# Sum of sine waves

**URL:** <https://discourse.processing.org/t/sum-of-sine-waves/36134>\
**Category:** Español\
**Created:** [April 5, 2022, 3:05pm UTC](https://discourse.processing.org/t/sum-of-sine-waves/36134 "2022-04-05T15:05:28Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Arianna](https://avatars.discourse-cdn.com/v4/letter/a/91b2a8/32.png) [@Arianna](https://discourse.processing.org/u/Arianna)\
**Post date:** [April 5, 2022, 3:05pm UTC](https://discourse.processing.org/t/sum-of-sine-waves/36134/1 "2022-04-05T15:05:28Z")

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Hola amigos quisiera sumar dos ondas sinusoidales…  
Ayúdenme xfa que soy nueva…

Mediante un objecte de tipo AudioOutput  
Con el siguiente código visualizo buffer: left, right  
Pero… como visualizo buffers mix, que contiene la mezcla de los buffers left i right ??

```auto
  for (int i = 0; i < out.bufferSize() - 1; i++) {
    stroke(0,0,255); 
    line(i, 50 - out.left.get(i)*25, i+1, 50 - out.left.get(i+1)*25);
    stroke(255,0,0);
    line(i, 375 - out.right.get(i)*25, i+1, 375 - out.right.get(i+1)*25);
}

```

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<div class="post-metadata">

**Author:** ![glv](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.processing.org/glv/32/18785_2.png) [@glv](https://discourse.processing.org/u/glv)\
**Post date:** [April 5, 2022, 4:06pm UTC](https://discourse.processing.org/t/sum-of-sine-waves/36134/2 "2022-04-05T16:06:49Z")

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Hello,

Consider drawing a third line and add the y components of each buffer.

`:)`