Improved environment component phase angle estimation method and device under sparse constraint and storage medium

The invention discloses an improved environment component phase angle estimation method and device under sparse constraint and a storage medium, and belongs to the technical field of audio processing. The method comprises the following steps: performing short-time Fourier transform on a to-be-processed dual-channel audio signal, and transforming the to-be-processed dual-channel audio signal to a time-frequency domain to obtain a left channel signal and a right channel signal of the time-frequency domain; for a frequency band with the frequency smaller than 1.5 kHz, adopting a first phase angle estimation method to obtain an environment component phase angle estimation value; and for a frequency band of which the frequency is greater than or equal to 1.5 kHz, acquiring an environment component phase angle estimation value by adopting a second phase angle estimation method. According to the method, different search strategies are carried out on different frequency band areas from the auditory characteristics of