AL_API signed char OPENAL_SetFrequency(int channel, int freq);
AL_API signed char OPENAL_SetVolume(int channel, int vol);
AL_API signed char OPENAL_SetPaused(int channel, signed char paused);
AL_API void OPENAL_SetSFXMasterVolume(int volume);
AL_API signed char OPENAL_StopSound(int channel);
AL_API void OPENAL_Stream_Close(OPENAL_STREAM *stream);
AL_API signed char OPENAL_SetFrequency(int channel, int freq);
AL_API signed char OPENAL_SetVolume(int channel, int vol);
AL_API signed char OPENAL_SetPaused(int channel, signed char paused);
AL_API void OPENAL_SetSFXMasterVolume(int volume);
AL_API signed char OPENAL_StopSound(int channel);
AL_API void OPENAL_Stream_Close(OPENAL_STREAM *stream);