logic

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Level 1

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logic

Logic is somehow translating expression (CC11) message into audible volume changes in a variety of virtual instruments. For example, a virtual piano gets louder and softer when I record CC11 changes, even though the recorded controller messages show up in Logic as expression, NOT volume changes. When mapping an expression pedal to sweep pedal frequency of a virtual wah-wah, the volume changes concurrently with the frequency in a totally unnatural way, even though the controller messages showing up in Logic are all CC11, NOT CC7. And yes, I know that volume is affected at the extreme ends of wah sweeps. This is different; it's a smooth volume change throughout the range of the sweep.

I've tried creating a brand new project with only one Logic-native instrument, and the same problem occurs,

My keyboard is a Studiologic SL88 Grand, and the software control panel for the keyboard shows the pedal is mapped to CC11, NOT CC7. My version of Logic is 10.4.8, running under 10.14.6.

Apple tech support can't help me unless I upgrade to current version of Logic, which I'm not willing to do. Can anyone help me to sort out why Logic is always responding to CC11 messages with volume changes?

Mac Pro, macOS 10.14

Posted on Jun 5, 2021 2:34 PM

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Answer 1

Top-ranking reply

Pancenter

Level 6

14,686 points

Jun 5, 2021 6:56 PM in response to Ler666

This may or may not help.

Go to the upper left Logic Pro menu, to Control Surfaces then to Setup. What do you have showing in the right side panel You can delete everything there start anew. There's a chance expression has been mapped incorrectly. Expression (CC 11) does change volume. You can go to controller assignments and map Expression to an unused CC number.

The Keyboard may be able to assign CC 11 expression to a different CC number.

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Answer 2

Pancenter

Level 6

14,686 points

Jun 6, 2021 11:47 AM in response to Ler666

MIDI CC (Control Change) message allows modification of MIDI playback.

There are simple controllers that act as a switch like the on/off sustain or hold pedal (CC 64).

Or.... continuous controllers like Modulation, Panning and Expression which send out a stream of messages.

0 Bank Select (MSB)
1 Modulation Wheel
2 Breath controller
3 = Undefined
4 Foot Pedal (MSB)
5 Portamento Time (MSB)
6 Data Entry (MSB)
7 Volume (MSB)
8 Balance (MSB
9 = Undefined
10 Pan position (MSB)
11 Expression (MSB)
12 Effect Control 1 (MSB)
13 Effect Control 2 (MSB)
14 = Undefined
15 = Undefined
16-19 = General Purpose
20-31 = Undefined
32-63 = Controller 0-31
64 Hold Pedal (on/off)
65 Portamento (on/off)
66 Sostenuto Pedal (on/off)
67 Soft Pedal (on/off)
68 Legato Pedal (on/off)
69 Hold 2 Pedal (on/off)
70 Sound Variation
71 Resonance (Timbre)
72 Sound Release Time
73 Sound Attack Time
74 Frequency Cutoff (Brightness)
75 Sound Control 6
76 Sound Control 7
77 Sound Control 8
78 Sound Control 9
79 Sound Control 10
80 Decay or General Purpose Button 1 (on/off) Roland Tone level 1
81 Hi Pass Filter Frequency or General Purpose Button 2 (on/off) Roland Tone level 2
82 General Purpose Button 3 (on/off) Roland Tone level 3
83 General Purpose Button 4 (on/off) Roland Tone level 4
84 Portamento Amount
85-90 = Undefined
91 Reverb Level
92 Tremolo Level
93 Chorus Level
94 Detune Level
95 Phaser Level
96 Data Button increment
97 Data Button decrement
98 Non-registered Parameter (LSB)
99 Non-registered Parameter (MSB)
100 Registered Parameter (LSB)
101 Registered Parameter (MSB)
102-119 = Undefined
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 Mode

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Answer 3

Ler666 Author

Level 1

10 points

Jun 5, 2021 4:54 PM in response to Ler666

Just to eliminate the issue of wah wah filter sweep introducing perceived volume changes, I set an LFO to modulate Osc1 fine tuning, then "learn"ed the LFO rate to my expression pedal. Once again, sweeping the pedal resulted in unwanted volume changes in addition to the desired changes to vibrato speed. Looking at the recorded data, only expression data was recorded- no volume data. Still, the expression pedal is affecting volume no matter what else I program it to do. The unwanted volume changes are reproduced on playback as well. I've tried both a Roland EV5 and a Yamaha expression pedal, and I've tried both of the expression pedal inputs on my master keyboard, all with same result. This is making me nuts!

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Answer 4

Ler666 Author

Level 1

10 points

Jun 5, 2021 5:55 PM in response to Ler666

I also tried a different master keyboard (a Nord Electro)- same problem, so it's not the keyboard or the pedal.

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Answer 5

Ler666 Author

Level 1

10 points

Jun 6, 2021 10:14 AM in response to Pancenter

Thanks for the helpful reply, pancenter. I've never understood that expression (CC11) changes volume! I've reassigned my controller pedal to a different MIDI CC, and all is well now.

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