26 Sep
2004
26 Sep
'04
2:43 p.m.
I play the organ, and would like to sequence some organ music in
rosegarden4. The only problem is that the organ doesn't care how hard
you hit the keys (MIDI note velocity), so what would be a fine organ
performance sounds really silly because of the different velocities. I
don't see a way to filter out note velocity in rosegarden itself, so I
think I'd like to use an external filter. I could write one easily
enough, but it seems that there might be a generic MIDI filter program
out there somewhere, that can go in the patch bay. Does anyone know of
one?
--
De gustibus non disputandum est.
26 Sep
26 Sep
4:58 p.m.
On Sun, 2004-09-26 at 09:26, Hans Fugal wrote:
I might suggest that you consider recording the velocity information but
then not use it. It won't hurt anythign to have it in the MIDI file.
You should be able to very easily modify velocity using the notation
editor if you really want to get rid of it, but possibly the RG
developers just overlooked this feature in the filters page. I filed an
enhancement rrequest that they worked on probably two years ago to build
the current MIDI filter page, but I cannot remember what I asked for and
I cannot find it in the RG bug reporting system. It's probably there
somewhere.
You also might be able to edit MIDI velocities in the event editor also.
My preference would be to record the velocities but then do not transmit
them.
Good luck,
Mark
6:57 p.m.
Hallo,
Mark Knecht hat gesagt: // Mark Knecht wrote:
I agree here, but you need velocity info to detect noteon and noteoff,
but your organ synth probably should not care about the actual values
and instead play all notes as the same velocity.
For filtering I always use Pd, as it's very flexible and quick to do
all kinds of filters. Attached is a little patch which replaces all
velocities > 0 with 127. This is just five objects connected, I would
never care to use or write a special program for this kind of stuff,
which is quick to hack in Pd, Python, or whatever your "scripting
language" of choice is.
Ciao
--
Frank Barknecht _ ______footils.org__
7:36 p.m.
New subject: [linux-audio-user] pd and MIDI (was MIDI filter)
That looks keen, but I'm having a hard time figuring out how to get pd
to talk to my MIDI devices.
$ pd -alsa -listdev
reading startup file: /home/fugalh/.pdrc
input devices:
1. Sound Fusion CS46xx (hardware)
2. Sound Fusion CS46xx (plug-in)
3. Keystation (hardware)
4. Keystation (plug-in)
output devices:
1. Sound Fusion CS46xx (hardware)
2. Sound Fusion CS46xx (plug-in)
3. Keystation (hardware)
4. Keystation (plug-in)
API number 1
no midi input devices found
no midi output devices found
couldn't open MIDI input device 0
couldn't open MIDI output device 0
opened 0 MIDI input device(s) and 0 MIDI output device(s).
So it's seeing my keyboard as an audio device but not a midi device. Any ideas?
On Sun, 26 Sep 2004 22:40:17 +0200, Frank Barknecht <fbar(a)footils.org> wrote:
--
De gustibus non disputandum est.
27 Sep
27 Sep
5:44 a.m.
New subject: [linux-audio-user] pd and MIDI (was MIDI filter)
Hallo,
Hans Fugal hat gesagt: // Hans Fugal wrote:
The -listdev option for midi only works for Windows. On Linux, you
just specify the device you want to use with "-mididev NUMBER", where
NUMBER is the XX in /dev/midiXX plus one. So to use /dev/midi or
/dev/midi0 you use "-mididev 1", or to use /dev/midi20 you use
"-mididev 21". As Pd only knows rawmidi devices and not the ALSA
sequencer (-alsa is just for audio), you might need to load a virtual
midi card with snd-virmidi to be able to route midi data to sequencer
ports. See my howto on this at for example:
http://footils.org/cms/show/24
I suppose your Keyboard is midi device /dev/midi1. Then "-mididev 2"
should let you see events coming in, if you open the patch at the menu
entry: "Media -> Test audio and midi"
Ciao
--
Frank Barknecht _ ______footils.org__
6:32 a.m.
New subject: [linux-audio-user] pd and MIDI (was MIDI filter)
Hallo,
Frank Barknecht hat gesagt: // Frank Barknecht wrote:
And I forgot: "Media->Midi settings" will let you change and configure
devices at runtime, too. This not not permanent currently, though. Use
~/.pdrc for permanent startup options.
Ciao
--
Frank Barknecht _ ______footils.org__
12:29 p.m.
New subject: [linux-audio-user] pd and MIDI (was MIDI filter)
Thanks.
In the meantime I went ahead and wrote that filter. It's attached if
anyone's interested. Now that it's written anyway, I prefer it to pd
because it uses alsa (and therefore shows up in aconnect).
On Mon, 27 Sep 2004 10:15:33 +0200, Frank Barknecht <fbar(a)footils.org> wrote:
--
De gustibus non disputandum est.
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6 comments
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participants (3)
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Mark Knecht