$ sudo apt-get update
$ sudo apt-get install libasound2-plugins 

libasound2-plugins is installed in your system.

Make ensure the libasound2-plugins package were installed using the commands given below,

$ sudo dpkg-query -l | grep libasound2-plugins *

You will get with libasound2-plugins package name, version, architecture and description in a table

libasound2-plugins package basic information: