o">  105</span>&#160;  }</div><div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;</div><div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;  <span class="comment">/** Calculate the next sample, given an input signal.</span></div><div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;<span class="comment">  @param input the signal input.</span></div><div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;<span c