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Re: [disklavier] Re: Volume Control of Midi during playback

2006-01-26 by Matthew Walworth

On Jan 26, 2006, at 10:01 AM, Jorge Fernandez wrote:

> Using MIDI YOKE we can use any sequencer software PT, Cakewalk, etc.
> play a the file, outputting it to the input of an on the fly software
> filter (here is the project) and the output of the filter to the
> hardware MIDI interface.


Just for the record (since it seems this thread is about solving this  
problem for Windows machines) there is a wonderful utility for  
Macintosh OS X that I use to adjust velocity on the fly (and much  
more). It operates pretty much the way Jorge is describing. It is  
called MidiPipe and can be found here:

http://homepage.mac.com/nicowald/SubtleSoft/

Using the built in IAC bus (Inter-Application Communication bus) in  
OS X, I route the output of my midi player to MidiPipe and then on to  
the actual hardware interface connected to my piano.

The tool within MidiPipe used to adjust the velocities, has sliders  
for scaling all velocities (0 - 200%) and shifting all velocities  
(+-127). One can also set a range with a min slider and a max slider  
(0 - 127) and then use push buttons to choose whether to clip, scale,  
or filter velocity values to that range.

MidiPipe currently has some 18 different tools for modifying a midi  
stream including a number of filters and message converters. It also  
has a simple midi player built in and a graphical piano keyboard that  
can be used to generate notes for testing purposes. And all this for  
FREE (although donations to the developer are gratefully accepted).

If you use midi on a Mac, this is a must have utility.

...matthew...

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