Add audio equalizer

[RALMAZ]

https://codepen.io/seanfree/pen/KRwEeZ

[RALMAZ]

https://github.com/goldfire/howler.js#documentation
Removed

[RALMAZ]

https://codepen.io/creativeocean/pen/bmXmrE
Add it

[RALMAZ]

https://codepen.io/Tsankashvili/pen/aryqEx