感謝提供LINK
我想這個問題應該可以結案了
微軟在WIN8還是提供音效硬解
軟解硬解由應用開發商決定
(知名的PC Game應該是兩套模式都會支援,一般的影音播放軟體應該就只支援軟解)
而對消費者來說, 以下結論應該是我們所期望的

We may, however, benefit since it is possible any new reverb techniques will likely work on integrated audio as well as dedicated cards in accelerated mode.

看來石頭旗艦級主機板上那些音效處理規格會慢慢變成雞肋規格~