As aplicações que o ranger usa estão definidas no arquivo rifle.conf.
Estas são as configurações padrão no Fedora para material relacionado a áudio:
#--------------------------------------------
# Audio without X
#-------------------------------------------
mime ^audio|ogg$, terminal, has mplayer = mplayer -- "$@"
mime ^audio|ogg$, terminal, has mplayer2 = mplayer2 -- "$@"
mime ^audio|ogg$, terminal, has mpv = mpv -- "$@"
ext midi?, terminal, has wildmidi = wildmidi -- "$@"
#--------------------------------------------
# Video/Audio with a GUI
#-------------------------------------------
mime ^video|audio, has gmplayer, X, flag f = gmplayer -- "$@"
mime ^video|audio, has smplayer, X, flag f = smplayer "$@"
mime ^video, has mpv, X, flag f = mpv -- "$@"
mime ^video, has mpv, X, flag f = mpv --fs -- "$@"
mime ^video, has mplayer2, X, flag f = mplayer2 -- "$@"
mime ^video, has mplayer2, X, flag f = mplayer2 -fs -- "$@"
mime ^video, has mplayer, X, flag f = mplayer -- "$@"
mime ^video, has mplayer, X, flag f = mplayer -fs -- "$@"
mime ^video|audio, has vlc, X, flag f = vlc -- "$@"
mime ^video|audio, has totem, X, flag f = totem -- "$@"
mime ^video|audio, has totem, X, flag f = totem --fullscreen -- "$@"
Localize sua pasta de configuração ranger (geralmente $ HOME / .config / ranger ), abra o arquivo rifle.conf e procure por essas linhas.