[
Date Prev][
Date Next] [
Thread Prev][
Thread Next]
[
Date Index][
Thread Index][
Author Index]
Re: OT: Aftertouch
Title: Re: OT: Aftertouch
At 6:03 PM -0700 9/4/01, Om_Audio wrote:
I am
considering the Roland A-33 midi keyboard controller- it does not have
aftertouch- what is aftertouch?
Aftertouch (also called "Channel Pressure" or "Key
Pressure") is a MIDI control message that is sent out when you
press down on a key. The harder you press, the higher the value. It
can be used to control such things as pitch, filter cutoff, amplitude,
etc. There are actually two kinds of Aftertouch. Monophonic
Aftertouch (Channel Pressure) sends out a single stream of control
messages on a single MIDI channel. If several keys are being pressed
at the same time the highest value is the one being sent. Polyphonic
Aftertouch (Key Pressure) sends a separate control stream for each key
on the keyboard. This is much less common than Channel Pressure.
--
______________________________________________________________
Richard Zvonar, PhD
(818) 788-2202
http://www.zvonar.com
http://RZCybernetics.com
http://www.cybmotion.com/aliaszone
http://www.live365.com/cgi-bin/directory.cgi?autostart=rz
