临界带宽滤波器组对语音频谱表达的特点
he Spectrum of Speech Signal Passed a set of Critical Filters
本实验通过对比语音信号通过临界带宽滤波器组后的频谱与快速傅立叶变换（FFT）频谱来考察临界带宽滤波器组对语音频谱表达的特点。实验表明临界带宽滤波器组对于语音频谱能起到平滑包络和突出共振峰的作用，有利于信号特征的表现。实验也表明，路数较多的滤波器组对频谱表达的效果更好。
his experiment investigate the characteristics of spectrum of speech signal passed a set of critical-band filters compared with FFT spectrum. The result of experiment indicate that spectrum produced by critical-band filters has smoother envelope and sharper peaks, thus it is better to represent speech signal features.
范京、傅雷鹏、刘惠华
电子电路
语音信号处理临界带宽滤波器组快速傅立叶变换（FFT）
Speech signals processingCritical band filterFast Fourier Transform (FFT)
范京,傅雷鹏,刘惠华.临界带宽滤波器组对语音频谱表达的特点[EB/OL].(2006-03-07)[2025-08-10].http://www.paper.edu.cn/releasepaper/content/200603-114.点此复制
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