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Study finds that non-linear frequency compression boosts speech intelligibility

Recently, Phonak has developed SoundRecover (SR), a non-linear, frequency compression (NLFC) algorithm designed specifically for hearing aid users who have difficulty hearing key highfrequency speech information, such as the fricatives /f/, /s/, and /sh/. SR works with hearing instruments to improve the listening experience of individuals with hearing loss in quiet and in noisy situations by compressing frequencies above a set cut-off, shifting them to a lower more audible range, while frequencies below the cut-off are amplified normally.