Phonic feeling ability, the phonic feeling of acumen is the foundation of diapason technology.

The limits of phonic feeling is very deep wide, concern with diapason, but adduce is following a few:

(1) pitch feels: Tuner needs to have discern the ability of 441HZ, 440HZ and 439HZ pitch, can discern the population scale of a HZ is in about 2 millesimals fluctuation. Diapason technology can use physics to be patted acousticsly sound (Beat) phenomenon, accurate audition gives 0.5HZ pitch (Pitch) mobile.

(2) acoustic quality feels: Sharp acoustic quality move and deep culture are traditional, it is to make the postulate accord with acoustic quality of era culture setting, be like the world each piano of big odeum, have special acoustic quality idiosyncratic, these are idiosyncratic be by the technician that has feeling of special acoustic quality, improve phonic castanet to design ceaselessly and become.

(3) feels tinnily: The acoustic quality of piano is inherent. It is acquired diapason technician can be amended tinnily adjust. Tuner feels tinnily with his, adjust the position that make spring, angle that make spring, the soft hardness that adjusts phonic mallet with the needle... work etc, make a piano, can lose by force as what hit key or speed, and give out Protean tonal.

(4) still has harmony of tone feeling, scale feeling in addition feeling of enharmonic of feeling, strong weak sense, career move, it is the special ability with diapason indispensable technology.

(5) latter piano is sold in great quantities, service personnel grooms not easily again, with electronic instrument " look at diapason " special groom course emerge as the times require. Below this kind of circumstance, phonic feeling becomes is not the mainest diapason technique.