Conference paper Open Access
Vojtech Chmelík; Monika Rychtáriková; Herbert Muellner; Kristian Jambrošić; Lukáš Zelem; Jakub Benklewski; Christ Glorieux; Rudolf Exel
The sensitivity of human hearing is one of the important aspects determining daily living and
acoustic comfort. In this paper, the ability of people to discriminate between frequency spectra
obtained by filtering out different frequency bands from the spectrum of broadband noise stimuli
was tested. Subjective laboratory listening tests were designed and optimized, using the threealternative forced choice method. The width of the frequency gaps was varied in between 1, 2, 4, 8,
12 and 16 semitones, and reductions 0.3, 0.5, 1, 2, 3, 5, 10 and 20dB were applied. The gaps were
created symmetrically (on a logarithmic scale) around two central frequencies: 125Hz and 2000Hz.
Altogether 39 subjects were tested.