VOICING
Voicing is the process of equalizing the hardness (or
softness) of the felt of all the hammers of a piano so that one does
not sound brighter of louder than those around it. In my opinion
it is by far the most difficult task of a piano technician.
Although tuners can tune a piano with considerable background noise,
trying to voice a piano with any background noise at all would not be
well advised. I do not consider myself in any way an expert in
this area. I do think though that a tuner who does voicing should
be someone who actually plays the piano. In my opinion, a tuner
who does not play cannot adequately consider the factors that create
the volume of a note, the weight of the arm, hand, and finger on the
key.