# Can I read\_voltage.pde to graph voltage as sound?

**URL:** https://discourse.processing.org/t/can-i-read-voltage-pde-to-graph-voltage-as-sound/14551
**Category:** Electronics (Arduino, etc.)
**Created:** [October 9, 2019, 2:55pm UTC](https://discourse.processing.org/t/can-i-read-voltage-pde-to-graph-voltage-as-sound/14551 "2019-10-09T14:55:32Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![MatthewClark](https://avatars.discourse-cdn.com/v4/letter/m/58f4c7/32.png) [@MatthewClark](https://discourse.processing.org/u/MatthewClark)
#### Post date: [October 9, 2019, 2:55pm UTC](https://discourse.processing.org/t/can-i-read-voltage-pde-to-graph-voltage-as-sound/14551/1 "2019-10-09T14:55:32Z")

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Hello,  
Pretty new to Processing so hopefully this makes sense:

Am currently running `voltage.ino` on an Arduino and am graphing the voltage in Processing using `read_voltage.pde`. This allows me to see a visual of the voltage however I wanted to know if it is possible to the same but with an audio output?  
Can anyone recommend a library that I could download that may help with what I am looking for?

Any help would be much appreciated, thanks

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<div class="post-metadata">

### Author: ![kll](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.processing.org/kll/32/964_2.png) [@kll](https://discourse.processing.org/u/kll)
#### Post date: [October 10, 2019, 12:48am UTC](https://discourse.processing.org/t/can-i-read-voltage-pde-to-graph-voltage-as-sound/14551/2 "2019-10-10T00:48:16Z")

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hi there,  
happy to have you here.

when you ref to a arduino sketch and a processing sketch ? talk to each other ?  
there are two good ways:

- link to the reference / example / tutorial / video / where you find that
- post the code here  
( using the `</> Preformmated text ` editor menu button to paste it in )

* * *

sound:  
processing comes ready with a internal sound library

- Sound: [https://processing.org/reference/libraries/sound/index.html](https://processing.org/reference/libraries/sound/index.html)  
PDE: / Files / Examples / Libraries / Sound / Oscillators / …

and two big additional ( means can load via the contribution manager )

- Beads: [http://www.beadsproject.net/](http://www.beadsproject.net/)
- Minim: [http://code.compartmental.net/minim/](http://code.compartmental.net/minim/)

all can play sound but also create noise…

* * *

after you have installed a add library you might need to restart processing to find its loaded examples.