A variable controlling the default audio frequency.
Defined in <SDL3/SDL_hints.h>
#define SDL_HINT_AUDIO_FREQUENCY "SDL_AUDIO_FREQUENCY"
If the application doesn't specify the audio frequency when opening the device, this hint can be used to specify a default frequency that will be used. This defaults to "44100".
This hint should be set before an audio device is opened.
This hint is available since SDL 3.0.0.