AMountain Posted November 20, 2021 Share Posted November 20, 2021 It's the first time i did something with MIDI. Maybe i did something wrong. The situation: Running parallely 2 Helix LT. All presets have always as final block a gain-block to which EXP2 is assigned for vol-control (+6db -> +12db). Problem: I want to drive the gain-blocks in both Helixes parallely, with one Exp-pedal. Solution(trial 1): Did it via MIDI, but it does not work to my satisfaction; i describe what i did: 1. Midi-cable (Helix1 MIDI-out -> Helix2 MIDI-in). 2. Assigning in every preset of both Helixes to the mattering final gain-block the EXP2-pedal. 3. HX-Edit, for Helix1: Window -> CommandCenter: Set for the EXP2 the MIDIchannel on Base, CC on 2, min-value on 1, and max-value on 127. Result: The gain-block of Helix2 is reacting as wished -- i can drive with the EXP2-pedal of Helix1 the gain-block of both Helixes parallely, but: When i change now in the Helix2 the preset, the gain-block there is not directly in the actual position of the EXP2-pedal of Helix1; for instance: The gainblock of the preset in Helix1 may then work with +6db and the of Helix2 with+12db. I have first to move the EXP2-pedal of Helix1 up (or down), then the gain-block in Helix2 reacts to this movement and in continuation equalizes to the in the Helix1. This disturbs completely while playing. Question: Is there any trick so that when i change the preset in Helix2, the gain-block there is immediately in the actual real position of the EXP2-pedal of the Helix1 (i.e. other MIDIchannel-setting, other CC, and/or other value parameters, or a special setting in 'global settings'->MIDI/Tempo) ? If there is no trick, then can i use CV-out for to achieve what i want? And if that is no option, can i buy an external EXP-pedal with two outs (or an Y-cable) and connect it to both Helixes? With that one, i think, both gain-blocks would always adjust immediately to its actual, real position. However, it would be an expensive solution. EDIT , 12/12/2021: This thread became finally very long, there were appearing more problems of which some were solved and some have to wait for an answer because i have to wait for to get some parts (extrnl.EXP-pedal). So i will here make an interim-report: Problem1: That's the above described one. That the same (gain)block in the next preset does not automatically & immediately adjust to the actual position of the via MIDI connected EXP-pedal of another Hlx-unit is due to the fact that MIDI-commands in a Helix work per preset, and thus always load with the values they were saved with (TY rd2rk for that one). Apart of that detail, it works perfectly. Post-Edit 12/24/2021 : Got the extrn. pedal (simple one fr. M-Audio), connected it with Y-cable to both units, and perfect: i can change the presets in both units and the same (gain)block in the next preset is automatically & immediately adjusted to the actual position of the pedal. For CV-Out, see Problem3, at the end (i tried it in another combination of units, which may be appliable for the described constellation here). Problem2: I got then another problem, for which i should have better opened an own thread. Connecting a HX-Effects (abrrvtn: HXFXs) to a Helix LT (or Floor) and driving all blocks in the HXFXs that need an EXP-pedal with the onboard-pedal of the big Helix-unit, via MIDI. Appeared the strange effect that from a certain quantity of EXP1-pedal assignments in one preset (of the HXFXs), the parameters in some of the blocks started not more to correspond correctly to the movements of the EXP-pedal. This started with 3-4 assignments, with 8 assignments it is superobvious and also the HXFXs then starts to freeze sometimes. Still i wait for technical explanations, however, practically, we have then to reduce the assignments to two or three, what should for normal presets be sufficiant. This is only valid for MIDI-driven EXp1-pedal assignment! It may well be that when you use an external pedal, this limitation will not appear and that you can then assign this pedal 7 or 8x per preset, or even more. When i will get the extrn. pedal, i will try that and report it here (in this post). Post-Edit 12/24/2021: With the extrn pedal, i can with it run in the HXFXs the 4 Wahs with their 2 assignments, they react all 4 correctly. Problem3: This is again for HXFXs (and HX Stomp perhaps): Seems that Line 6 makes all sims with default settings adapted to the capacities of the Floor & LT and in consequence all blocks that need an EXP-pedal have their Bypass by default assigned to the EXP1-pedal. Now, when one tries to use via MIDI the EXP-pedal of a Floor or LT for to drive such a block in the HXFXs, (s)he will have the surprise that when creating a preset in HX-Edit for the HXFXs, and choosing such a block with EXP-pedal assignment, this one will not appear in the scribblestrips & the LED-ring stays dark. The preset looks like that: and the unit: The solution is to open the Bypass assignment-window (right side of the edit) and to replace the default-EXP1 assignment there to the mattering Footswitch(es), in my case here FS2, 4 and 6. ---------------------------------------- CV-out: I am still not that clear about this possibility: I was adviced by some people here (in another thread on CV-out) not to do it. However, i found too in the >>The “Unofficial” Helix MIDI Guide<< following tip: Quote The “CV Out” [control-voltage-out] command does not send any MIDI messages out, but is used to control the “CV” connection on the back of the Helix Floor (the LT does not have that option). The “CV” connection can be used to control devices which have a ¼” expression pedal input jack. It’s essentially a simulated expression pedal. The “CV Out” message type in Command Center is then used to define the simulated expression pedal’s position. The “CV Value” parameter on the “CV Out” command relates to the position of the simulated expression pedal. In a non-english Floor-manual (the german one), it was precised that the CV-out is foreseen to drive analogue devices. The HXFXs is a digital device. In the original english manuals, this limitation is not mentioned (at least i did not encounter it). Now, the 1/4jack-entry of an external Pedal, too in a digital device, is analogue. However: I tried it rapidly for to drive the three blocks in the above preset (foto): Had to turn down in the Floor the CV-value parameter in the CommandCenter to 36 (i believe to remember) and then the sweeping-angle of the pedal was adjusted correctly and the driven blocks in the HXFXs did what they should. But: I had the impression all LED-rings and the scribble-strips started to "flicker", as if they would get changing voltages and in regard of the warning advices i had got, and that it is an "unofficial" guide, and that the german manual specified on analogue devices, i stopped with further trials. Basically, it functioned, but i do not know if the HXFXs or a Stomp would get dammaged. In case, better ask the line6 service if they allow/ recommand that application. I refrain from any responsibility here. Thanks to rd2rk and to datacommando. EDIT , 01/31/2022: Sad: line 6 service denied me after the first (welcome)reaction, although that i renewed my request several times. No more reaction until the ticket finally turned unvalid. Strange behavior. Perhaps the Pete there is rd2rk, this would explain me this behavior. If not, then i have no explanation. However: Thus i got no answer to the question if we can connect a HX-Effects to the CV-out of a Hlx.Floor. And too no answer to the question if the MIDI-overloading is normal; but in this matter, i read meanwhile that overloading MIDI can in case stress the receiving unit to the point of freezing, this would correspond to my experience here. So i would answer this question with yes, the HX-Effects can freeze because of too much MIDI-commands, more than three MIDI pedalfunction-commands per preset i wouldn't recommend. Meanwhile i bought a second ext. pedal for the HX-Effects and it did never more freeze (and too no dis-function, even not with my multi-Wah-test-preset). Quote Link to comment Share on other sites More sharing options...
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