VT/RCT/TLpro data

Ron Koval drwoodwind@hotmail.com
Tue, 26 Feb 2002 18:46:42


First off, thanks to everyone for all the nice words of encouragement.  My 
wife and I appreciate it.  I'll let you know as we find out any information.


Here is the experiment for today.  I don't have a SAT, so it is not 
represented in this test.  To compare the machine calculations, I used each 
in it's default mode and followed printed directions to sample notes and 
create a tuning.  Same piano, in a practice room.  Since RCT and TLpro use 
different default partials, direct comparison is not possible. VT lists 
multiple partials, so I can list RCT/VT and TLpro/VT.

partial/RCT#/VT# (from A0 to C8)

6___-11.18__-17.33
6___-10.25__-16.05
6___-9.41___-15.32
6___-8.63___-13.32
6___-7.89___-14.85
6___-7.20___-16.50
6___-6.55___-15.99
6___-5.96___-14.68
6___-5.40___-13.36
6___-4.87___-12.07
6___-4.36___-11.24
6___-3.88___-10.11
6___-3.45____-9.47
6___-3.02____-8.16
6___-2.61____-6.29
6___-2.29____-4.44
6___-1.96____-5.38
6___-1.66____-6.57
6___-1.38____-6.12
6___-1.08____-5.40
6___-0.77____-4.69
6___-0.41____-3.81
6___-0.05____-2.94
6____0.40____-2.13
3___-2.08____-7.42
3___-1.67____-6.23
3___-1.28____-4.49
3___-1.00____-2.75
3___-0.75____-3.81
3___-0.52____-5.11
3___-0.32____-4.78
3___-0.11____-4.19
3____0.12____-3.59
3____0.41____-2.82
3____0.69____-2.08
3____1.09____-1.38
3____1.53____-1.17
3____2.01____-0.88
3____2.53____-0.56
3____3.14____-0.21
3____3.83_____0.15
3____4.51_____0.53
3____5.22_____0.94
3____5.97_____1.39
3____6.75_____1.86
3____7.52_____2.33
3____8.30_____2.82
3____9.07_____3.36
2____2.98_____1.45
2____3.49_____1.48
2____4.03_____1.57
2____4.36_____1.74
2____4.78_____1.97
2____5.07_____2.24
2____5.39_____2.57
2____5.81_____3.08
2____6.31_____3.74
2____7.01_____4.34
2____7.69_____5.02
2____8.75_____5.97
1____4.25_____1.75
1____4.82_____1.80
1____5.44_____1.95
1____6.13_____2.20
1____6.92_____2.54
1____7.68_____2.95
1____8.47_____3.44
1____9.35_____4.04
1___10.26_____4.71
1___11.21_____5.40
1___12.16_____6.14
1___13.19_____6.93
1___14.32_____7.75
1___15.50_____8.12
1___16.75_____8.56
1___17.37_____9.05
1___18.33_____9.70
1___18.84____10.65
1___19.45____11.68
1___20.48____13.07
1___21.77____14.82
1___23.78____17.29
1___25.74____19.60
1___29.05____22.10
1___33.18____24.02
1___38.33____25.92
1___43.48____28.08
1___48.64____29.77

Wow! I just typed this out; I've never seen a tuning diverge this much even 
in the middle.  Hmmmm.... Let's see how TLpro compares.  Remember, these are 
different partials being compared this time.  Also, these aren't tweaked 
tunings, just using the default settings.

partial/TLpro/VT

6__-6.15___-17.33
6__-5.78___-16.05
6__-5.42___-15.32
6__-5.08___-13.32
6__-4.76___-14.85
6__-4.44___-16.50
6__-4.13___-15.99
6__-3.83___-14.68
6__-3.54___-13.36
6__-3.26___-12.07
6__-2.98___-11.24
6__-2.71___-10.11
6__-2.44____-9.47
6__-2.18____-8.16
6__-1.91____-6.29
6__-1.65____-4.44
6__-1.38____-5.38
6__-1.11____-6.57
6__-0.83____-6.12
6__-0.55____-5.40
4__-2.65____-9.70
4__-2.36____-7.97
4__-2.07____-6.75
4__-1.79____-5.66
4__-1.51____-4.45
4__-1.23____-3.88
4__-0.95____-3.31
4__-0.67____-1.96
4__-0.39____-2.60
4__-0.09____-3.44
4___0.20____-2.85
4___0.51____-2.23
2__-1.47____-4.75
2__-1.28____-3.97
2__-1.09____-3.29
2__-0.90____-2.58
2__-0.70____-2.35
2__-0.50____-2.13
2__-0.30____-1.88
2__-0.09____-1.61
2___0.13____-1.32
2___0.36____-1.01
2___0.59____-0.66
2___0.84____-0.29
2___1.10_____0.10
2___1.38_____0.53
2___1.67_____0.99
2___1.98_____1.44
1___0.00_____0.00
1___0.17____-0.10
1___0.35____-0.16
1___0.54____-0.17
1___0.74____-0.11
1___0.95_____0.04
1___1.17_____0.25
1___1.42_____0.51
1___1.67_____0.84
1___1.95_____1.10
1___2.24_____1.43
1___2.56_____1.79
1___2.90_____1.75
1___3.26_____1.80
1___3.65_____1.95
1___4.07_____2.20
1___4.52_____2.54
1___5.01_____2.95
1___5.53_____3.44
1___6.09_____4.04
1___6.70_____4.71
1___7.36_____5.40
1___8.06_____6.14
1___8.83_____6.93
1___9.65_____7.75
1__10.53_____8.12
1__11.49_____8.56
1__12.52_____9.05
1__13.63_____9.70
1__14.83____10.65
1__16.12____11.68
1__17.52____13.07
1__19.03____14.82
1__20.65____17.29
1__22.41____19.60
1__24.30____22.10
1__26.34____24.02
1__28.55____25.92
1__30.93____28.08
1__33.50____29.77


So, there ARE differences between the tuning gear out there.  This is a 
tough piano, I'm sure a "better" one would show less of a difference.  I 
wanted to throw the numbers out there to substantiate the claims that 
something new is going on with the VT tunings.  I'm not, however, going to 
take the time to tune this piano with each of the different gear and report 
back.  I know from past experience that each might be acceptable, but I 
prefer the VT tunings.

Ron Koval







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