# Particles reactive to sound
**URL:** https://discourse.processing.org/t/particles-reactive-to-sound/15798
**Category:** Project Guidance
**Created:** [November 25, 2019, 1:55pm UTC](https://discourse.processing.org/t/particles-reactive-to-sound/15798 "2019-11-25T13:55:05Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@marcoo](https://discourse.processing.org/u/marcoo)
#### Post date: [November 25, 2019, 1:55pm UTC](https://discourse.processing.org/t/particles-reactive-to-sound/15798/1 "2019-11-25T13:55:05Z")
Hi, i’m new at generative design/art and i was looking how i could create reactive particles to sound. What i have its the code of daniel shiffman of “particle system” and i want to add a music and see particles appearing and doing new movements when volume increases like this example bellow.
[https://www.youtube.com/watch?v=0IDvLaTFa6U](https://www.youtube.com/watch?v=0IDvLaTFa6U)
---
### Author:  [@jeremydouglass](https://discourse.processing.org/u/jeremydouglass)
#### Post date: [December 7, 2019, 5:06am UTC](https://discourse.processing.org/t/particles-reactive-to-sound/15798/2 "2019-12-07T05:06:49Z")
> [@marcoo](#):
>
> see particles appearing and doing new movements when volume increases
You can break that into two ideas:
1. when volume goes up, number of particles increases
2. when volume goes up, particles move straighter / curvy / faster / slower / etc.
So, using the sound library or minim, create a sketch that displays a value for the volume each frame. You will find example sketches in PDE with either library demonstrating this.
Then use the that volume to control the particle count and/or the particle path.