Help/UGens/Delays/AllpassN.html

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  25 <p class="p1"><b>AllpassN<span class="Apple-tab-span">  </span><span class="Apple-tab-span">    </span>all pass delay line with no interpolation</b></p>
  26 <p class="p2"><br></p>
  27 <p class="p3"><b>AllpassN.ar(in, maxdelaytime, delaytime, decaytime, mul, add)</b></p>
  28 <p class="p3"><b>AllpassN.kr(in, maxdelaytime, delaytime, decaytime, mul, add)</b></p>
  29 <p class="p4"><br></p>
  30 <p class="p3">All pass delay line with no interpolation. See also <a href="AllpassC.html"><span class="s1">AllpassC</span></a> which uses cubic interpolation, and <a href="AllpassL.html"><span class="s1">AllpassL</span></a> which uses linear interpolation. Cubic interpolation is more computationally expensive than linear, but more accurate.</p>
  31 <p class="p4"><br></p>
  32 <p class="p5"><span class="s2">See also <a href="BufAllpassN.html">BufAllpassN</a>.</span></p>
  33 <p class="p4"><br></p>
  34 <p class="p3"><b>in</b> - the input signal.</p>
  35 <p class="p3"><b>maxdelaytime</b> - the maximum delay time in seconds. used to initialize the delay buffer size.</p>
  36 <p class="p3"><b>delaytime</b> - delay time in seconds.</p>
  37 <p class="p3"><b>decaytime</b> - time for the echoes to decay by 60 decibels. If this time is negative then the feedback</p>
  38 <p class="p3">coefficient will be negative, thus emphasizing only odd harmonics at an octave lower.</p>
  39 <p class="p4"><br></p>
  40 <p class="p6">// Since the allpass delay has no audible effect as a resonator on</p>
  41 <p class="p6">// steady state sound ...<span class="Apple-converted-space"> </span></p>
  42 <p class="p7"><br></p>
  43 <p class="p8">{ <span class="s3">AllpassC</span>.ar(<span class="s3">WhiteNoise</span>.ar(0.1), 0.01, <span class="s3">XLine</span>.kr(0.0001, 0.01, 20), 0.2) }.play;</p>
  44 <p class="p7"><br></p>
  45 <p class="p6">// ...these examples add the input to the effected sound and compare variants so that you can hear</p>
  46 <p class="p6">// the effect of the phase comb:</p>
  47 <p class="p7"><br></p>
  48 <p class="p8">(</p>
  49 <p class="p8">{</p>
  50 <p class="p8"><span class="Apple-tab-span">     </span>z = <span class="s3">WhiteNoise</span>.ar(0.2);</p>
  51 <p class="p8"><span class="Apple-tab-span">     </span>z + <span class="s3">AllpassN</span>.ar(z, 0.01, <span class="s3">XLine</span>.kr(0.0001, 0.01, 20), 0.2)</p>
  52 <p class="p8">}.play)</p>
  53 <p class="p7"><br></p>
  54 <p class="p8">(</p>
  55 <p class="p8">{</p>
  56 <p class="p8"><span class="Apple-tab-span">     </span>z = <span class="s3">WhiteNoise</span>.ar(0.2);</p>
  57 <p class="p8"><span class="Apple-tab-span">     </span>z + <span class="s3">AllpassL</span>.ar(z, 0.01, <span class="s3">XLine</span>.kr(0.0001, 0.01, 20), 0.2)</p>
  58 <p class="p8">}.play)</p>
  59 <p class="p7"><br></p>
  60 <p class="p8">(</p>
  61 <p class="p8">{</p>
  62 <p class="p8"><span class="Apple-tab-span">     </span>z = <span class="s3">WhiteNoise</span>.ar(0.2);</p>
  63 <p class="p8"><span class="Apple-tab-span">     </span>z + <span class="s3">AllpassC</span>.ar(z, 0.01, <span class="s3">XLine</span>.kr(0.0001, 0.01, 20), 0.2)</p>
  64 <p class="p8">}.play)</p>
  65 <p class="p7"><br></p>
  66 <p class="p6">// used as an echo - doesn't really sound different than Comb,</p>
  67 <p class="p6">// but it outputs the input signal immediately (inverted) and the echoes</p>
  68 <p class="p6">// are lower in amplitude.</p>
  69 <p class="p8">{ <span class="s3">AllpassN</span>.ar(<span class="s3">Decay</span>.ar(<span class="s3">Dust</span>.ar(1,0.5), 0.2, <span class="s3">WhiteNoise</span>.ar), 0.2, 0.2, 3) }.play;</p>
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