谱减法进行语音增强，其中使用了优化算法减少音乐噪声-Spectral subtraction speech enhancement, which uses optimization algorithms to reduce noise music

BP神经网络的数据分类———语音特征信号分类 本案例选取了民歌、古筝、摇滚和流行四类不同音乐,用BP神经网络实现对这四类音乐 的有效分类。-Data speech characteristic signal classification of BP neural network, selects the guzheng, folk, rock and pop four different types of music, the realization of the four types