http://bugs.winehq.org/show_bug.cgi?id=14717
--- Comment #171 from Raymond superquad.vortex2@gmail.com 2011-10-09 05:54:09 CDT --- If AudioClient_GetMixFormat() return a format (float) which does not support by dmix which use S32_LE or S16_LE , it need to use more CPU power when playing S16_LE
aplay -Ddmix:Intel any.wav Playing WAVE 'any.wav' : Signed 16 bit Little Endian, Rate 48000 Hz, Stereo aplay: set_params:1073: Sample format non available Available formats: - S32_LE