, as
indicated in Figures 9.32 and 9.33. Such a
desired curve can be found in the musical acoustics literature
[491] or it can be easily generated from a good piano-hammer
model (§9.3.2) striking the chosen piano string model.
In the commuted piano synthesis technique, it is necessary to fit a
filter impulse response to the desired hammer-string force-pulse shape
for each key and for each key velocity
, as
indicated in Figures 9.32 and 9.33. Such a
desired curve can be found in the musical acoustics literature
[491] or it can be easily generated from a good piano-hammer
model (§9.3.2) striking the chosen piano string model.
For psychoacoustic reasons, it is preferable to optimize the force-pulse filter-coefficients in the frequency domain §8.6.2. Some additional suggestions are given in [469,523].
