SDL_AudioSpec.3type - Man Page

#include <SDL3/SDL_audio.h>

typedef struct SDL_AudioSpec
{
    SDL_AudioFormat format;     /**< Audio data format */
    int channels;               /**< Number of channels: 1 mono, 2 stereo, etc */
    int freq;                   /**< sample rate: sample frames per second */
} SDL_AudioSpec;

This struct is available since SDL 3.2.0.

SDL_AudioFormat(3type)