---
name: "SDL_AUDIO_FRAMESIZE"
section: "3"
platform: "linux"
package: "libsdl3-doc"
version: "3.2.10+ds-1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/SDL_AUDIO_FRAMESIZE"
---

# SDL\_AUDIO\_FRAMESIZE(3)

Calculate the size of each audio frame (in bytes) from an SDL\_AudioSpec .

## NAME

SDL\_AUDIO\_FRAMESIZE - Calculate the size of each audio frame (in bytes) from an  **SDL\_AudioSpec** .

## HEADER FILE

Defined in SDL3/SDL\_audio.h

## SYNOPSIS

```
#include "SDL3/SDL.h"
```

**#define SDL\_AUDIO\_FRAMESIZE(x) (SDL\_AUDIO\_BYTESIZE((x).format) \* (x).channels)**

## DESCRIPTION

This reports on the size of an audio sample frame: stereo  **Sint16**

data (2 channels of 2 bytes each) would be 4 bytes per frame, for example.

## RETURN VALUE

Returns the number of bytes used per sample frame.

## THREAD SAFETY

It is safe to call this macro from any thread.

## AVAILABILITY

This macro is available since SDL 3.2.0.