Create a MIX_Audio that generates a sinewave.
Defined in <SDL3_mixer/SDL_mixer.h>
int hz, float amplitude); MIX_Audio * MIX_CreateSineWaveAudio(MIX_Mixer *mixer,
MIX_Mixer * | mixer | a mixer this audio is intended to be used with. May be NULL. |
int | hz | the sinewave's frequency in Hz. |
float | amplitude | the sinewave's amplitude from 0.0f to 1.0f. |
(MIX_Audio *) Returns an audio object that can be used to make sound on a mixer, or NULL on failure; call SDL_GetError() for more information.
This is useful just to have something to play, perhaps for testing or debugging purposes.
The resulting MIX_Audio will generate infinite audio when assigned to a track.
You specify its frequency in Hz (determines the pitch of the sinewave's audio) and amplitude (determines the volume of the sinewave: 1.0f is very loud, 0.0f is silent).
MIX_Audio objects can be shared between multiple mixers. The mixer
parameter just suggests the most likely mixer to use this audio, in case some optimization might be applied, but this is not required, and a NULL mixer may be specified.
It is safe to call this function from any thread.
This function is available since SDL_mixer 3.0.0.