Local signal-to-noise ratios are computed across both time and frequency dimensions

Evidence

The first step in the stimulus manipulation consisted of the calculation of the local, i.e. spectro-temporal, SNR of the three-speaker stimulus. Spectrograms were calculated from 1024-point fast Fourier transforms on 1024-samples long, 50 %-overlapping, square root Hann-windowed segments of the signals. This was performed for each of the two stereo channels of a spatialized speech signal to accommodate interaural level differences. — Dijk, Pim van, Physiology, Psychoacoustics and…, 1638