n (pi * cutoff / fs) //[approximately]</span></div><div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;<span class="comment">q = resonance/bandwidth [0 &lt; q &lt;= 1]  most res: q=1, less: q=0</span></div><div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;<span class="comment">low = lowpass output</span></div><div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;<span class="comment">high = highpass output</span></div><div class="