The interval of complete silence is usually seconds to a couple of minute. If the set off sound is repeated at intervals, tinnitus could be suppressed as long because the repetition lasts. The residual inhibition (RI) impact, first noted in 1903, is the capacity of a sound of the appropriate frequency and depth to briefly attenuate or suppress tinnitus. To differentiate the tailor-made sound used for inhibition from the broadband undifferentiated sound employed in tinnitus maskers, it’s usually referred to as the ‘set off’ or ‘quieting’ sound. The set off sound is carefully matched to the pitch and spectrum of
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