A Study for the Effect of Widened Auditory Filter of Hearing Impaired Listener
The reduced frequency selectivity is a typical phenomenon of sensorineural hearing loss. In this paper, we made modeling of reduced frequency selectivity for hearing impaired listener. The model of reduced frequency selectivity was generated with bandwidth control algorithm based on ERB(equivalent rectangular bandwidth) of auditory filter. In other to examine the effectiveness of model, we compared PESQ(perceptual evaluation of speech quality) score and LLR(log likelihood ratio) score with 36 Korean worlds of two syllables. To verify the effect on noise condition, we mixed white and babble noise with OdB and -3dB SNR to speech words. As the result, PESQ score is lower as extending bandwidth of filter however LLR score is almost same. It means that nonlinearity and widen auditory filter characteristics caused by reduced frequency selectivity could be reflected in bandwidth control algorithm.
auditory filter reducedfrequency selectivity ERB PESQ LLR
Hongsub An Euichul Jeong Youngrok Song Sangbang Choi Dongseok Jeong Sangmin Lee Sangbang Choi Dongseok Jeong Sangmin Lee
Department of Electronic Engineering Inha University Incheon, Korea Department of Electronic Engineering Institute for Information and Electronics Research Inha Univers
国际会议
上海
英文
907-909
2011-10-15（万方平台首次上网日期，不代表论文的发表时间）