The method 12, further comprising determining an amount of noise that may be added to a channel signal without exceeding a limit and adjusting the gain of at least one of {HEAD ~ the channel signals} based on the determined amount of {TAIL ~ noise} 
The method 12 , further comprising determining an amount of noise that may be added to a channel signal without exceeding a limit and adjusting the gain of at least one of { HEAD ~ the channel signals } based on the determined amount of { TAIL ~ noise }
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 HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL