Install libphonon4qt5-dev by entering the following commands in the terminal:
sudo apt update sudo apt install libphonon4qt5-dev
multimedia framework from KDE using Qt 5 - development files
Phonon is a Qt 5 multimedia API, which provides a task-oriented abstraction layer for capturing, mixing, processing, and playing audio and video content. . This package contains the development files needed to build Qt 5 applications using the Phonon cross-platform multimedia framework.