Topic by klaberte

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  • klaberte
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Topic: [Newbie] MIDI interface mirror In and Out

I have a MIDI keyboard connected to the MIDI in of my BEHRINGER U-PHORIA UMC204HD, connected to PTq running on the latest version of Ubuntu Studio.

What I want is to reproduce, with as little latency as possible, the MIDI IN signal at the MIDI OUT of the same UMC204HD.  Essentially, I want the MIDI OUT to become a MIDI THRU, with all MIDI signals arriving on MIDI IN repeated at this MIDI OUT/THRU. Why?  I want to play on the piano keyboard, and have the sounds generated by two MIDI instruments at the same time, but the second one is a stand-alone MIDI sound module.  Basically, I want to daisy chain the MIDI signal.

Not sure if this is best done by somehow configuring the MIDI interface (UMC204HD), making an OS-level configuration on Ubuntu Studio, or configuring PTq to resend the same MIDI sequence to the MIDI Out.

This has to be a FAQ, but I promise I did spend some time searching....

Ken

Reply by stamkorg

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Re: [Newbie] MIDI interface mirror In and Out

I am not an expert of the midi, but I think an easy way to do that would be to use a Midi thru box, something like that:

https://www.thomann.de/fr/kenton_midi_thru_5.htm

Last edited by stamkorg (18-05-2018 09:54)

Reply by sjgcit

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Re: [Newbie] MIDI interface mirror In and Out

Unless I'm confused by what you want I think what you need to do can be done using the Jack audio system for MIDI connection.

Plug all your hardware into the computer,

Start Jack ( typically using QJackCtrl on Ubuntu - can't recall if you need to install it or it's in the default install. ).

Start Pianoteq.

In QJackCtrl there is a "connect" button and you can use that to link various bits of software and hardware MIDI to each other.

You basically need to create connections from your keyboard device to both Pianoteq and to your hardware.  That will simply route the same MIDI output from the keyboard to two MIDI inputs.  You may need to make the links indirectly using a few connections on the different tabs in the connect dialog (can't recall the precise details off hand).

Alternatively you should be able to do this with some DAW software.

StephenG