Help/UGens/Filters/Lag.html

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  25 <p class="p1"><span class="s1"><b>Lag<span class="Apple-tab-span">      </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span></b></span><b>exponential lag</b></p>
  26 <p class="p2"><br></p>
  27 <p class="p1"><b>Lag.ar(in, lagTime, mul, add)</b></p>
  28 <p class="p1"><b>Lag.kr(in, lagTime, mul, add)</b></p>
  29 <p class="p2"><br></p>
  30 <p class="p1">This is essentially the same as <b>OnePole</b> except that instead of supplying the coefficient directly, it is calculated from a 60 dB lag time. This is the time required for the filter to converge to within 0.01 % of a value. This is useful for smoothing out control signals.</p>
  31 <p class="p2"><br></p>
  32 <p class="p1"><b>in</b> - input signal</p>
  33 <p class="p1"><b>lagTime</b> - 60 dB lag time in seconds. <br>
  34 <br>
  35 See also <a href="LagUD.html"><span class="s2">LagUD</span></a>, <a href="Ramp.html"><span class="s3">Ramp</span></a></p>
  36 <p class="p3"><br></p>
  37 <p class="p4">(</p>
  38 <p class="p5">// used to lag pitch</p>
  39 <p class="p4">{</p>
  40 <p class="p5"><span class="s4"><span class="Apple-tab-span">    </span></span><span class="s5">SinOsc</span><span class="s4">.ar(<span class="Apple-tab-span">  </span><span class="Apple-tab-span">    </span></span>// sine wave</p>
  41 <p class="p5"><span class="s4"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span></span><span class="s5">Lag</span><span class="s4">.kr(<span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span></span>// lag the modulator</p>
  42 <p class="p4"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="s5">LFPulse</span>.kr(4, 0, 0.5, 50, 400),<span class="Apple-tab-span">     </span><span class="s6">// frequency modulator</span></p>
  43 <p class="p4"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="s5">Line</span>.kr(0, 1, 15)<span class="Apple-tab-span">   </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="s6">// modulate lag time</span></p>
  44 <p class="p4"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span>),<span class="Apple-converted-space"> </span></p>
  45 <p class="p5"><span class="s4"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>0,<span class="Apple-tab-span">  </span></span>// phase</p>
  46 <p class="p5"><span class="s4"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>0.3<span class="Apple-tab-span"> </span></span>// sine amplitude</p>
  47 <p class="p4"><span class="Apple-tab-span">     </span>)<span class="Apple-converted-space"> </span></p>
  48 <p class="p4">}.play</p>
  49 <p class="p4">)</p>
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