Help/UGens/Noise/LFDNoise3.html

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  24 <p class="p1"><span class="s1"><b>LFDNoise3<span class="Apple-tab-span">        </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span></b></span><b>dynamic cubic noise</b></p>
  25 <p class="p2"><br></p>
  26 <p class="p1"><b>LFDNoise3.ar(freq, mul, add)</b></p>
  27 <p class="p1"><b>LFDNoise3.kr(freq, mul, add)</b></p>
  28 <p class="p2"><br></p>
  29 <p class="p2"><br></p>
  30 <p class="p1">Similar to <b>LFNoise2</b>, it generates polynomially interpolated random values<span class="Apple-converted-space"> </span></p>
  31 <p class="p1">at a rate given by the <b>freq</b> argument, with 3 differences:</p>
  32 <p class="p2"><br></p>
  33 <p class="p1">-no time quantization<span class="Apple-converted-space"> </span></p>
  34 <p class="p1">-fast recovery from low freq values</p>
  35 <p class="p1">-cubic instead of quadratic interpolation</p>
  36 <p class="p2"><br></p>
  37 <p class="p1">(LFNoise0,1,2 quantize to the nearest integer division of the samplerate,</p>
  38 <p class="p1">and they poll the freq argument only when scheduled, and thus seem<span class="Apple-converted-space"> </span></p>
  39 <p class="p1">to hang when freqs get very low).</p>
  40 <p class="p1">If you don't need very high or very low freqs, or use fixed freqs,<span class="Apple-converted-space"> </span></p>
  41 <p class="p1">LFNoise2 is more efficient.</p>
  42 <p class="p2"><br></p>
  43 <p class="p1"><b>freq</b> - rate at which to generate random values.</p>
  44 <p class="p2"><br></p>
  45 <p class="p3"><span class="s2">see also: <a href="LFDNoise0.html">LFDNoise0</a>, <a href="LFDNoise1.html">LFDNoise1</a>, <a href="LFNoise2.html">LFNoise2</a></span></p>
  46 <p class="p4"><br></p>
  47 <p class="p2"><br></p>
  48 <p class="p2"><br></p>
  49 <p class="p5">// try wiggling mouse quickly:<span class="Apple-converted-space"> </span></p>
  50 <p class="p5">// LFNoise2 overshoots when going from high to low freqs, LFDNoise changes smoothly.</p>
  51 <p class="p6"><br></p>
  52 <p class="p7">{<span class="Apple-converted-space">  </span><span class="s3">SinOsc</span>.ar(<span class="s3">LFNoise2</span>.ar(<span class="s3">MouseX</span>.kr(0.1, 1000, 1), 200, 500), 0, 0.2)<span class="Apple-converted-space">  </span>}.play</p>
  53 <p class="p6"><br></p>
  54 <p class="p7">{<span class="Apple-converted-space">  </span><span class="s3">SinOsc</span>.ar(<span class="s3">LFDNoise3</span>.ar(<span class="s3">MouseX</span>.kr(0.1, 1000, 1), 200, 500), 0, 0.2)<span class="Apple-converted-space">  </span>}.play</p>
  55 <p class="p6"><br></p>
  56 <p class="p6"><br></p>
  57 <p class="p5">// LFNoise quantizes time steps at high freqs, LFDNoise does not:</p>
  58 <p class="p6"><br></p>
  59 <p class="p7">{ <span class="s3">LFNoise2</span>.ar(<span class="s3">XLine</span>.kr(2000, 20000, 8), 0.1) }.scope;</p>
  60 <p class="p6"><br></p>
  61 <p class="p7">{ <span class="s3">LFDNoise3</span>.ar(<span class="s3">XLine</span>.kr(2000, 20000, 8), 0.1) }.scope;</p>
  62 <p class="p6"><br></p>
  63 <p class="p5">// use as frequency control</p>
  64 <p class="p7">(</p>
  65 <p class="p7">{</p>
  66 <p class="p7"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="s3">SinOsc</span>.ar(</p>
  67 <p class="p7"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="s3">LFDNoise3</span>.ar(4, 400, 450),</p>
  68 <p class="p7"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>0, 0.2</p>
  69 <p class="p7"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span>)</p>
  70 <p class="p7">}.play;</p>
  71 <p class="p7">)</p>
  72 <p class="p6"><br></p>
  73 <p class="p6"><br></p>
  74 <p class="p6"><br></p>
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