Ted, as I mentioned to others in previous posts, I cannot make a definite statement as to whether your Disklavier is misbehaving unless I know whether playback:
--is from floppy disk or internal memory
--external MIDI with the MIDI In delay turned on
--external MIDI with the MIDI In delay turned off
I only expect a problem in the last of the 3 scenarios. Here is why:
Each note in a performance is stored as 2 messages: note-on and note-off. Unlike an electronic keyboard that can respond to these messages immediately and change the sound that you hear immediately, the Disklavier is somewhat sluggish because of its mechanical nature
If there is no MIDI In delay, the Disklavier responds to an incoming note-on message by immediately starting to move the key. You hear the result somewhat later. How much later depends upon how long it takes for the hammer to hit the strings.
At some point during the key downstroke, the hammer loses contact with the key and the hammer is sent in free flight toward the string. Either before or after the hammer hits the string (depending upon how short the note is), the key is released and returns to rest.
When, from external MIDI, you rapidly send repeated note-on messages for the same note or when you quickly follow a note-on message with a note-off message, you may interrupt the key-down stroke before it has a chance to finish its complete motion. The result may be that the hammer never hits the string. You may also trigger another key-down stroke before the key is reset and ready to engage the hammer again. In both cases, the intended note may not play properly or at all.
When the MIDI In delay is turned on, the Disklavier's processor looks at the incoming MIDI data, figures out when the hammers should hit the strings relative to each other and how fast they should travel when they strike. Then, the Disklavier figures when and how fast to move the keys in order to make it all work. In order to achieve this feat, the Disklavier needs a 1/2 second to process everything.
NOTE: When making experimental MIDI files to test a Disklavier's responsiveness, it is important to realize that you can easily (and mistakenly) create a MIDI file that no mechanical instrument can play properly under any circumstances. When making a test file, it is a good idea to ask yourself, "Could an excellent pianist play this file?" If the answer is, "Yes," then the file is a reasonable test file.
Regards,
PianoBench
On Sep 27, 2005, at 12:16 PM, Ted East wrote:
Good morning, George.
"Is it possible to create another test file but with the note being rapidly repeated before progressing? "
The problem I experience is when the piano tries to play a soft quick note repeatedly. The test file simply plays A B C D F E F and so on, which plays fine. I was asking to have the test file play AA BB CC DD EE FF. Do you have any insight to why the piano fails to sound the the second note?
-Ted
On Tue, 2005-09-27 at 10:06 -0400, George F. Litterst wrote:
Good morning, everyone.
On Sep 27, 2005, at 9:42 AM, Ted East wrote:
All,
I tested the file on my mx100a upright. All notes sound at all volume levels, in fact I did not detect a noticeable difference in volume between 0 and -3.
If the notes were low velocity to begin with, your Disklavier will play them back with some minimum velocity that is appropriate to the instrument. Turning the volume down further will not push the actual playback velocity of the notes down beyond that built-in minimum.
However I have noticed that my piano has problems playing short quick notes in rapid succession.
Was this playback:
--from floppy disk?
I expect that this should be fine.
--from external MIDI with the MIDI In delay set to 500 ms?
I expect that this should be fine.
--from external MIDI with the MIDI In delay turned off?
I expect this to be a problem.
Is it possible to create another test file but with the note being rapidly repeated before progressing?
I am not sure what this means.
Regards,
PianoBench
On Mon, 2005-09-26 at 12:08 -0800, Robert Welcyng wrote:
For those interested, I'm attaching a short midi file (type 0). The duration of each note is 31 msec, approximately, and all notes are of velocity 10. When this file is played on my Mark II DC3, all notes sound.
(Should you not find the attachment, contact me privately.)
Spencer_Lists wrote:Greetings George, typing left handed, forgive lower case please. it was a real surprise to me that the dkv would not play quick soft notes. i would think that the mechanism and electronics should do whatever is necessary to play any note sent to it, with the possible exception of very quick brushed notes. the pianodisc brings all note durations and velocities up to a minimum so they will play. this is annoying at times as all brushed notes play audibly. i had to write a program to remove them automatically. the delay is turned on. without it it is much worse. the piano has been regulated several times by a dealer tech. maybe there is a shortage of dealer techs who know what they are doing. it is interesting to hear of another piano with the same problem. Monday, September 26, 2005, 7:25:47 AM, you wrote: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, PianoBenchOn 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, 94,100,104,108,110,110,110,110My question is: What is the lowest velocity numberthis 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/disklavierTodd'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.comTHINKING 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
-- Robert Welcyng Anchorage, Alaska
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
SPONSORED LINKS
Piano music box Piano music Musical instrument keyboard Piano music book Keyboard instrument Piano sheet music
YAHOO! GROUPS LINKS
- Visit your group "disklavier" on the web.
- To unsubscribe from this group, send an email to:
disklavier-unsubscribe@yahoogroups.com
- Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
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
SPONSORED LINKS
Piano music box Piano music Musical instrument keyboard Piano music book Keyboard instrument Piano sheet music
YAHOO! GROUPS LINKS
- Visit your group "disklavier" on the web.
- To unsubscribe from this group, send an email to:
disklavier-unsubscribe@yahoogroups.com
- Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
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@Yahoogroups.com
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@yahooGroups.com
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
- Visit your group "disklavier" on the web.
- To unsubscribe from this group, send an email to:
disklavier-unsubscribe@yahoogroups.com
- Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
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
- Visit your group "disklavier" on the web.
- To unsubscribe from this group, send an email to:
disklavier-unsubscribe@yahoogroups.com
- Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.