Speech Recognition in quiet:
Mean change in Phoneme score @ 60 dB (PS60)
Former BCHA	Former ACHA
15+/-16	6+/-15
52% improved	19% improved
0% worse	0% worse
Mean change in MPS*
Former BCHA	Former ACHA
5+/-8	4+/-12
30% improved	13% improved
0% worse	13% worse
Mean change in S/N† score
Former BCHA	Former ACHA
41+/-31	31+/-44
64% improved	54% improved
0% worse	8% worse