###### (This is the documentation for SDL3, which is the current stable version. [SDL2](https://wiki.libsdl.org/SDL2/) was the previous version!) # SDL_AUDIO_BYTESIZE Retrieve the size, in bytes, from an [SDL_AudioFormat](SDL_AudioFormat). ## Header File Defined in [](https://github.com/libsdl-org/SDL/blob/main/include/SDL3/SDL_audio.h) ## Syntax ```c #define SDL_AUDIO_BYTESIZE(x) (SDL_AUDIO_BITSIZE(x) / 8) ``` ## Macro Parameters | | | | ----- | -------------------------------------------- | | **x** | an [SDL_AudioFormat](SDL_AudioFormat) value. | ## Return Value Returns data size in bytes. ## Remarks For example, `SDL_AUDIO_BYTESIZE(SDL_AUDIO_S16)` returns 2. ## Thread Safety It is safe to call this macro from any thread. ## Version This macro is available since SDL 3.1.3. ---- [CategoryAPI](CategoryAPI), [CategoryAPIMacro](CategoryAPIMacro), [CategoryAudio](CategoryAudio)