converting the digital input signal from a time domain into a frequency domain includes determining a complex transformation value, where said noise signal is, for {HEAD ~ each determined frequency band}, filtered out of {TAIL ~ said complex transformation value} by subtracting a first correction value from a real part of said complex transformation value to obtain a corrected real value and by subtracting a second correction value from an imaginary part of said complex transformation value to obtain a corrected imaginary value, and 
filtered out of
converting the digital input signal from a time domain into a frequency domain includes determining a complex transformation value , where said noise signal is , for { HEAD ~ each determined frequency band } , filtered out of { TAIL ~ said complex transformation value } by subtracting a first correction value from a real part of said complex transformation value to obtain a corrected real value and by subtracting a second correction value from an imaginary part of said complex transformation value to obtain a corrected imaginary value , and
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH