In the MMD Archives I found some discussion about the ability to convert the MIDI velocities to expression notation for piano rolls. I did not follow all discussions afterwards so I am not sure that I still can contribute something usable this moment. But you never know.... A few months ago I introduced the program "Midiboek" for Windows. It is a template printing program. I did write the program myself and I am rather well introduced in the secrets of MIDI. When I rewrote Midiboek for Windows (originally it was a DOS program), I conceptually prepared the program for other purposes than template printing only. One of the users of Midiboek now feeds his automatic
punching machine with the print script file of Midiboek. I made some small modifications to that file, enough to be able to control the stepper motors in the punch. (Potential) users of automatic punches are encouraged to inspect this file and to see if they can do something with it. Okay, back to the expression holes now: if anyone still wishes to use the velocities in MIDI files for this purpose, I suggest to him/her to download Midiboek (it is free) and see if the basic features meet most of the requests for printing templates for piano rolls. If so, contact me and I will see if I can build in the expression feature. I realise that Midiboek has an important disadvantage: it can not print continuously on pin feed paper. But I will try to find out how much work it is to realise that if there is enough interest for. For your information: within a reasonable period of time, Midiboek 3.0 will be available that supports English besides Dutch.
本文转自：China Industry News
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