Flame uMM Midi Merge/Thru A/B Converte

The uMM combines a MIDI merger, two independent THRU distributors and a TRS-A/B converter in just a small 4HP module. All sockets on the module are in MIDI-TRS-B format.

The basis of the MIDI merger with three inputs and three outputs is a small, powerful ARM processor with sufficient buffer memory. Up to three MIDI streams are mixed together on one output and can also be tapped via two additional outputs. Two LEDs signal how the merger works: one LED shows MIDI activity at the inputs and a second warns of too much data at the inputs.

The second functional group consists of two independent, separate MIDI-THRU distributors. The MIDI data at the respective MIDI input can be picked up and distributed at the three underlying THRU outputs. If necessary, both units can be made into a 1-to-5 distributor by connecting an output from the left group to the input from the right group (stereo cable).

The third functional group is a passive TRS-A to B converter. The TIP and RING pins on the stereo socket are swapped. For example, plug a stereo cable from a TRS-A output into the first jack and a stereo cable from a TRS-B input into the other jack. A MIDI-TRS-A can be connected to a MIDI-TRS-B module. This is also possible the other way around.