Unit generator

<h2 id="examples">Examples</h2>
<p>A simple unit generator called OSC could generate a sinusoidal waveform of a specific frequency (given as an input or argument to the <a href="/facts/Function_(programming)/9vFJrg0A">function</a> or <a href="/facts/Class_(computer_science)/zvzkSAtE">class</a> that represents the unit generator). ENV could be a unit generator that delineates a breakpoint function. Thus ENV could be used to drive the <a href="/facts/Amplitude/aEckuXJM">amplitude</a> <a href="/facts/ADSR_envelope/FJylhHed">envelope</a> of the oscillator OSC through the equation OSC*ENV. Unit generators often use predefined arrays of values for their functions (which are filled with <a href="/facts/Waveform/yAskMREw">waveforms</a> or other <a href="/facts/Shape/nww0x85d">shapes</a> by calling a specific generator function).
</p><p>In the <a href="/facts/SuperCollider/nTQ1aTQo">SuperCollider</a> language, the .ar <a href="/facts/Method_(computer_science)/8kAXxVYs">method</a> in the SinOsc class<a class="footnote-ref" id="fnref:6" href="#fn:6"><sup>6</sup></a> <a href="/facts/Inheritance_(object-oriented_programming)/a7R1xv8n">inherits</a> methods from an overarching unit generator class (UGen)<a class="footnote-ref" id="fnref:7" href="#fn:7"><sup>7</sup></a> that generates a <a href="/facts/Sine_wave/mD1CB09M">sine wave</a>.  The example below makes a sine wave at frequency 440, phase 0, and amplitude 0.5.
</p>
SinOsc.ar(440, 0, 0.5);
<h2 id="see-also">See also</h2>
<ul><li><a href="/facts/Tuning_generator/Y1eHodvn">Tuning generator</a></li></ul>

<h2 id="references">References</h2>

<ol>
<li id="fn:1"><p>"ChucK - [Language Specification]". chuck.stanford.edu. Retrieved 2024-11-03. <a href="https://chuck.stanford.edu/doc/language/ugen.html" target="_blank">https://chuck.stanford.edu/doc/language/ugen.html</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li>
<li id="fn:2"><p>Lazzarini, Victor (2017). "Supporting an Object-Oriented Approach to Unit Generator Development: The Csound Plugin Opcode Framework". Applied Sciences. 7 (10): 970. doi:10.3390/app7100970. ISSN 2076-3417. <a href="https://mural.maynoothuniversity.ie/11607/" target="_blank">https://mural.maynoothuniversity.ie/11607/</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></p></li>
<li id="fn:3"><p>"UGen | SuperCollider 3.13.0 Help". docs.supercollider.online. Retrieved 2024-11-03. <a href="https://docs.supercollider.online/Classes/UGen.html" target="_blank">https://docs.supercollider.online/Classes/UGen.html</a> <a href="#fnref:3" class="footnote-back-ref">↩</a></p></li>
<li id="fn:4"><p>Smith, Julius (2007). "Unit-generator architectures in computer music". Journal of the Acoustical Society of America. 122 (5): 3080. doi:10.1121/1.2943000. <a href="https://www.researchgate.net/publication/252185943" target="_blank">https://www.researchgate.net/publication/252185943</a> <a href="#fnref:4" class="footnote-back-ref">↩</a></p></li>
<li id="fn:5"><p>"Bell Labs: Background: Bell Labs Text-to-Speech Synthesis: Then and Now". bell-labs.com. 2000-04-07. Archived from the original on 2000-04-07. Retrieved 2024-11-03. <a href="https://web.archive.org/web/20000407081031/http://www.bell-labs.com/news/1997/march/5/2.html" target="_blank">https://web.archive.org/web/20000407081031/http://www.bell-labs.com/news/1997/march/5/2.html</a> <a href="#fnref:5" class="footnote-back-ref">↩</a></p></li>
<li id="fn:6"><p>"SinOsc | SuperCollider 3.13.0 Help". docs.supercollider.online. Retrieved 2024-11-03. <a href="https://docs.supercollider.online/Classes/SinOsc.html" target="_blank">https://docs.supercollider.online/Classes/SinOsc.html</a> <a href="#fnref:6" class="footnote-back-ref">↩</a></p></li>
<li id="fn:7"><p>"UGen | SuperCollider 3.13.0 Help". docs.supercollider.online. Retrieved 2024-11-03. <a href="https://docs.supercollider.online/Classes/UGen.html" target="_blank">https://docs.supercollider.online/Classes/UGen.html</a> <a href="#fnref:7" class="footnote-back-ref">↩</a></p></li>
</ol>

Unit generator open-in-new

Unit generator