Help/UGens/Filters/Limiter.html

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  21 <p class="p1"><b>Limiter<span class="Apple-tab-span">   </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>peak limiter</b></p>
  22 <p class="p2"><br></p>
  23 <p class="p3"><b>Limiter.ar(in, level, dur)</b></p>
  24 <p class="p2"><br></p>
  25 <p class="p3">Limits the input amplitude to the given level. Limiter will not overshoot</p>
  26 <p class="p3">like Compander will, but it needs to look ahead in the audio. Thus there is a<span class="Apple-converted-space"> </span></p>
  27 <p class="p3">delay equal to twice the lookAheadTime.</p>
  28 <p class="p3">Limiter, unlike Compander, is completely transparent for an in range signal.</p>
  29 <p class="p2"><br></p>
  30 <p class="p3"><b>in</b> - the signal to be processed.</p>
  31 <p class="p3"><b>level</b> - the peak output amplitude level to which to normalize the input.</p>
  32 <p class="p3"><b>dur</b> - aka lookAheadTime. The buffer delay time. Shorter times will produce smaller delays</p>
  33 <p class="p3">and quicker transient response times, but may introduce amplitude modulation artifacts.</p>
  34 <p class="p4"><br></p>
  35 <p class="p5">(</p>
  36 <p class="p6">// example signal to process</p>
  37 <p class="p5"><span class="s1">Synth</span>.play({</p>
  38 <p class="p5"><span class="Apple-tab-span">     </span><span class="s1">var</span> z;</p>
  39 <p class="p5"><span class="Apple-tab-span">     </span>z = <span class="s1">Decay2</span>.ar(</p>
  40 <p class="p5"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="s1">Impulse</span>.ar(8, <span class="s1">LFSaw</span>.kr(0.25, -0.6, 0.7)),<span class="Apple-converted-space"> </span></p>
  41 <p class="p5"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span>0.001, 0.3, <span class="s1">FSinOsc</span>.ar(500));</p>
  42 <p class="p5">}, 0.8)</p>
  43 <p class="p5">)</p>
  44 <p class="p4"><br></p>
  45 <p class="p5">(</p>
  46 <p class="p5"><span class="s1">Synth</span>.play({</p>
  47 <p class="p5"><span class="Apple-tab-span">     </span><span class="s1">var</span> z;</p>
  48 <p class="p5"><span class="Apple-tab-span">     </span>z = <span class="s1">Decay2</span>.ar(</p>
  49 <p class="p5"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="s1">Impulse</span>.ar(8, <span class="s1">LFSaw</span>.kr(0.25, -0.6, 0.7)),<span class="Apple-converted-space"> </span></p>
  50 <p class="p5"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span>0.001, 0.3, <span class="s1">FSinOsc</span>.ar(500));</p>
  51 <p class="p5"><span class="Apple-tab-span">     </span>[z, <span class="s1">Limiter</span>.ar(z, 0.4, 0.01)]</p>
  52 <p class="p5">}, 0.5)</p>
  53 <p class="p5">)</p>
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