Adaptive threshold tracking adjusts target level while holding masker constant

Evidence

Listeners were asked to attempt a transcript as soon as they believed that they could hear half of the words in the sentence. No replay was possible for the following sentences, for which the broadband SNR was varied across sentences by modifying the target level while the masker level was kept constant at 74 dBA SPL. For a given sentence, the broadband SNR was increased if the score obtained at the previous sentence was greater than 2, it was decreased if the score was less than 2 and it remained unchanged if the score was 2. — Dijk, Pim van, Physiology, Psychoacoustics and…, 3541