[Stk] Fwd: Improving support for iOS

[Richard Dobson]

On 12/09/2013 14:59, Gary Scavone wrote:
> It would be very difficult to express the controls in physical units.
> First of all, not all algorithms are physics-based models.  But even
> the physical models are generally not developed with respect to exact
> physical measurements and/or quantities.  There is also a trend in
> the modeling world to use dimensionless control parameters.
>

Also, a physical quantity is in principle unbounded with respect to 
range and level (e.g. pressure ranging from outer space to bottom of the 
ocean, temperature from absolute zero to the point of atomic fusion and 
above), whereas in any practical system you will be processing (or 
emulating) the output of some physical transducer which will necessarily 
represent some (arbitrarily) reduced and bounded range. In the end, any 
transducer must in principle generate a normalised signal (± 1.0), which 
may or many not be further mapped into a MIDI or some other digital 
range decided by the hardware or software; and thus must be defined and 
configured (calibrated?) by the user.

Richard Dobson