kwave software package provides sound editor for KDE, 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 kwave
kwave is installed in your system.
Make ensure the kwave package were installed using the commands given below,
$ sudo dpkg-query -l | grep kwave *
You will get with kwave package name, version, architecture and description in a table
| Distro | Debian 8 jessie |
| Section | KDE |
| Package | kwave |
| Version | 0.8.11-1-1+deb8u1 |
| Description | sound editor for KDE |
| Sub Section | KDE |