jconvolver software package provides Convolution reverb Engine for JACK, you can install in your Debian 8 (Jessie) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install jconvolver
jconvolver is installed in your system.
Make ensure the jconvolver package were installed using the commands given below,
$ sudo dpkg-query -l | grep jconvolver *
You will get with jconvolver package name, version, architecture and description in a table
| Distro | Debian 8 jessie |
| Section | Sound |
| Package | jconvolver |
| Version | 0.9.3-1 |
| Description | Convolution reverb Engine for JACK |
| Sub Section | Sound |