Request: Roland FP-30

I used to own Kawai ES8, Korg Grandstage and spent a lot of time tweaking velocity curve in PTQ. I recently bought Roland FP10 and was surprised to see that no adjustment is needed. I find Normal, straight-line default curve the best fit for Pianoteq acoustic pianos.

Indeed it does. It's basically FP-30 with a bit less powrful speakers and more compact casing. Even no. of sounds is the same, though part of them are only accessible via Piano Partner app.

PHA-4 Standard is a bit on a heavy side, so standard PTQ curve is perfect for good dynamics control. One thing you can adjust is note-off velocity, since standard PTQ setting is fixed horizontal line and Roland supports note-off.

My FP50 seemed to favour the straight line default PT graph like the fp30 and 10 do.  AND they give you 127 which is more than my Yamaha P515 does.

I'm a newbie on pianoteq and I own the FP-10 as a controller. For me a velocity curve like this = [0, 1, 51, 74, 99, 127; 0, 0, 72, 96, 114, 127] is more confortable than the staight-line curve. I know it is totaly subjective because I've never played a grand concert piano ( ...or just once, ten notes on a grand concert steinway but I don't remember the sensation yet...). I've been playing for many years on a worn upright piano.
Playing on pianoteq ( with my old very good Seinnheiser HD540 headphone) is for me a really wonderfull sensation I never had with my acoustic Young-Chang.
Currently it is the "Steingraeber Warm" preset I prefer. But when I play the other instruments a long time I find them marvellous too.
More I find pianoteq much better than the intern sound of the FP-10.
(Please excuse me for my english)

Thank you very much for this! It plays like a gem!

I also use the fp-30 with DP-10 pedal and it plays so much better. I have the Dynamics slider at  50hz
The difference between pianissimo and Fortissimo is huge and so beutifull Impossible to get this range of sound on my 41y U1 , that I also love and play

Here's my velocity curve with a dynamic range of 68 dB:

Velocity = [0, 1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 15, 16, 17, 18, 20, 21, 22, 23, 24, 27, 28, 29, 30, 31, 32, 33, 34, 35, 39, 40, 43, 47, 48, 51, 52, 54, 55, 58, 59, 63, 64, 65, 66, 67, 74, 75, 76, 77, 78, 79, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 98, 99, 100, 101, 102, 103, 105, 106, 107, 109, 110, 111, 112, 113, 114, 116, 117, 120, 121, 123, 125, 126, 127; 0, 1, 1, 3, 4, 6, 7, 13, 23, 26, 28, 33, 37, 39, 42, 44, 45, 49, 50, 52, 53, 53, 56, 56, 58, 59, 59, 60, 62, 63, 63, 67, 69, 69, 73, 73, 76, 76, 78, 78, 81, 81, 85, 85, 86, 88, 88, 95, 95, 96, 98, 98, 99, 99, 100, 100, 101, 101, 102, 102, 103, 103, 105, 106, 106, 107, 107, 109, 109, 111, 112, 112, 114, 114, 115, 115, 117, 117, 118, 118, 119, 119, 121, 123, 123, 124, 124, 126, 126, 127]

I made a midi file playing C4 from velocities 1-127 with a spacing of every 2 seconds.
Then, I ran it thru pianoteq preset "Bluthner Player/Sound Recording" with the velocity curve at the normal (0,0) (127,127) to get a recording.
My FP-30, I recorded thru the headphone out/max volume, via my Motu M4's line in, to reaper DAW with the gain of +20.8 dB.

I wrote a program to compare the perceived loudness of the two recordings and have it spit out the difference, and velocity curve that would adjust for the difference.
I repeated this for dynamic ranges from 30->70 dB to find the one that matches best, which is how I got the velocity curve above at 68 dB dynamic range.

Here's the chart of perceived loudness:

Redline is pianoteq's loudness with default pianoteq velocity curve (@ 68 dB dyn range), and the green line is after my velocity curve is applied  (@ 68 dB dyn range).

The blue line is the FP-30's perceived loudness so that's the 'target curve'. My curve seems to hit pretty close.

I revisited this and saw that my math was wrong in a few places - some which I should've understood sooner like how loudness should be < 0 if my math was correct.
After corrections to my code, I hand simplified the resulting curve to get this:

Velocity = [0, 5, 7, 10, 14, 18, 24, 32, 127; 0, 5, 10, 21, 33, 41, 47, 56, 127]

It matches well with the Roland FP-30 with pianoteq's dynamic range set at 50.

(My velocity curve is the red line)
The simplified curve does miss the tiny bump in volume at around 75 input velocity but matches the roland's overall shape nicely.

I sampled the FP-30 by sending the midi values from my computer. This is all that's necessary to get the midi value => loudness mapping for the piano.

Something I forgot to mention is that my Key Touch setting on my FP-30 is set to 'Medium' (which is default I believe). I noticed if it's set to Heavy/SuperHeavy, it is indeed quite difficult to get MIDI values above 100. On Medium however, it seems alright to hit 127.

Since I matched my FP-30 at Medium keytouch, the curve I made is valid for matching what the action sounds like with the Medium keytouch setting, but not other settings.