One feature that some MIDI keyboards have is aftertouch, i.e. that while the note is pressed it sends a control message (0-127) proportional to the pressure with which the key is pressed. This can then be used to control volume, filter or any other parameter of the synthesized sound. While monophonic aftertouch (or Channel Presure) is most common (the average pressure of all keys pressed), some keyboards support polyphonic aftertouch (each key sends out a separate pressure value). I think some early synthesizer like the Ondes Martenot had this feature as well, but I'm not sure.
A standard on MIDI keyboards is to have pitch and modulation controls to allow for glissandos and vibratos or any other performance parameter. Some newer keyboards also have IR beams that allows you to control the sound by waving your hand in free air. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Posted from the new ixda.org http://www.ixda.org/discuss?post=36162 ________________________________________________________________ Welcome to the Interaction Design Association (IxDA)! To post to this list ....... [EMAIL PROTECTED] Unsubscribe ................ http://www.ixda.org/unsubscribe List Guidelines ............ http://www.ixda.org/guidelines List Help .................. http://www.ixda.org/help
