A Modified Speech Enhancement Algorithm for Electronic Cochlear Implant and Its Digital Signal Processing Realization_Journal of Biomedical Engineering

Authors：

WANGYulin ,  TIANXuelong

College of Bioengineering, Chongqing University, Chongqing 400030, China;

Corresponding author：

TIANXuelong, Email: xltian@cau.edu.cn

Keywords：

electronic cochlear implant; speech enhancement algorithm; digital signal processing; adaptive filtering

DOI：

10.7507/1001-5515.20140138

Video：

Export PDF Favorites Scan Get Citation

Abstract Full text Figures/Tables Video References Cited by

In order to improve the speech quality and auditory perceptiveness of electronic cochlear implant under strong noise background, a speech enhancement system used for electronic cochlear implant front-end was constructed. Taking digital signal processing (DSP) as the core, the system combines its multi-channel buffered serial port (McBSP) data transmission channel with extended audio interface chip TLV320AIC10, so speech signal acquisition and output with high speed are realized. Meanwhile, due to the traditional speech enhancement method which has the problems as bad adaptability, slow convergence speed and big steady-state error, versiera function and de-correlation principle were used to improve the existing adaptive filtering algorithm, which effectively enhanced the quality of voice communications. Test results verified the stability of the system and the de-noising performance of the algorithm, and it also proved that they could provide clearer speech signals for the deaf or tinnitus patients.

Citation： WANGYulin, TIANXuelong. A Modified Speech Enhancement Algorithm for Electronic Cochlear Implant and Its Digital Signal Processing Realization. Journal of Biomedical Engineering, 2014, 31(4): 742-746,754. doi: 10.7507/1001-5515.20140138 Copy

1.	孙晋松,田岚.一种基于改进谱减法的电子耳蜗语音增强算法[J].生物医学工程学杂志,2010, 27(1):188-192.
2.	PAULO S.R.DINIZ.自适应滤波算法与实现[M].第2版.北京:电子工业出版社,2004: 3-42.
3.	PALIWAL K, WOJCICKI K, SCHWERIN B ,et al. Single-channel speech enhancement using spectral subtraction in the short-time modulation domain[J]. Speech Communication, 2010, 52(5):450-475.
4.	张安莉,陈丹.一种变步长自适应滤波算法在信号消噪中的应用[J].西安工业大学学报,2010, 30(1):71-75.
5.	段正华,王梓展,鲁薇.一种改进的解相关LMS自适应算法[J].湖南大学学报(自然科学版),2006, 33(3):114-118.
6.	陈是知,姜蕊辉.TMS320F2812原理与开发实践[M].北京:中国电力出版社,2010: 2-24.
7.	DING H, LU J, QIU X J, et al. An adaptive speech enhancement method for siren noise cancellation[J]. Applied Acoustics, 2004, 65(4):385-399.
8.	刘威,胡爱群.基于相关增强的单信道信号分离[J].东南大学学报(自然科学版),2010, 40(3):464-470.

1. 孙晋松,田岚.一种基于改进谱减法的电子耳蜗语音增强算法[J].生物医学工程学杂志,2010, 27(1):188-192.
2. PAULO S.R.DINIZ.自适应滤波算法与实现[M].第2版.北京:电子工业出版社,2004: 3-42.
3. PALIWAL K, WOJCICKI K, SCHWERIN B ,et al. Single-channel speech enhancement using spectral subtraction in the short-time modulation domain[J]. Speech Communication, 2010, 52(5):450-475.
4. 张安莉,陈丹.一种变步长自适应滤波算法在信号消噪中的应用[J].西安工业大学学报,2010, 30(1):71-75.
5. 段正华,王梓展,鲁薇.一种改进的解相关LMS自适应算法[J].湖南大学学报(自然科学版),2006, 33(3):114-118.
6. 陈是知,姜蕊辉.TMS320F2812原理与开发实践[M].北京:中国电力出版社,2010: 2-24.
7. DING H, LU J, QIU X J, et al. An adaptive speech enhancement method for siren noise cancellation[J]. Applied Acoustics, 2004, 65(4):385-399.
8. 刘威,胡爱群.基于相关增强的单信道信号分离[J].东南大学学报(自然科学版),2010, 40(3):464-470.

Previous Article
Research on Pretreatment and Envelope Extraction Algorithm of Heart Sound Signal
Next Article
Heart Rate Variability Study Based on a Novel RdR RR Intervals Scatter Plot

Journal of Biomedical Engineering

A Modified Speech Enhancement Algorithm for Electronic Cochlear Implant and Its Digital Signal Processing Realization

Abstract Full text Figures/Tables Video References Cited by

Previous Article

Next Article

Format

Content