);</div><div class="line">  aSin1.setFreq(kDelay.next(averaged));</div><div class="line">  aSin2.setFreq(kDelay.read(echo_cells_2));</div><div class="line">  aSin3.setFreq(kDelay.read(echo_cells_3));</div><div class="line">}</div><div class="line"></div><div class="line"></div><div class="line">int updateAudio(){</div><div class="line">  return 3*((int)aSin0.next()+aSin1.next()+(aSin2.next()&gt;&gt;1)</div><div class="line">    +(aSin3.next()&gt;&gt;2)) &gt;&gt;3;</div><div class="line">}</div><div class="l