12 Aug
2005
12 Aug
'05
10:40 p.m.
$ aseqdump -p 80:1
Waiting for data. Press Ctrl+C to end.
Source_ Event_________________ Ch _Data__
80:1 Control change 0 1 69
80:1 Control change 0 1 70
but this information is useless to set up ecasound so I have tested with
gmidimon.
Wait a minute, aseqdump shows almost all the information you need to fill the
ecasound parameters properly. After the "Control change" text, you find
three columns:
* First column (under "Ch") is the channel number, starting from 0. MIDI
channels are usually numbered from 1 thru 16, but this program shows it
starting from 0, and up to 15, so you need to add 1 to the channel number
when using it on Ecasound.
* Next one, under "_Data_", is the controller number. MIDI controllers range
goes from 0 to 127. Each controller number means something, where 1 means
"modulation", 7="volume",...
* Last column, also under "_Data_", is the controller value, or amount. This
value changes while you move the fader, stick, or button on your MIDI device.
[...] (talking about gmidimon...)
it gives me this information :
Status Chan Data1 Data2 time
Control(176) 0 1 54 1123881037
I suspect I can use this information in ecasound so when I run ecasound
like that :
# ecasound \
> -G:jack,ecasound,notransport \
> -Md:rawmidi,/dev/snd/midiC2D0 \
> -a:6 -i:jack \
> -ea:1000 -km:1,0,1000,176,0 -o:jack
Ecasound syntax for MIDI continuous controllers is:
-km:fx-param,start-value,end-value,controller,channel
The number(176) displayed by gmidimon is the decimal value of the status byte
for the controller message (0xB0 in hex) and means that it is just a
controller message on channel 0. This program also displays MIDI channels
starting from 0 instead of 1. The 'Data1' column shows the controller number
(1), and 'Data2' shows the controller amount (54). Your command line could
be: "-km:1,0,1000,1,1"
What am I doing wrong ? And why the midi monitoring is
so erratic ?
Yes, you are being a bit erratic switching from one program to another
without stopping to learn what means the output of each one.
Regards,
Pedro