The measurement and analysis on Chinese Mandarin syllable and phoneme articulation in band-limited condition

摘要

Chinese Mandarin speech articulation in band-limited condition were measured and analyzed by subjective evaluation experiments. The changing patterns of Chinese syllable, initial, final and tone articulation with cut-off frequency, bandwidth, center frequency and RBF were analyzed. Results show that Chinese syllable and phoneme articulation increase with the bandwidth or RBF rises and tends to get saturated gradually, the minimum bandwidth needed for achieving some certain articulation level is related to the center frequency. Under the same condition, tone articulation is highest, final articulation is higher than initial articulation, and syllable articulation is lowest. The best-fitting exponential function relationships between Chinese syllable, initial, final, tone articulation and RBF were respectively established on the basis of the least square method. Further, the perceptual relationships between syllable and initial, final, tone are analyzed, it is found that syllable articulation is highly correlated with initial, final and tone articulation, in which the relationship between syllable and initial is nearly linear, the relationship between syllable and final, tone are exponential, and the functional model of Chinese syllable articulation and initial, final, tone articulation is established.