repeating the steps of measuring, identifying and displaying at intervals during {TAIL ~ the transforming} of the elemental sound units to {HEAD ~ audio signals} 
repeating the steps of measuring , identifying and displaying at intervals during { TAIL ~ the transforming } of the elemental sound units to { HEAD ~ audio signals }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD