The singing frequency ( pitch) is an important criterion for measuring the
singer's singing ability.
The“tone deafness”is the phenomenon that a singer's singing frequencies are
higher or lower than the music frequencies.
Based on the spectrum analysis the relative deviation of the frequency is
quantitated determined. With the
randomly collected cappella records as the research object，the relative
deviation of the frequency approximately follow
a normal distribution with mean 0 and standard deviation 0.03507. Thus，it
is possible to define the“musical
expression deviation”for each singer by providing scores of singing
precision and to propose a feasible algorithm in evaluations of amusia.
Just Accepted
