視訊擷取卡 挑選 - 3C

By Ula
at 2014-04-23T11:40
at 2014-04-23T11:40
Table of Contents
如題
最近想買張擷取卡
不過不知道要裝在哪一台電腦上
以及要怎麼挑選
1.有看到2K、3K,甚至上萬的擷取卡
裡面有些提到H.264,有其必要性嗎?
這價差讓人有點不太清楚該買到哪個等級的
如果要求1080p推薦哪一牌的?
2.擷取卡只能負責轉介外來視訊嗎?
還是說裝了之後也可以不接線直接擷取"該電腦"的畫面?
3.承2,如果可以擷取該電腦的畫面
因為之前聽說壓縮完全靠擷取卡進行了,幾乎不吃CPU
那麼假設要將A電腦的畫面使用B電腦外傳
需要把擷取卡裝到B電腦嗎?
還是直接裝到A電腦去然後實況就好?沒必要用到B電腦?
4.承2,如果不能擷取該電腦的畫面
那麼如果要將A電腦的畫面使用B電腦外傳
就要搭配HDMI分流器了吧?
也就是同時顯示兩台螢幕的哪種,只是其中一條輸出到B電腦的擷取卡
這樣才能同時顯示?對擷取卡的效能會有影響嗎?
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