etCoeffs_I</a> (  f_c, <span class="keyword">...</span>
0032         1.019*2*pi*(((f_c/fEarQ).^iOrder + fBW^iOrder).^(1/iOrder)), <span class="keyword">...</span>
0033         T);
0034  
0035     <span class="comment">% allocate output memory</span>
0036     X = zeros(iNumBands, length(afAudioData));
0037  
0038     <span class="comment">% pre-processing: down-mixing</span>
0039     <span class="keyword">if</span> (size(afAudioData,2)&gt; 1)
0040         afAudioData = mean(afAudioData,2);
0041     <span cla