Disclosed is method of generating an audible 
signal in a 
hearing aid by estimating 
a weighting function of received audio signals, the 
hearing aid is adapted to be worn by a user; the method comprises the steps of:estimating a directional 
signal by estimating a weighted sum of two or more 
microphone signals from two or more microphones, where a first 
microphone of the two or more microphones is a front 
microphone, and where a second microphone of the two or more microphones is a rear microphone;estimating a direction-dependent time-frequency 
gain, and synthesizing an output 
signal;wherein estimating the direction-dependent time-frequency 
gain comprises:obtaining at least two directional signals each containing a time-frequency representation of a 
target signal and a 
noise signal; and where a first of the directional signals is defined as a front aiming signal, and where a second of the directional signals is defined as a rear aiming signal;using the time-frequency representation of the 
target signal and the 
noise signal to estimate a time-frequency 
mask; andusing the estimated time-frequency 
mask to estimate the direction-dependent time-frequency 
gain.