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基于DSP的人工电子耳语音信号处理的研究 被引量:1

Study on Speech Signal Processing for Cochlear Implants Based on DSP
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摘要 介绍人工电子耳的基本原理和CIS语音信号处理方案,提出基于DSP芯片TMS320LF2407的硬件电路设计和软件编程 流程,最后通过计算机对经过DSP处理后的语音数据进行了仿真和合成,实验结果表明合成语音与原始语音在频谱包 络特征上非常相似。 This paper introduces the working principle of cochlear implants, and its continuous interleave sampling (ClS)speech signal processing method, presents the design of the electronic circuit and the flow chart of software programming. A computer-based acoustic simulation method is used to simulate and synthesize the speech signals processed by DSP. The experimental result shows that the synthesis speech signal is similar to the original speech signal in its frequency envelope.
出处 《中国医疗器械杂志》 CAS 2004年第2期98-101,共4页 Chinese Journal of Medical Instrumentation
基金 重庆市应用基础基金项且资助
关键词 人工电子耳 语音信号 数字信号处理器 DSP芯片 语音处理策略 cochlear implant, speech signal processing, digital signal processor (DSP)
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参考文献10

  • 1Zeng FG. Cochlear implants in China. Audiology.1995.34: 61-75.
  • 2B Wilson, etal. Advances in coding strategies for cochlear implants. Advances in Otolaryngology-Head and Neck Surgery, 1995, 9: 105-129.
  • 3Philipos C Loizou etal. The effect of parametric variations of cochlear implant processors on speech understanding. J. Acoust. Soc. Am. 108(2) August 2000:790-802.
  • 4M Dorman, etal. Speech intelligibility as a function of the number of channels of stimulation for signal processors using sine-wave and noise -band outputs. Journal of the Acoustical Society of American, 1997, 102:2403-2411.
  • 5Shannon RV, etal. Speech recognition with primarily temporal cues. Science, 1995,270 (13): 303-307.?A
  • 6M.Dorman, etal. Speech intelligibility as a function of the number of channels of stimulation for signal processors using sine-wave and noise -band outputs. Journal of the Acoustical Society of American, 1997, 102:2403-2411.
  • 7Zeng FG. Cochlear implants in China. Audiology.1995.34: 61-75.
  • 8B.Wilson, etal. Advances in coding strategies for cochlear implants. Advances in Otolaryngology-Head and Neck Surgery, 1995, 9: 105-129.
  • 9Philipos C. Loizou etal. The effect of parametric variations of cochlear implant processors on speech understanding. J. Acoust. Soc. Am. 108(2) August 2000:790-802.
  • 10Shannon RV, etal. Speech recognition with primarily temporal cues. Science, 1995,270 (13): 303-307.

同被引文献10

  • 1[1]Clark G M, et al. A multiple-electrode hearing prosthesis for cochlear implantation in deaf patients[J]. Med Prog Through Techno, 1977, 5:127-140.
  • 2[2]Wilson B S, Finely C, Lawson D T, et al. Better speech recognition with cochlear implant[J]. Nature, 1991: 352.
  • 3[3]Friesen L M, Shannon R V, Cruz R J. Effects of stimulation rate on speech recognition with cochlear implants[J]. Audiol Neurootol. 2005, 110(3): 169-184.
  • 4[4]Fu Q J, Hsu C J, Horng M J. Effects of speech processing strategy on Chinese tone recognition by nucleus-24 cochlear implant users[J]. Ear Hear. 2004, 25(5): 501-8.
  • 5[5]Wang K, Shamma S A. Auditory analysis of spectro-temporal information in acoustic signal[J]. IEEE Eng in Med&Bio, 1995,14(2): 186-194.
  • 6[6]Dorman M F, Loizou P C. Changes in speech intelligibility as function of time and signal processing strategies for an ineraid patient with continuous interleaved sampling (CIS) processors[J]. Ear and Hearing, 1997,18: 147-155.
  • 7[7]Wilson B S, Lawson D, Zerbi M. Advances in coding strategies for cochlear implants[J]. Advances in Otolaryngology Head and Neck Surgery,1995, 9:105-129.
  • 8[8]Shannon R V, Zeng F G and Kamath V, et al. Speech recognition with primarily temporal cues[J]. Science, 1995, 270(13): 303.
  • 9[9]Dorman M F, Loizou P C, Rainey D. Speech intelligibility as a function of the number of channels of simulation for signal processors using sine-wave[J]. J Acoust Soc Am,1997,102(4):2403.
  • 10聂开宝,蓝宁,高上凯.电子耳蜗CIS语音信号处理方案的计算机仿真及声音合成[J].北京生物医学工程,1999,18(4):193-196. 被引量:7

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