Help/UGens/Multichannel/Panners/DecodeB2.html

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  25 <p class="p1"><span class="s1"><b>DecodeB2<span class="Apple-tab-span"> </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span></b></span><b>2D Ambisonic B-format decoder</b></p>
  26 <p class="p2"><br></p>
  27 <p class="p3"><b>DecodeB2.kr(numChans, w, x, y, orientation)</b></p>
  28 <p class="p4"><br></p>
  29 <p class="p3">Decode a two dimensional ambisonic B-format signal to a set of speakers in a regular polygon.</p>
  30 <p class="p3">The outputs will be in clockwise order. The position of the first speaker is either center or left of center.</p>
  31 <p class="p3"><b>numChans</b> - number of output speakers. Typically 4 to 8.</p>
  32 <p class="p3"><b>w, x, y</b> - the B-format signals.<span class="Apple-converted-space"> </span></p>
  33 <p class="p3"><b>orientation</b> - Should be zero if the front is a vertex of the polygon. The first speaker will be directly in front. Should be 0.5 if the front bisects a side of the polygon. Then the first speaker will be the one left of center. Default is 0.5.</p>
  34 <p class="p4"><br></p>
  35 <p class="p4"><br></p>
  36 <p class="p5">(</p>
  37 <p class="p5">{</p>
  38 <p class="p5"><span class="Apple-tab-span">     </span><span class="s2">var</span> w, x, y, p, a, b, c, d;</p>
  39 <p class="p6"><span class="Apple-tab-span">     </span></p>
  40 <p class="p5"><span class="Apple-tab-span">     </span>p = <span class="s2">PinkNoise</span>.ar; <span class="s3">// source</span></p>
  41 <p class="p6"><span class="Apple-tab-span">     </span></p>
  42 <p class="p7"><span class="s4"><span class="Apple-tab-span">    </span></span>// B-format encode</p>
  43 <p class="p5"><span class="Apple-tab-span">     </span>#w, x, y = <span class="s2">PanB2</span>.ar(p, <span class="s2">MouseX</span>.kr(-1,1), 0.1);<span class="Apple-converted-space"> </span></p>
  44 <p class="p6"><span class="Apple-tab-span">     </span></p>
  45 <p class="p7"><span class="s4"><span class="Apple-tab-span">    </span></span>// B-format decode to quad</p>
  46 <p class="p5"><span class="Apple-tab-span">     </span>#a, b, c, d = <span class="s2">DecodeB2</span>.ar(4, w, x, y);</p>
  47 <p class="p6"><span class="Apple-tab-span">     </span></p>
  48 <p class="p7"><span class="s4"><span class="Apple-tab-span">    </span>[a, b, d, c] </span>// reorder to my speaker arrangement: Lf Rf Lr Rr</p>
  49 <p class="p5">}.play;</p>
  50 <p class="p5">)</p>
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