8/23/2023 0 Comments Supermode tell me why midiA photo of the back of my FH-1 with its jumpers J1-J8 in these positions is shown here (you can click on it to make it larger): the lower jumper position is for +/– 5v the upper position is for 0-10v. 0-5v probably would have sufficed – especially for the gate output – but some modules have extended voltage ranges, and I could always patch in an attenuator for inputs that had more limited ranges. I decided I wanted the pitch CV, key velocity, faders, and LFO (outputs 1, 3, 6, 7, and 8) to use biploar +/– 5v ranges, and the gate, aftertouch, and mod wheel (outputs 2, 4, and 5) to have 0-10v ranges. This required me to think ahead about what voltage range I wanted for each controller. Each can be set to +/– 5 volts, 0-5 volts, and 0-10 volts. The Expert Sleepers FH-1 allows you to set the voltage ranges on each output by changing jumpers on the back of the module. Therefore, we need to rewire either the MIDI controller or the FH-1 to cobble together a single, virtual, super-mode that does all that we want. There is no one mode on the FH-1 – or any MIDI to CV/Gate converter, for that matter – which does all of these things. Two of the faders controlling the speed and amplitude of an LFO generated by the FH-1, appearing on Output 8.Two of the faders providing direct control voltage output as additional performance controls, appearing on Outputs 6 & 7.A monophonic keyboard with pitch control voltage, gate, key velocity, aftertouch, and mod wheel appearing on Outputs 1-5.I want to map these controllers to the following outputs on a single FH-1: It also has a mod wheel and four touch faders (as well as other controllers such as buttons and pads). I have an Akai MAX25 that supports key velocity and aftertouch. To give the examples below some meaning, let’s sketch out a specific task. This article will not be a comprehensive guide to accessing every possible option the FH-1 offers (it also has polyphonic and trigger-based key modes, as well as a sequencer, MIDI clocking, and more), but it will help you crack the code to make it do what you want. I’ll outline both approaches below, as well as touch on some of the additional power inside the FH-1 such as taking advantage of its software LFOs. Now, Expert Sleepers has created an online interface where you can set your desired mappings via a group of pop-up menus, and the web page in turn will generate the required hex file for you to install into the FH-1. Previously this required a bit of pseudo-coding as well going into a command line interface on your computer to generate the required hex file. If your MIDI controller is not that flexible and won’t let you assign, say, the mod wheel to a different channel than the keyboard, then instead you need to “rewire” how the FH-1 responds to messages. ![]() Then you can program your MIDI controller to send those messages on the required channels. The secret is understanding the FH-1’s charts for how it decides to route a given MIDI message to one of its outputs. Since the FH-1 can do so many things at once depending on the MIDI message it receives, it can be initially daunting to figure out what input is going to produce what output. ![]() If instead a pair of faders sends MIDI Continuous Controllers #00 & 01 to the FH-1 on MIDI Channel 1, the FH-1 will send their corresponding voltages to Outputs 1 & 2. For example, if a Note On comes in on MIDI Channel 1, it switches into a mode where it assigns the pitch CV to Output 1 and the gate to Output 2. Instead, the FH-1 is programmed to look for MIDI messages on specific channels, and will seamlessly change between modes based on what it receives. More importantly, the FH-1 has all of its output modes available simultaneously without the need to change modes on the front panel. The base unit comes with eight outputs, which can be expanded in groups of 8 up to 64 outputs. That’s why I was attracted to the Expert Sleepers FH-1 ‘faderHost’. Many converters also assign what outputs they provide based on specific operating modes you have to choose between, such as duophonic with velocity, four voice polyphonic with no velocity, all sliders, etc. However, very few MIDI to control voltage + gate ( CV/Gate) converters have enough outputs to take advantage of all these performance inputs. Modern MIDI controller keyboards come with a lot of input options: Keys with velocity and aftertouch mod and pitch wheels assignable sliders even assignable trigger pads and switches. How to access the power contained inside this highly versatile USB MIDI to CV converter
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