SDL_HINT_AUDIO_ALSA_DEFAULT_DEVICE - Specify the default ALSA audio device name.

       This hint is available since SDL 3.2.0.

       This variable is a specific audio device to open when the "default" audio device is used.

       This     hint     will     be    ignored    when    opening    the    default    playback    device    if
       SDL_HINT_AUDIO_ALSA_DEFAULT_PLAYBACK_DEVICE is set, or when  opening  the  default  recording  device  if
       SDL_HINT_AUDIO_ALSA_DEFAULT_RECORDING_DEVICE is set.

       This hint should be set before an audio device is opened.

       SDL_HINT_AUDIO_ALSA_DEFAULT_DEVICE - Specify the default ALSA audio device name.

SDL_HINT_AUDIO_ALSA_DEFAULT_PLAYBACK_DEVICE(3), SDL_HINT_AUDIO_ALSA_DEFAULT_RECORDING_DEVICE(3)

Simple Directmedia Layer                           SDL 3.2.20              SDL_HINT_AUDIO_ALSA_DEFAULT_DEVICE(3)

#include<SDL3/SDL_hints.h>#defineSDL_HINT_AUDIO_ALSA_DEFAULT_DEVICE"SDL_AUDIO_ALSA_DEFAULT_DEVICE"