/usr/share/ubuntustudio/applications/hdspmixer.desktop is in ubuntustudio-default-settings 0.61.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 | [Desktop Entry]
Type=Application
Name=HDSPMixer
GenericName=
Comment=Control the advanced routing features of the RME Hammerfall DSP
Icon=hdspmixer
Exec=hdspmixer
Terminal=false
Categories=AudioVideo;Audio;
|