However, in a preferred embodiment of {HEAD ~ the invention}, {TAIL ~ the method} is adapted for processing an audio signal in a listening device 
However , in a preferred embodiment of { HEAD ~ the invention } , { TAIL ~ the method } is adapted for processing an audio signal in a listening device
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH