Exploration of the Functional Effect of Modified Gain Precalculation on Soft Speech Intelligibility

An exploratory investigation of gain precalculation principles in CE‐labelled Sonovabrand hearing instruments (e.g. Phonak hearing instruments) is intended to be conductedon hearing impaired participants. These gain precalculation principles are enabled byrespective hearing instrument technologies and hearing instrument algorithms. The aim ofthe study is to investigate and assess strength and weaknesses of these gainprecalculation principles in terms of speech intelligibility to determine theirapplication in hearing instruments (Phase of development). Objective laboratorymeasurements as well as subjective ratings will be carried out. This will be acontrolled, single blinded and randomized active comparator clinical evaluation whichwill be conducted mono centric at Sonova AG Headquarter based in Stäfa.