Subject: Re: [ecasound] Xmas, effect switching with midi footswitches
From: janne halttunen (jhalttun_AT_pp.htv.fi)
Date: Fri Dec 27 2002 - 12:21:46 EET
On Wed, 25 Dec 2002 22:56:46 +0100
Raoul Bönisch <jkl345_AT_gmx.net> wrote:
> I use ecasound as a realtime effects processor for my guitar
> and would like to switch effect presets with my midi footswitches
> without any clicks and noises. One way is setting up several chains,
> muting them, unmute one for playing and then switch the "preset" with
>
> c-mute
> c-select <other-chain>
> c-mute
>
> A disadvantage is, that reverbs and delays wouldn't fade out but
> would immediatly be turned off. Another difficulty is, that I can't
> imagine a way to do all this with my footswitches except for writing
> a new application doing exactly this.
>
> Is there an easy way to switch effect presets with midi foot switches
> with the existing ecasound?
There is the -km controller.
man-page says:
-km:fx-param,start-value,end-value,controller,channel
MIDI continuous controller (control change messages). Messages
on the MIDI-channel 'channel' that are coming from controller
number 'controller' are used as the controller source. As recom-
mended by the MIDI-specification, channel numbering goes from 1
to 16. Possible controller numbers are values from 0 to 127. The
MIDI-device where bytes are read from can be specified using -Md
option. Otherwise the default MIDI-device is used as specified
in ~ecasound/ecasoundrc (see ecasoundrc(5)). Defaults to
/dev/midi.
---example:
# amplify, midi controller and reverb -ea 100 -km 1,0,100,number_of_your_midi_control,number_of_midi_channel \ -ete 10,100,100
In theory, this should mute and unmute your effect-chain, if you have the right control and channel specified.
control numbers:
midi_control_numbers={ 0 : 'Bank Select (coarse)', 1 : 'Modulation Wheel (coarse)', 2 : 'Breath controller (coarse)', 4 : 'Foot Pedal (coarse)', 5 : 'Portamento Time (coarse)', 6 : 'Data Entry (coarse)', 7 : 'Volume (coarse)', 8 : 'Balance (coarse)', 10 : 'Pan position (coarse)', 11 : 'Expression (coarse)', 12 : 'Effect Control 1 (coarse)', 13 : 'Effect Control 2 (coarse)', 16 : 'General Purpose Slider 1', 17 : 'General Purpose Slider 2', 18 : 'General Purpose Slider 3', 19 : 'General Purpose Slider 4', 32 : 'Bank Select (fine)', 33 : 'Modulation Wheel (fine)', 34 : 'Breath controller (fine)', 36 : 'Foot Pedal (fine)', 37 : 'Portamento Time (fine)', 38 : 'Data Entry (fine)', 39 : 'Volume (fine)', 40 : 'Balance (fine)', 42 : 'Pan position (fine)', 43 : 'Expression (fine)', 44 : 'Effect Control 1 (fine)', 45 : 'Effect Control 2 (fine)', 64 : 'Hold Pedal (on/off)', 65 : 'Portamento (on/off)', 66 : 'Sustenuto Pedal (on/off)', 67 : 'Soft Pedal (on/off)', 68 : 'Legato Pedal (on/off)', 69 : 'Hold 2 Pedal (on/off)', 70 : 'Sound Variation', 71 : 'Sound Timbre', 72 : 'Sound Release Time', 73 : 'Sound Attack Time', 74 : 'Sound Brightness', 75 : 'Sound Control 6', 76 : 'Sound Control 7', 77 : 'Sound Control 8', 78 : 'Sound Control 9', 79 : 'Sound Control 10', 80 : 'General Purpose Button 1 (on/off)', 81 : 'General Purpose Button 2 (on/off)', 82 : 'General Purpose Button 3 (on/off)', 83 : 'General Purpose Button 4 (on/off)', 91 : 'Effects Level', 92 : 'Tremulo Level', 93 : 'Chorus Level', 94 : 'Celeste Level', 95 : 'Phaser Level', 96 : 'Data Button increment', 97 : 'Data Button decrement', 98 : 'Non-registered Parameter (fine)', 99 : 'Non-registered Parameter (coarse)', 100 : 'Registered Parameter (fine)', 101 : 'Registered Parameter (coarse)', 120 : 'All Sound Off', 121 : 'All Controllers Off', 122 : 'Local Keyboard (on/off)', 123 : 'All Notes Off', 124 : 'Omni Mode Off', 125 : 'Omni Mode On', 126 : 'Mono Operation', 127 : 'Poly Operation'}
You can have these in several chains, controlling each with different controller. Downside is that you need the processing power for all your effects simultaneusly.
janne
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