Figure 3From: Time and frequency domain methods for quantifying common modulation of motor unit firing patternsMagnitude squared spectra of Hanning window filters. Magnitude spectra of the transfer functions of Hanning window filters for three different time constants, Ï„ = 200 ms (dotted line), Ï„ = 400 ms (dashed line) and Ï„ = 800 ms (solid line). As the time constant increases the bandwidth of the filter decreases and its magnitude increases.Back to article page