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Figure 8
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Propagation noise transfer functions (black dashed line) and IIR filter (green solid line) varying (a) the filter order Nb from 2 to 64 with 
and 
, (b) smoothing 
from 0 to 0.5 with Nb = 32 and 
and (c) warping 
from 0 to 0.5 with Nb = 32 and 
for microphone 11.
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