請教關於Sound Blaster Audigy 2 的AC-3解碼能力
 

哈嚕.....請教各位大大,之前的 SB Live 5.1 經過收集資料發現其實在AC-3 5.1上面還是以 軟體解碼 的.........:cry:
那至於 Sound Blaster Audigy 2 呢?.....它是屬於硬體解碼還是依然軟體解碼呢?
在這先感謝高手指教了!~:)

這也是我關心的問題之一,畢竟現在身陷音效卡,解碼擴大機和喇叭間的抉擇,到底哪一個可以提供最明顯的音效上改善,如果Audigy 2 以提供硬體解碼那解碼擴大機大可先省掉.
另外不知道Audigy 2 支援 SPDIF輸入,輸出嗎?

The Audigy2 features a renovated CA0102-IAT digital signal processor (DSP). The manufacturer doesn't tell its processing power. But considering that the E-MU10K1 provided 1000 MIPS (million instructions per second) and the first Audigy was four times more powerful, the processing power of the Audigy2 must be about equal to that of its predecessor. Is it much or little? For a better comparison: the Aureal AU8830 had 600 MIPS of processing power. The Cirrus Logic CS4630-CM processor that is used in Sonic Fury cards is 420 MIPS. We guess there was no need to invent a new processor for the new sound card, as the old one had a huge reserve left. Moreover, we didn't see hardware Dolby Digital and DTS audio streams processing. The Audigy2 can't process Dolby Digital streams in real time, as, for example, NVIDIA SoundStorm, but it can correctly output pre-encoded Dolby Digital 5.1/6.1 content. So, we have to admit that SoundStorm audio processor from NVIDIA outran Audigy2 in this respect, but maybe we will see some new things in the Audigy3? Maybe?

根據這篇文章片段看來..Audigy 2 仍然不是硬體解碼...

當然可以,連Dolby Digital Surround EX 6.1 都能解了,至於 tommyc 前輩提出的文章,應該是指nForce 能作即時Dolby Digital 編碼輸出吧.

注意看這一段...
Moreover, we didn't see hardware Dolby Digital and DTS audio streams processing. The Audigy2 can't process Dolby Digital streams in real time, as, for example, NVIDIA SoundStorm, but it can correctly output pre-encoded Dolby Digital 5.1/6.1 content.

他提到看不到任何硬體解碼的部份...audigy2不能real-time解碼表示還是需要搭配driver(軟體)去解....

至於Dolby Digital Surround EX 6.1也可解..不一定是用硬體解碼完成的...WinDVD或PowerDVD也可以解出DD.. DTS...etc..