extern "C" void PlaySoundEx(int channel, OPENAL_SAMPLE *sptr, OPENAL_DSPUNIT *dsp, signed char startpaused);
extern "C" void PlayStreamEx(int chan, OPENAL_STREAM *sptr, OPENAL_DSPUNIT *dsp, signed char startpaused);
extern "C" void PlaySoundEx(int channel, OPENAL_SAMPLE *sptr, OPENAL_DSPUNIT *dsp, signed char startpaused);
extern "C" void PlayStreamEx(int chan, OPENAL_STREAM *sptr, OPENAL_DSPUNIT *dsp, signed char startpaused);