王登峰,曹晓琳,于吉龙.车载语音识别系统设计与试验[J].农业机械学报,2010,41(1):.
Wang Dengfeng,Cao Xiaolin,Yu Jilong.Design and Experiment of a Vehicular Speech Recognition System[J].Transactions of the Chinese Society for Agricultural Machinery,2010,41(1):.
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车载语音识别系统设计与试验   [下载全文]
Design and Experiment of a Vehicular Speech Recognition System   [Download Pdf][in English]
  
DOI:10.3969/j.issn.1000-1298.2010.1.008
中文关键词:  车辆 语音识别系统 动态时间归整算法 设计 试验
基金项目:吉林省科技发展计划资助项目(20076030、20040322)和山东省泰山学者特聘专家计划资助 项目
作者单位
王登峰 吉林大学汽车动态模拟国家重点实验室 长春 130025 
曹晓琳 吉林大学汽车动态模拟国家重点实验室 长春 130025 
于吉龙 吉林大学汽车动态模拟国家重点实验室 长春 130025 
中文摘要:用改进的动态时间归整(DTW)算法进行语音辨识,设计了语音识别系统软件,以SPC E061A单片机为核心设计了车载语音识别系统的电控单元(ECU)。在车内不同噪声环境 下进行了语音识别试验,结果表明语音识别率随着车内环境 噪声的增加而下降,随着语音字数的增加而降低;在车辆怠速车内噪声小于50dB(A)的环 境中2字语音平均识别率为90%、4字语音的识别率为85%; 在车辆定置油门半开、车内噪声 为60~70dB(A)的环境中,2字语音平均识别率为85%、4字语音的识别率为80%。
Wang Dengfeng  Cao Xiaolin  Yu Jilong
State Key Laboratory of Automotive Dynamic Simulation, Jilin University, chang chun 130025,china Changchun 130025, China Changchun 130025, China;State Key Laboratory of Automotive Dynamic Simulation, Jilin University, chang chun 130025,china Changchun 130025, China Changchun 130025, China;State Key Laboratory of Automotive Dynamic Simulation, Jilin University, chang chun 130025,china Changchun 130025, China Changchun 130025, China
Key Words:Vehicle, Speech recognition system, Dynamic time warping method, Design, Experim ent
Abstract:An improved dynamic time warping (DTW) speech recognition method is proposed. An electronic control unit of vehicular speech recognition system is developed bas ed on chip microcontroller SPCE061A. The corresponding control software is progr ammed and the speech recognition tests are carried out under the different noise conditions within an experimental vehicle. The test results show that the speec h recognition ratio reduces with the increase of the vehicle interior noise leve l and the speech length. The average recognition ratio is 90% for two Chinese characters speech and 85% for four Chinese characters speech when the vehicle is u nder the idle running condition and the interior noise is less than 50dB(A). A nd the average recognition ratio is 85% for two Chinese characters speech and 80 % for four Chinese Characters speech when the vehicle is under the fixation and half throttle running condition and the interior noise level range is from 60 t o 70dB(A). The speech recognition results are satisfactory.

Transactions of the Chinese Society for Agriculture Machinery (CSAM), in charged of China Association for Science and Technology (CAST), sponsored by CSAM and Chinese Academy of Agricultural Mechanization Science(CAAMS), started publication in 1957. It is the earliest interdisciplinary journal in Chinese which combines agricultural and engineering. It always closely grasps the development direction of agriculture engineering disciplines and the published papers represent the highest academic level of agriculture engineering in China. Currently, nearly 8,000 papers have been already published. There are around 3,000 papers contributed to the journal each year, but only around 600 of them will be accepted. Transactions of CSAM focuses on a wide range of agricultural machinery, irrigation, electronics, robotics, agro-products engineering, biological energy, agricultural structures and environment and more. Subjects in Transactions of the CSAM have been embodied by many internationally well-known index systems, such as: EI Compendex, CA, CSA, etc.

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