Disklavier

Thank you Fred, Spencer and Piano Bench,
     I will respond to your various comments (copied below) all at once rather than separately to make it easier for you all to follow. Maybe some others out there will benefit from some of the information here. 
     Since my response is rather lengthy, I have included it in an attached zip file along with some midi files that demonstrate some of my points. They sound very nice too so maybe those who are not that interested in the discussion will at least enjoy the music!
-Walt
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To: "Walter Sharpe" <disklavier@yahoogroups.com>
From: "Spencer Chase" <spencer@...>  Add to Address Book 
Date: Sat, 3 Jan 2004 00:09:40 -0800  
Subject: [disklavier] pedal thumping etc.      
 
Greetings Walter and Group,
I am writing utility programs to modify MIDI files. Is there some agreement regarding what needs to be done to eliminate duplicate track data etc for problems like pedal thumping? Is this an issolated problem or do certain MIDI file conventions (I really don't understand the need for duplicate pedal information to be in files to begin with.) produce files that cause problems and is there a need for utilities to remove or shift these events?
Most of the functions in my utilities are for electronic piano rolls but I am hoping to add functions for use by DKV owners. What sorts of functions are needed. I can easily add functions like merging tracks. I already can do this and can fix resulting overlaps but have not attempted to remove redundant events. This is probably not difficult to do but is it necessary? Does the DKV care if events are duplicated? 
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To: disklavier@yahoogroups.com 
From: PianoBench@...  Add to Address Book 
Date: Sat, 3 Jan 2004 09:43:46 EST 
Subject: Re: [disklavier] Re: 3 mysterious Disklavier problems (Pedal Thump Revisited) 
Good morning, everyone.
Walt, I think it is time to call Yamaha Piano Service directly. You should not have to wait so long for your technician to take care of this matter.
All pianos will have some level of noise due to their mechanical nature. Your narrative seems to show that your instrument is outside of normal parameters.
Yamaha Piano Service: (800) 854-1569 between 8:30-5:00 PST. Push 2 at the first menu choice and 2 at the second menu choice.
I hasten to add, though, that I think the best test of your instrument would be to see how it plays song files that were recorded in realtime by a pianist on a Disklavier. The song files from 
www.parlorsongs.com were not recorded by a pianist on a Disklavier. Although they may be enjoyable, they represent a totally artificial creation.
Regards,
PianoBench 
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o: disklavier@yahoogroups.com 
From: "fkagel" <fkagel@...>  Add to Address Book 
Date: Sat, 03 Jan 2004 10:09:07 -0000 
Subject: [disklavier] Re: 3 mysterious Disklavier problems (Pedal Thump Revisited) 
Walt,
Starting with the source, the 12th St Rag Midi file is strictly on/off (up/down) for the sustain pedal, no ands, ifs, or buts. Therefore, continuous (HP/Half Pedal) is a mute issue with this particular file.In Cakewalk, View | Events and observe Controller 64 (the sustain pedal) as 127 or 0 --- right down thump alley. In Cakewalk or other sequencing program, you can lower the upper values. You did not delete all of the pedal info as you have indicated below. I still saw Controller 64 data.
I am not familiar with your model DKV (we have a Mark III), and not sure of your controller's capabilities with regard to HP data. What happens if you record something and observe the Controller values in Cakewalk? Are they not in a variable range? How does the thumping sound? 
AFAIK, you can redirect only one MIDI channel to the DSK itself through the Mark III controller functions, so what you are doing with the midi file is just fine. I was referring to a file that already had Piano on Channel 1 and 2 and pedal on 3.
Fred 






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