微軟只是抽掉一部分..
全廢了...
只會看到眾多開發人員革命憤起的局面...
The following changes were made for the Windows Vista version of the DirectSound API to reflect the features of the new audio driver stack:

Software (DSBCAPS_LOCSOFTWARE) buffers support multichannel audio on Windows Vista.

Hardware (DSBCAPS_LOCHARDWARE) buffers always fail to create on Windows Vista.

DSSPEAKER_5POINT1 is now DSSPEAKER_5POINT1_BACK and a new configuration DSSPEAKER_5POINT1_SURROUND was added. For a complete list, see speaker configurations in IDirectSound8::SetSpeakerConfig.