Modartt user forum - Roland KR7

Re: Roland KR7

null@example.com (dersidc) — Fri, 26 Mar 2010 22:16:41 +0000

I agree with Glenn on the linear velocity. I just made a few tweaks to mellow it down a bit.

Velocity = [0, 24, 62, 101, 127; 0, 22, 60, 95, 127]

Re: Roland KR7

null@example.com (Glenn NK) — Mon, 01 Mar 2010 01:19:32 +0000

Should add that the KR7 is a "cabinet" DP. I previously had a KR107, and I suspect it is also linear.

And I suspect that the other Rolands (HP107, HP207, HP307 for example) would also be.

Glenn

Roland KR7

null@example.com (Glenn NK) — Sat, 27 Feb 2010 17:47:32 +0000

Perhaps strangely, I found that this keyboard is linear from zero to 127.

Finding it difficult to actually play a velocity at a given value, I set up a midi file with known velocities. It starts with three notes on D3 (A440) with velocity = 127, followed by three notes on D3 with velocity = 1, then three notes on D3 with velocity = 12, 13, 12 etc. (MIDI only permits integer values - 12 / 13 / 12 is a compromise).

The first three notes at 127, set up the tempo, so one knows when to expect the next three with velocity = 1.

I will post this midi file "Velocity curve test file" is anyone wants to use it.

A3 - 127
A3 - 127
A3 - 127

D3 - 1
D3 - 1
D3 - 1

D3 - 12
D3 - 13
D3 - 12

D3 - 25
D3 - 25
D3 - 25

D3 - 37
D3 - 38
D3 - 37

D3 - 50
D3 - 50
D3 - 50

D3 - 62
D3 - 63
D3 - 62

D3 - 75
D3 - 75
D3 - 75

D3 - 87
D3 - 88
D3 - 87

D3 - 100
D3 - 100
D3 - 100

D3 - 113
D3 - 114
D3 - 113

D3 - 127
D3 - 127
D3 - 127

Glenn