Help/UGens/Playback and Recording/DiskIn.html

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  31 <p class="p1"><b>DiskIn<span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>stream in audio from a file</b></p>
  32 <p class="p1">add</p>
  33 <p class="p2"><br></p>
  34 <p class="p3"><b>DiskIn.ar(numChannels, bufnum, loop )</b></p>
  35 <p class="p2"><br></p>
  36 <p class="p3">Continuously play a longer soundfile from disk.<span class="Apple-converted-space">  </span>This requires a buffer to be preloaded with one buffer size of sound. If loop is set to 1, the soundfile will loop.</p>
  37 <p class="p4"><br></p>
  38 <p class="p3"><b>See also:</b> <a href="PlayBuf.html"><span class="s1">PlayBuf</span></a>, <a href="../Oscillators/BufRd.html"><span class="s2">BufRd</span></a><span class="Apple-converted-space"> </span></p>
  39 <p class="p5"><br></p>
  40 <p class="p6"><span class="s3">s.boot; </span>// start the server</p>
  41 <p class="p5"><br></p>
  42 <p class="p7">(</p>
  43 <p class="p7"><span class="s4">SynthDef</span>(<span class="s5">"help-Diskin"</span>, { <span class="s4">arg</span> bufnum = 0;</p>
  44 <p class="p7"><span class="Apple-tab-span">     </span><span class="s4">Out</span>.ar(0, <span class="s4">DiskIn</span>.ar(1, bufnum, 1));</p>
  45 <p class="p7">}).add</p>
  46 <p class="p7">)</p>
  47 <p class="p5"><br></p>
  48 <p class="p8"><b>Using Buffer (Object Style)</b></p>
  49 <p class="p5"><br></p>
  50 <p class="p7">b = <span class="s4">Buffer</span>.cueSoundFile(s, <span class="s5">"sounds/a11wlk01-44_1.aiff"</span>, 0, 1);</p>
  51 <p class="p5"><br></p>
  52 <p class="p7">x = { <span class="s4">DiskIn</span>.ar(1, b) }.play;</p>
  53 <p class="p5"><br></p>
  54 <p class="p7">b.close;<span class="Apple-tab-span">     </span></p>
  55 <p class="p5"><br></p>
  56 <p class="p6">// again</p>
  57 <p class="p6">// note the like named instance method, but different arguments</p>
  58 <p class="p9"><span class="s3">b.cueSoundFile(</span>"sounds/a11wlk01-44_1.aiff"<span class="s3">, 0);<span class="Apple-tab-span">     </span></span></p>
  59 <p class="p5"><span class="Apple-tab-span">     </span></p>
  60 <p class="p7">x.free; b.close; b.free;<span class="Apple-tab-span">     </span></p>
  61 <p class="p5"><br></p>
  62 <p class="p5"><br></p>
  63 <p class="p5"><br></p>
  64 <p class="p6">// loop it (for better looping use PlayBuf!)</p>
  65 <p class="p7">(</p>
  66 <p class="p9"><span class="s3">p = </span>"sounds/a11wlk01-44_1.aiff"<span class="s3">;</span></p>
  67 <p class="p7">a = <span class="s4">SoundFile</span>.new;</p>
  68 <p class="p7">a.openRead(p);</p>
  69 <p class="p7">d = a.numFrames/s.sampleRate; <span class="s6">// get the duration</span></p>
  70 <p class="p6"><span class="s3">a.close; </span>// don't forget</p>
  71 <p class="p7">b = <span class="s4">Buffer</span>.cueSoundFile(s, p, 0, 1);</p>
  72 <p class="p7">f = { <span class="s4">DiskIn</span>.ar(1, b) };</p>
  73 <p class="p7">x = f.play;</p>
  74 <p class="p10"><span class="s3">r = </span>Routine<span class="s3">({</span></p>
  75 <p class="p7"><span class="Apple-tab-span">     </span>loop({ d.wait; x.free; x = f.play; b.close( b.cueSoundFileMsg(p, 0)) });</p>
  76 <p class="p7">}).play;</p>
  77 <p class="p7">)</p>
  78 <p class="p6"><span class="s3">r.stop; x.free; b.close; b.free; </span>// you need to do all these to properly cleanup</p>
  79 <p class="p5"><br></p>
  80 <p class="p5"><br></p>
  81 <p class="p5"><br></p>
  82 <p class="p6">// cue and play right away</p>
  83 <p class="p7">(</p>
  84 <p class="p7"><span class="s4">SynthDef</span>(<span class="s5">"help-Diskin"</span>, { <span class="s4">arg</span> bufnum = 0;</p>
  85 <p class="p7"><span class="Apple-tab-span">     </span><span class="s4">Out</span>.ar(0, <span class="s4">DiskIn</span>.ar(1, bufnum));</p>
  86 <p class="p7">}).add;</p>
  87 <p class="p7">)</p>
  88 <p class="p7">(<span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span></p>
  89 <p class="p7">x = <span class="s4">Synth</span>.basicNew(<span class="s5">"help-Diskin"</span>);</p>
  90 <p class="p7">m = { <span class="s4">arg</span> buf; x.addToHeadMsg(<span class="s4">nil</span>, [<span class="s7">\bufnum</span>, buf])};</p>
  91 <p class="p5"><br></p>
  92 <p class="p7">b = <span class="s4">Buffer</span>.cueSoundFile(s,<span class="s5">"sounds/a11wlk01-44_1.aiff"</span>,0,1, completionMessage: m);</p>
  93 <p class="p7">)<span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span></p>
  94 <p class="p5"><br></p>
  95 <p class="p7">x.free; b.close; b.free;<span class="Apple-tab-span">     </span><span class="s6">//clean up</span></p>
  96 <p class="p5"><br></p>
  97 <p class="p5"><br></p>
  98 <p class="p5"><br></p>
  99 <p class="p8"><b>OSC Messaging Style</b></p>
 100 <p class="p5"><br></p>
 101 <p class="p6">// allocate a disk i/o buffer</p>
 102 <p class="p7">s.sendMsg(<span class="s5">"/b_alloc"</span>, 0, 65536, 1);</p>
 103 <p class="p5"><br></p>
 104 <p class="p6">// open an input file for this buffer, leave it open</p>
 105 <p class="p9"><span class="s3">s.sendMsg(</span>"/b_read"<span class="s3">, 0, </span>"sounds/a11wlk01-44_1.aiff"<span class="s3">, 0, 65536, 0, 1);</span></p>
 106 <p class="p5"><br></p>
 107 <p class="p6">// create a diskin node</p>
 108 <p class="p7">s.sendMsg(<span class="s5">"/s_new"</span>, <span class="s5">"help-Diskin"</span>, x = s.nextNodeID, 1, 1);</p>
 109 <p class="p5"><br></p>
 110 <p class="p6"><span class="s3">s.sendMsg(</span><span class="s5">"/b_close"</span><span class="s3">, 0); </span>// close the file (very important!)</p>
 111 <p class="p5"><br></p>
 112 <p class="p5"><br></p>
 113 <p class="p6">// again<span class="Apple-converted-space"> </span></p>
 114 <p class="p6">// don't need to reallocate and Synth is still reading</p>
 115 <p class="p9"><span class="s3">s.sendMsg(</span>"/b_read"<span class="s3">, 0, </span>"sounds/a11wlk01-44_1.aiff"<span class="s3">, 0, 0, 0, 1);</span></p>
 116 <p class="p5"><br></p>
 117 <p class="p7">s.sendMsg(<span class="s5">"/n_free"</span>, x); <span class="s6">// stop reading</span></p>
 118 <p class="p5"><br></p>
 119 <p class="p6"><span class="s3">s.sendMsg(</span><span class="s5">"/b_close"</span><span class="s3">, 0); </span>// close the file.</p>
 120 <p class="p5"><br></p>
 121 <p class="p6"><span class="s3">s.sendMsg(</span><span class="s5">"/b_free"</span><span class="s3">, 0); </span>// frees the buffer</p>
 122 <p class="p5"><br></p>
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