Install libraul-dev by entering the following commands in the terminal:
sudo apt update sudo apt install libraul-dev
Description:
real time audio utility library -- development files
Raul (Realtime Audio Utility Library) is a C++ utility library primarily aimed at audio/musical applications. . This package contains the development files for libraul.
Homepage: http://drobilla.net/software/raul/
Version: 0.8.0+dfsg0-0.1ubuntu1
Section: universe/libdevel