Re: [LAD] "Open midi-keyboard"

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To: Rui Nuno Capela <rncbc@...>
Cc: <linux-audio-dev@...>
Date: Saturday, September 26, 2009 - 12:03 pm

Rui Nuno Capela wrote:

I never had a keyboard supporting "poly pressure" ($An), they only
supported "channel pressure" ($Dn), n is for the channel.

Even the common "channel pressure" for some keyboards can cause a lot of
unneeded data, while played by keyboarders with shaky fingers ;).

Let's say you want to reach an aftertouch level of 120 ($78), this can
result in a huge amount of $Dn $78, $Dn $77, $Dn $79 etc., running
status won't reduce a lot of bytes, while there will be data for other
channels on the same MIDI port.

Another point is, at what value aftertouch should start with level 1.
Internal a keyboard there should be a resolution of more than 127 steps.
There should be settings that start aftertouch at soft pressure and
other settings to start aftertouch at hard pressure.

When using several MIDI ports even a lot of SysEx can be sent real-time,
but using only one MIDI port even aftertouch can cause timing problems.
It would be good if there would be some features for the master
keyboard, instead of using filters or editing functions by a sequencer.

Ralf

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Messages in current thread:
[LAD] "Open midi-keyboard", Albin Stigo, (Fri Sep 25, 3:07 pm)
Re: [LAD] "Open midi-keyboard", Carlo Capocasa, (Sat Oct 3, 1:10 pm)
Re: [LAD] "Open midi-keyboard", Fons Adriaensen, (Sat Sep 26, 11:36 am)
Re: [LAD] "Open midi-keyboard", David Olofson, (Mon Sep 28, 6:40 pm)
Re: [LAD] "Open midi-keyboard", Ralf Mardorf, (Sat Sep 26, 12:21 pm)
Re: [LAD] "Open midi-keyboard", David Olofson, (Mon Sep 28, 6:42 pm)
Re: [LAD] "Open midi-keyboard", Ralf Mardorf, (Mon Sep 28, 7:01 pm)
Re: [LAD] "Open midi-keyboard", Fons Adriaensen, (Sat Sep 26, 1:07 pm)
Re: [LAD] "Open midi-keyboard", Ralf Mardorf, (Sat Sep 26, 1:55 pm)
Re: [LAD] "Open midi-keyboard", Peter Nelson, (Sat Sep 26, 12:41 pm)
Re: [LAD] "Open midi-keyboard", Ralf Mardorf, (Sat Sep 26, 12:53 pm)
Re: [LAD] "Open midi-keyboard", Jörn Nettingsmeier, (Sun Sep 27, 11:58 am)
Re: [LAD] "Open midi-keyboard", Ralf Mardorf, (Sun Sep 27, 12:25 pm)
Re: [LAD] "Open midi-keyboard", Christian, (Fri Sep 25, 3:30 pm)
Re: [LAD] "Open midi-keyboard", Ralf Mardorf, (Sat Sep 26, 11:07 am)
Re: [LAD] "Open midi-keyboard", Rui Nuno Capela, (Sat Sep 26, 11:29 am)
Re: [LAD] "Open midi-keyboard", Ralf Mardorf, (Sat Sep 26, 12:03 pm)
Re: [LAD] "Open midi-keyboard", Jens M Andreasen, (Sat Sep 26, 8:50 pm)
Re: [LAD] "Open midi-keyboard", Ralf Mardorf, (Sat Sep 26, 9:03 pm)
Re: [LAD] "Open midi-keyboard", Ralf Mardorf, (Sat Sep 26, 9:10 pm)
Re: [LAD] "Open midi-keyboard", Nick Copeland, (Sat Sep 26, 10:28 pm)
Re: [LAD] "Open midi-keyboard", Ralf Mardorf, (Sat Sep 26, 10:56 pm)
Re: [LAD] "Open midi-keyboard", Ralf Mardorf, (Sun Sep 27, 12:24 am)
Re: [LAD] "Open midi-keyboard", Fons Adriaensen, (Sun Sep 27, 9:14 am)
Re: [LAD] "Open midi-keyboard", Ralf Mardorf, (Sun Sep 27, 11:00 am)
Re: [LAD] "Open midi-keyboard", Fons Adriaensen, (Sun Sep 27, 11:38 am)
Re: [LAD] "Open midi-keyboard", Ralf Mardorf, (Sun Sep 27, 12:07 pm)
Re: [LAD] "Open midi-keyboard", rosea grammostola, (Fri Sep 25, 3:38 pm)