摘要
音乐节拍是音乐的重要特征之一,对音乐节拍的提取是音乐识别的重要研究内容。小波变换方法可以实现对音乐节拍特征进行有效的提取与识别。文中对音乐节拍的分析采用双尺度小波变换(DWT)方法,即离散小波变换,提取音乐信号的自相关包络,对自相关包络信息进行分析,从而实现对音乐节拍信息的识别。实验证明,文中提出的方法可以有效地对音乐信号的节拍信息进行识别。
Music tempo is an important feature of music, Extraction of the tempo of music is an important research in music recognition. Wavelet transform can characteristics of music tempo extraction and identification effective. This paper analyzes the music tempo by two-scale wavelet transform （DWT） method, that is discrete wavelet transform. Extracted from the music signal, the autocorrelation envelope of music is analyzed in order to estimat the music tempo information. Experimental results show that the proposed method can effectively estimat music tempo information.
出处
《电子设计工程》
2013年第4期19-21,25,共4页
Electronic Design Engineering
