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Figure 3 :Examples of noise samples evaluated in experiment II - frequency spectra of noise samples reproduced with an amplification level of 5 dB (a-g) and spectrum of LFN played during performing logical tasks (h). Spectra nos. I, II, III, IV, V and VI LFNs; spectrum no. VII a broadband noise with less dominant content of low frequencies. (LAeq,T is the equivalent-continuous A-weighted SPL, LC - LA is the difference between equivalent-continuous C- and A-weighted SPL)

Figure 3 :Examples of noise samples evaluated in experiment II - frequency spectra of noise samples reproduced with an amplification level of 5 dB (a-g) and spectrum of LFN played during performing logical tasks (h). Spectra nos. I, II, III, IV, V and VI  LFNs; spectrum no. VII  a broadband noise with less dominant content of low frequencies. (LAeq,T is the equivalent-continuous A-weighted SPL, LC - LA is the difference between equivalent-continuous C- and A-weighted SPL)