freq Audio frequency in samples per second
format Audio data format
channels Number of channels: 1 mono, 2 stereo
silence Audio buffer silence value (calculated)
samples Audio buffer size in samples
size Audio buffer size in bytes (calculated)
callback(..) Callback function for filling the audio buffer
The SDL_!AudioSpec? structure is used to describe the format of some audio data. This structure is used by SDL_!OpenAudio? and SDL_LoadWAV. While all fields are used by SDL_!OpenAudio? only freq, format, samples and channels are used by SDL_LoadWAV. We will detail these common members here.
freq The number of samples sent to the sound device every second. Common values are 11025, 22050 and 44100. The higher the better.
format Specifies the size and type of each sample element
AUDIO_U16 or AUDIO_U16LSB
AUDIO_S16 or AUDIO_S16LSB
channels The number of seperate sound channels. 1 is mono (single channel), 2 is stereo (dual channel).