The invention can be applied in any method where an acoustic input signal is A/D converted, where {HEAD ~ the resulting digital signal} is converted into {TAIL ~ the frequency domain} and where an undesired periodic noise is generated 
is converted into
The invention can be applied in any method where an acoustic input signal is A / D converted , where { HEAD ~ the resulting digital signal } is converted into { TAIL ~ the frequency domain } and where an undesired periodic noise is generated
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 REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH