{HEAD ~ The output audio signal} is then applied to a compressor amplifier circuit for application to the ear of {TAIL ~ a handicapped user} 
{ HEAD ~ The output audio signal } is then applied to a compressor amplifier circuit for application to the ear of { TAIL ~ a handicapped user }
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL