I control my H9K using a mac mini “brain” and a set of iPhone touchOSC clients, one for each band member. It’s important that all the phones show the same knob values for anything MIDI mapped on the H9K, like a mic volume level for example. To accomplish this, I keep a source of truth for what each H9K knob “should” be set to in a script that runs on the mac mini. This source of truth initializes to -24db on boot, then can be adjusted via the phones. I have the mac and H9K on a power strip so they always initiate their boot sequence at the same time.
The H9K will boot up with a knob value from the previous night though, so when I boot up the mac mini and H9K I need the mac to write it’s source of truth value onto the H9K. The H9K takes longer to boot up than the mac, hence the desire for some way to programmatically determine when the H9K is ready to receive MIDI and modify knob values. I currently do that by waiting 3 minutes from when the mac finishes booting, but it would be more precise if I could run a timer from when USB feedback begins.
I’ve attached a photo of my MIDI feedback settings, but unfortunately with the MIDIMonitor app you recommended I don’t see any signal coming back from the H9K after a signal gets sent. Do you have any other ideas for debugging steps?
