Chinese Mandarin Speech Intelligibility under Band-limited Transmission Conditions
Siyu Zhang, Hui Song · 2017 IEEE 2nd Information Technology, Networking, Electronic and Automation Control Conference (ITNEC) · 2017
Chinese Mandarin speech intelligibility scores were obtained according to subjective speech listening tests under different band-limited transmission conditions, and the varying patterns of Chinese speech intelligibility with cut-off frequency, bandwidth, center frequency and RBF were analyzed. The results show that speech intelligibility increases with the bandwidth rises and tends to be saturated gradually, the minimum bandwidth needed for achieving certain speech intelligibility level is related to the center frequency, and the contribution of frequency components below about 2500Hz for Chinese speech intelligibility is basically equal to those components above 2500Hz. The fitting curves and function relationships between subjective Chinese speech intelligibility and objective band-limited parameters were respectively established which could be used to evaluate or predict Chinese speech intelligibility under band-limited transmission conditions.