【作者】 郑义； 陈燕华； 蒋刚毅； 戴汝为；

【Author】 Zheng Yi Chen Yanhua Jiang Gangyi Dai Ruwei Institute of Artificial Intelligence and Pattern Recognition,Shantou University,Shantou,515063

【机构】 汕头大学人工智能与模式识别研究所；

【摘要】 本文采用有限分辨率的全息编码显示方法研究语音信号小波变换谱。该方法建立了复矢量与伪彩色编码域的二维映射关系,适应于人眼的有限色度分辨能力.可根据需要调节小波变换谱的幅模和相角的分辨率,并能显示出清晰的等幅度线和等相位线.采用该方法对以韵母音素为主的语音信号进行小波全息谱特征分析,可为语音信号处理提供新的数字特征.更多还原

【Abstract】 In this paper,the Wavelets transform spectrograms of speech signals are investigated using the holo-encoding display method with finite resolution.The 2- Dimension mapping from complex vectors to pseudo-color encoding domain is established in the method,which can be suitable for the finite color resolution of human eyes.The analyzer can adjust the resolution of magnitude and phase of the spectrogram,which show the contour lines.The primary features of Wavelets spectrograms of typical vowels are analyzed,which can be new numerical characteristics for speech signal processing.更多还原