Gestural Mixing With The KMI K-Mix, Leap Motion & Web MIDI

Keith McMillen Instruments shared this short demo of gestural mixing, using their K-Mix programmable mixer, a Leap Motion controller and Web MIDI.

Whether or not you’re interested in gestural mixing, the video demonstrates how the K-MIx’s extensive MIDI support lets it be controlled just about any way that you want.  Continue reading

Keith McMillen Instruments K-Board Pro 4 MIDI Controller (Sneak Preview)


At the 2016 NAMM Show, Keith McMillen Instruments was previewing their K-Board Pro 4 – a four octave MIDI keyboard controller that offers true three-dimensional control, per key.

The K-Board Pro 4 is a Class-Compliant USB-powered MIDI contorller that captures velocity, continuous pressure, and both horizontal and vertical position. This gives you continuous expressive control over individual notes, not offered by traditional keyboards.

Here’s a video demo from the show floor, via Kraft Music: Continue reading

Keith McMillen Instruments’ K-Mix: a closer look

K-Mix_whitebg_rightsideforward_02 After being previewed at The NAMM Show last winter, Keith McMillen Instruments’ new mixer / audio interface / MIDI controller, the K-Mix, began shipping last week.

We got to see an early K-Mix prototype at the 2015 Winter NAMM, but Synthtopia staff won’t have a chance to see the finished version of the product until later this week at the 2016 NAMM Show.

In the meantime, author and research engineer Gina Collecchia has had a recent extended opportunity to check out and work with the K-Mix.  She offered to share her impressions and findings with Synthtopia readers:

“The K-Mix mixer by Keith McMillen Instruments is an innovative mixing interface, with a lot of features.
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Keith McMillen Instruments K-Mix Audio Interface, Control Surface & Programmable Mixer Now Available


Keith McMillen Instruments has announced that the K-MIX, a new Mac OS X-compatible audio interface and programmable mixer, is now available.

The K-Mix looks different than other mixers and it’s because KMI founder Keith McMillen wanted a mixer that was different than the mixers that were available. “I needed a very special mixer that did not exist,” explains McMillen, “a fully-programmable, MIDI-controlled, ultra-high-quality portable mixer.”

“Not having a mixer that could do all of this, when wanting to play live in a group without a sound man, was heartbreaking,” adds McMillen. “K-MIX had to be capable of tying all of my needs together — from live inputs to USB interfaces — to then operate as a fully-programmable stage mixer.”

The K-Mix is ‘not your grandma’s mixer’, according to KMI.  It has no moving parts, so it can be used as a portable mixer, without the fear of snapping off a fader or knob, while still giving you top audio quality, mixer functionality and control. Continue reading

Keith McMillen Instruments Launches KMI Labs

Keith McMillen Instruments, makers of alternative MIDI controllers and audio interfaces like the QuNeo, QuNexus, K-Board and Soft Step and 12 Step conrollers, have announced the launch of KMI Labs, a showcase for the technologies developed at the company.

Preliminary technologies showcased at KMI Labs include

  • smart fabric (which senses variation in pressure and changes resistance as it is compressed) used in the company’s MIDI controllers
  • the Acoustic Instrument Message (AIM) protocol, which performs a spectral analysis of the sound from each individual string to turn timbre into synth commands and can run over standard MIDI

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The K-Board Pro 4 Promises Polyphonic Multidimensional Control, With A Traditional Keyboard Layout

Keith McMillen Instruments shared another sneak preview video of their upcoming K-Board Pro 4 Polyphonic Multidimensional Controller.

The K-Board Pro 4 is laid out like a traditional keyboard controller, but offers expressive control, per note, that’s not available with most keyboard controllers. Continue reading

Keith McMillen Teases New K-Board Pro 4 Expressive MIDI Controller

Keith McMillen Instruments today released this teaser video for the K-Board Pro 4 – a new $495 expressive keyboard MIDI controller.

The company has not announced details on the new K-Board Pro 4 yet, but it’s clear from the video that this builds on their experience with expressive MIDI controllers, but is much closer in form to a traditional keyboard.  Continue reading

KMI Tutorial Explains Google Chrome’s Web MIDI API

With the newest version of Google Chrome, which came out a few weeks ago, the browser has added support for hardware MIDI – meaning that you can now use your MIDI controllers to play web-based music software. Continue reading