DKV models over the years that are difficult to ascertain exactly how
each responds to differing MIDI data, such as continual pedal action and true /
delta velocity. It would be nice to have a list of these differences, but may be
difficult to obtain or create one. Obviously, the newer Mark III would behave
more like the actual MIDI data is telling it to than some of the earlier models.

DD: It is obviously much easier for a MIDI only sound generator module to
'follow' the nuanaces of MIDI data as it doesn't have to work in the 'real
world' with mechanical doings!

DD: Danny