Objective Evaluation Method of Broadcasting Vocal Timbre Based on Feature Selection

Table 2

Feature classification parameters.

Source parameters	Short-term average energy, short-term average amplitude, pitch frequency, short-term energy change rate,; long-term average energy, fundamental frequency change rate
Vocal tract parameters	Formant frequency, formant bandwidth, linear prediction cepstrum coefficient, line spectrum frequency
Human hearing parameters	Mel frequency cepstrum coefficient, cochlear frequency cepstrum coefficient,; and perceptual linear prediction coefficient