Binary package “libsdl-mixer1.2” in ubuntu bionic

Mixer library for Simple DirectMedia Layer 1.2, libraries

 SDL_mixer is a sample multi-channel audio mixer library. It supports any
 number of simultaneously playing channels of 16 bit stereo audio, plus a single
 channel of music, mixed by the popular FLAC, MikMod MOD, Timidity MIDI, Ogg
 Vorbis, and SMPEG MP3 libraries.
 This package contains the shared library.