声纹认证前端音频预处理SOPC设计
针对声纹身份认证一体化设计需求,基于SystemVue和QuartusⅡ平台,利用DSPBuilder技术,在EP2C35F芯片上完成了用于声纹特征提取的前端音频预处理模块的SOPC设计。主要通过Sys-temVue设计数字音频滤波器参数,然后结合Simulink平台完成基于线性相位结构和分布式(DA)算法的低通滤波器结构设计,最后通过SignalCompiler转换为HDL语言完成设计。实验结果表明,系统可以有效限制音频信号的带宽,减少带外噪声;利用DSPBuilder设计具有线性相位结构和DA算法的滤波器,设计周期短,占用逻辑资源少,其运算速度有很大提高;MATLAB理论计算也验证了设计的...
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| Published in | 电子技术应用 Vol. 40; no. 9; pp. 24 - 26 |
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| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
齐齐哈尔大学计算中心,黑龙江齐齐哈尔161006%齐齐哈尔大学通信与电子工程学院,黑龙江齐齐哈尔,161006%齐齐哈尔大学计算中心,黑龙江齐齐哈尔,161006
2014
中国科学院上海技术物理研究所红外物理国家重点实验室,上海200083 齐齐哈尔大学通信与电子工程学院,黑龙江齐齐哈尔161006 |
| Subjects | |
| Online Access | Get full text |
| ISSN | 0258-7998 |
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| Summary: | 针对声纹身份认证一体化设计需求,基于SystemVue和QuartusⅡ平台,利用DSPBuilder技术,在EP2C35F芯片上完成了用于声纹特征提取的前端音频预处理模块的SOPC设计。主要通过Sys-temVue设计数字音频滤波器参数,然后结合Simulink平台完成基于线性相位结构和分布式(DA)算法的低通滤波器结构设计,最后通过SignalCompiler转换为HDL语言完成设计。实验结果表明,系统可以有效限制音频信号的带宽,减少带外噪声;利用DSPBuilder设计具有线性相位结构和DA算法的滤波器,设计周期短,占用逻辑资源少,其运算速度有很大提高;MATLAB理论计算也验证了设计的正确性。 |
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| Bibliography: | voiceprint extracting front ; audio processing ; system on chip ; linear phase structure ; distributed algorithms Tao Bairui, Guo Qin, Li Chunhui, Miao Fengjuan, Zhang Jinglin, Liu Yanju, Li Qinglong (1.College of Communications and Electronics Engineering, Qiqihar University, Qiqihar 161006, China; 2.National Laboratory for Infrared Physics, Shanghai Institutes of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China; 3.Computing Center, Qiqihar University, Qiqihar 161006, China) For voiceprint authentication integrated design requirements, front audio preprocessing module for feature extraction of voiceprint SOPC designs was implemented in EP2C35F using SystemVue, Quartus Ⅱ platform and DSP Builder technology. Digital audio filter parameters were designed primarily through SystemVue. And then with Simulink platform ,the low-pass filter was de- signed based on linear phase structure and distributed (DA) algorithm. Finally, the design for the HDL language was given through Signal Compiler conve |
| ISSN: | 0258-7998 |