** Morningstar analysts see shares of Australia's Cochlear COH.AX as slightly overvalued as market extrapolates high cochlear unit sales
** Investment research firm expects revenue growth for hearing implant maker to moderate as average selling prices decline, given mix shift to lower-price emerging markets
** Says demand for Cochlear's sound processor upgrades softening with patients delaying upgrades due to cost-of-living pressures and satisfaction with older sound processors
** Notes next-largest competitor, Med- El, is also winning market share with its new sound processor offering, Sonnet 3
** Average rating of 15 analysts is "hold"; their median PT is A$299.77 – according to data compiled by LSEG
** Stock down nearly 11% YTD
(Reporting by Sneha Kumar in Bengaluru)
((Sneha.kumar@thomsonreuters.com;))