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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.
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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.
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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.
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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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