摘要
为了能够获得音乐节奏信息,在信号能量分析,确定信号能量的起伏之后,采用信号整倍数抽值的方法减少有待分析的数据量,对抽值后的信号数据进行AR模型功率谱估计,从而在频率域寻找出音乐信号的能量起伏周期,确定乐音信号的节奏.
In order to get message of music tempo, a research analyze sampling signal in AR spectrum by a method extracting whole number from data that decreased data capacity after analyzing energy signal and making a deeision of fluctuating of energy signal. Moreover it can find music tempo from frequency domain and make a right decision of music tempo.
出处
《青海师范大学学报（自然科学版）》
2008年第3期15-17,共3页
Journal of Qinghai Normal University(Natural Science Edition)
关键词
音乐节奏
信号整倍数抽取
AR功率谱
music tempo
extracting whole number from data
AR spectrum
