一个音符起点检测程序，其中使用了非负矩阵分解以提取特征减少运算量-NOTE ONSET DETECTION USING NMF

本文提出了一种基于非负矩阵分解的方法来执行语音活动检测，其不需要来自用户的训练数据，并且对于中的变化是鲁棒的噪声环境。- This paper has presented a method based on non-negative matrix factorization for performing voice activity detection that requires no training data the user and is robust to changes in