Help/UGens/Playback and Recording/DiskOut.html

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  30 <p class="p1"><b>DiskOut</b></p>
  31 <p class="p2"><br></p>
  32 <p class="p3"><b>DiskOut.ar(bufnum, channelsArray)</b></p>
  33 <p class="p4"><br></p>
  34 <p class="p3">Record to a soundfile to disk. Uses a <a href="../../ServerArchitecture/Buffer.html"><span class="s1">Buffer</span></a>.</p>
  35 <p class="p3"><b>bufnum</b> - the number of the buffer to write to (prepared with /b-write or Buffer.write)<span class="Apple-converted-space"> </span></p>
  36 <p class="p3"><b>channelsArray</b> - the Array of channels to write to the file.</p>
  37 <p class="p2"><br></p>
  38 <p class="p3">The output of DiskOut is the number of frames written to disk.</p>
  39 <p class="p2"><br></p>
  40 <p class="p3">Note that the number of channels in the buffer and the channelsArray must be the same, otherwise DiskOut will fail silently (and not write anything to your file).</p>
  41 <p class="p2"><br></p>
  42
  43 <p class="p5"><span class="s2">s.boot; </span>// start the server</p>
  44 <p class="p6">(</p>
  45 <p class="p5">// something to record</p>
  46 <p class="p7"><span class="s3">SynthDef</span><span class="s2">(</span>"bubbles"<span class="s2">, {</span></p>
  47 <p class="p6"><span class="Apple-tab-span">     </span><span class="s3">var</span> f, zout;</p>
  48 <p class="p6"><span class="Apple-tab-span">     </span>f = <span class="s3">LFSaw</span>.kr(0.4, 0, 24, <span class="s3">LFSaw</span>.kr([8,7.23], 0, 3, 80)).midicps; <span class="s4">// glissando function</span></p>
  49 <p class="p6"><span class="Apple-tab-span">     </span>zout = <span class="s3">CombN</span>.ar(<span class="s3">SinOsc</span>.ar(f, 0, 0.04), 0.2, 0.2, 4); <span class="s4">// echoing sine wave</span></p>
  50 <p class="p6"><span class="Apple-tab-span">     </span><span class="s3">Out</span>.ar(0, zout);</p>
  51 <p class="p6">}).send(s);</p>
  52 <p class="p8"><br></p>
  53 <p class="p5">// this will record to the disk</p>
  54 <p class="p7"><span class="s3">SynthDef</span><span class="s2">(</span>"help-Diskout"<span class="s2">, {</span><span class="s3">arg</span><span class="s2"> bufnum;</span></p>
  55 <p class="p6"><span class="Apple-tab-span">     </span><span class="s3">DiskOut</span>.ar(bufnum, <span class="s3">In</span>.ar(0,2));</p>
  56 <p class="p6">}).send(s);</p>
  57 <p class="p8"><br></p>
  58 <p class="p5">// this will play it back</p>
  59 <p class="p7"><span class="s3">SynthDef</span><span class="s2">(</span>"help-Diskin-2chan"<span class="s2">, { </span><span class="s3">arg</span><span class="s2"> bufnum = 0;</span></p>
  60 <p class="p6"><span class="Apple-tab-span">     </span><span class="s3">Out</span>.ar(0, <span class="s3">DiskIn</span>.ar(2, bufnum));</p>
  61 <p class="p6">}).send(s);</p>
  62 <p class="p6">)</p>
  63 <p class="p2"><br></p>
  64 <p class="p3"><b>Object Style:</b></p>
  65 <p class="p8"><br></p>
  66 <p class="p5">// start something to record</p>
  67 <p class="p6">x = <span class="s3">Synth</span>.new(<span class="s5">"bubbles"</span>);</p>
  68 <p class="p8"><br></p>
  69 <p class="p5">// allocate a disk i/o buffer</p>
  70 <p class="p6">b= <span class="s3">Buffer</span>.alloc(s, 65536, 2);</p>
  71 <p class="p8"><br></p>
  72 <p class="p5">// create an output file for this buffer, leave it open</p>
  73 <p class="p6">b.write(<span class="s5">"~/diskouttest.aiff"</span>.standardizePath, <span class="s5">"aiff"</span>, <span class="s5">"int16"</span>, 0, 0, <span class="s3">true</span>);</p>
  74 <p class="p5">// create the diskout node; making sure it comes after the source</p>
  75 <p class="p7"><span class="s2">d = </span><span class="s3">Synth</span><span class="s2">.tail(</span><span class="s3">nil</span><span class="s2">, </span>"help-Diskout"<span class="s2">, [</span>"bufnum"<span class="s2">, b]);</span></p>
  76 <p class="p5">// stop recording</p>
  77 <p class="p6">d.free;</p>
  78 <p class="p5">// stop the bubbles</p>
  79 <p class="p6">x.free;</p>
  80 <p class="p5">// close the buffer and the soundfile</p>
  81 <p class="p6">b.close;</p>
  82 <p class="p5">// free the buffer</p>
  83 <p class="p6">b.free;</p>
  84 <p class="p2"><br></p>
  85 <p class="p5">// play it back</p>
  86 <p class="p6">(</p>
  87 <p class="p7"><span class="s2">x = </span><span class="s3">Synth</span><span class="s2">.basicNew(</span>"help-Diskin-2chan"<span class="s2">);</span></p>
  88 <p class="p6">m = { <span class="s3">arg</span> buf; x.addToHeadMsg(<span class="s3">nil</span>, [<span class="s6">\bufnum</span>,buf])};</p>
  89 <p class="p8"><br></p>
  90 <p class="p6">b = <span class="s3">Buffer</span>.cueSoundFile(s,<span class="s5">"~/diskouttest.aiff"</span>.standardizePath, 0, 2, completionMessage: m);</p>
  91 <p class="p6">)</p>
  92 <p class="p6">x.free; b.close; b.free; <span class="s4">// cleanup</span></p>
  93 <p class="p2"><br></p>
  94 <p class="p3"><b>Messaging Style</b><span class="s7">:</span></p>
  95 <p class="p8"><br></p>
  96 <p class="p5">// The same thing done in Messaging Style (less overhead but without the convienence of objects)</p>
  97 <p class="p5">// start something to record</p>
  98 <p class="p6">s.sendMsg(<span class="s5">"/s_new"</span>, <span class="s5">"bubbles"</span>, 2003, 1, 1);</p>
  99 <p class="p8"><br></p>
 100 <p class="p5">// allocate a disk i/o buffer</p>
 101 <p class="p6">s.sendMsg(<span class="s5">"/b_alloc"</span>, 0, 65536, 2); <span class="s4">// Buffer number is 0</span></p>
 102 <p class="p8"><br></p>
 103 <p class="p5">// create an output file for this buffer, leave it open</p>
 104 <p class="p6">s.sendMsg(<span class="s5">"/b_write"</span>, 0, <span class="s5">"~/diskouttest.aiff"</span>.standardizePath, <span class="s5">"aiff"</span>, <span class="s5">"int16"</span>, 0, 0, 1);</p>
 105 <p class="p8"><br></p>
 106 <p class="p5">// create the diskout node</p>
 107 <p class="p6">s.sendMsg(<span class="s5">"/s_new"</span>, <span class="s5">"help-Diskout"</span>, 2004, 3, 2003, <span class="s5">"bufnum"</span>, 0);</p>
 108 <p class="p8"><br></p>
 109 <p class="p6">s.sendMsg(<span class="s5">"/n_free"</span>, 2004); <span class="s4">// stop recording</span></p>
 110 <p class="p6">s.sendMsg(<span class="s5">"/n_free"</span>, 2003); <span class="s4">// stop the bubbles</span></p>
 111 <p class="p8"><br></p>
 112 <p class="p5"><span class="s2">s.sendMsg(</span><span class="s5">"/b_close"</span><span class="s2">, 0); </span>// close the file.</p>
 113 <p class="p6">s.sendMsg(<span class="s5">"/b_free"</span>, 0);</p>
 114 <p class="p2"><br></p>
 115 <p class="p4"><br></p>
 116 <p class="p3">See <a href="RecordBuf.html"><span class="s1">RecordBuf</span></a> for recording into a buffer in memory.</p>
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