Frequently Asked Questions
How many CC messages can you send per pressure region?
We haven't found an upper limit yet. 50 works fine. You're not restricted to just CC either: PC , Note On / Off, aftertouch, pitchbend, turning on and off MIDI clock, tap for the master MIDI clock if Poly Expressive is sending clock.
Can you make the mats any color you want?
Yes. In the app you can set any color you want. You can also totally customise the PDFs in in a program like Inkscape if you want to add logos or add any decorative elements.
How many switches can you have?
There isn't any upper limit. We find more than 40 makes them too small to use without pointy shoes. 15 - 20 is a comfortable number.
Latency / response time is very important for live looping. How low is the latency?
The latency is < 1ms, which is imperceptible. We can set it down to as low as 10 microseconds but the extra time lets us get better velocity measurement and 1ms is already extremely low.
Is Poly Expressive more beer spill proof than other MIDI controllers?
We don't recommend spilling drinks on any electronics or instruments in general but Poly Expressive is more spill resistant, as it doesn't have places for liquid to enter apart from the connectors. This is a lot less than traditional controllers which have switches on the top surface. Check out the video of me pouring a beer on it.
Can Poly Expressive send MIDI clock, without using a computer?
Yes. You can set times with tap tempo or have have an area set a specific value, for example 130 BPM.
Is Poly Expressive tougher than other MIDI controllers?
We haven't destructively tested other MIDI controllers but the coated polycarbonate and aluminium composite construction of Poly Expressive is very sturdy. Coated polycarbonate is an expensive material but we think the long term reliability and light weight is worth it. If you want to see coated polycarbonate being tested, look on YouTube for Lexan MR10 or Makrolon AR. Also check out the video of me playing Poly with a hammer.
How big is Poly Expressive?
Standard Poly expressive to suit A3 / ledger / tabloid paper
The whole area: 22.2" x 13.8" / 565 mm X 350 mm
The active pressure sensing area 18.5" x 11.6" / 469 mm X 294 mm.
Poly Expressive Mini, to suit US Letter / A4 paper
Final dimensions not confirmed yet but approximately: The whole area: 13.8" x 11.1" / 350 mm X 282 mm
Half the area of the standard version.