The time-frequency mask method based on the sparseness of the time-frequency spectrum of speech signals provides a new way, but also has the problem of energy loss caused by the 2-value mask.

• 基于语音信号时频图稀疏性假设的time-frequency mask方法提供了一条新的解决思路，但是同时也存在二值mask带来的能量损失等问题。