你是不是使用motherboard上內建的soundcard在你的cubase或其他ASIO base的軟體，而發現延遲的時間（latency)很嚴重。 現在可能有一種解決的辦法，就是download一個叫做ASIO 4 ALL(A4A)的dirver，他可以與任何的WDM soundcard相容，不管你是用Windows2000 or XP （98 and ME是不被建議，不過有人試成功過）或者是PCI的soundcard、內建soundchip、PCMCIA card都可以用。會降低latency的時間。 我在我PIII800 laptop的內建的ESS Allegro sound chip上試用，可以將latency從110ms(好爛喔）降到45ms。^^ Click here to download http://www.tippach.net/asio4all HELP u HELP me ^^ Frank C 想知道更多音樂科技的知識嗎？來DTEC坐坐吧！
</font><blockquote>引言:</font><hr /> 我在我PIII800 laptop的內建的ESS Allegro sound chip上試用，可以將latency從110ms(好爛喔）降到45ms。^^ </font>[/QUOTE]除非你所有的樂器一次錄,要不然45ms 是屬於完全不能用的錄音系統。保守至少要12ms以下才是可以接受的。這也是為什麼ProTools TDM 值那個錢。
稍稍補充一下各類"Latency".......... </font><blockquote>引言:</font><hr /> 是不是使用motherboard上內建的soundcard在你的cubase或其他ASIO base的軟體，而發現延遲的時間（latency)很嚴重。</font>[/QUOTE]這種結果包含了3 種latency involved,,,,,,,, # 1 ASIO Latency # 2 Hardware input Latency # 3 Windows MME OS Latency #1 ASIO is a standard for audio device drivers created by Steinberg....... As much as possible, ASIO bypasses the Windows or Mac operating system, creating a more efficient communication between the audio device and the software.......... Different sound cards will have different latencies at different sampling rates........ the "higher" the sampling rate, the "lower" the latency......... Steinberg says that 11 or 12 milliseconds of latency is acceptable........MOTU says MAS is arround 8ms ..... Ideal for me is 3ms,,,theoretically !!!! #2 Hardware input Latency is the latency that occurs in a card's inability to process and digitize audio in, ...... This will result in the actual "recorded audio" being a sample or possibly much more later than the incoming audio.,,, This issue will compound itself if the next recorded track is created while referencing to the earlier track....In another words,.......the first track will be 'N' number of samples late,...and the second track will be "N" + "Y" samples late.... #3 Windows Latency issue involves a device that uses Windows drivers, also referred to as "MME"... (multi-media extensions)....... Windows latency can be as high as bloody 50 or 75 ms.... Normally...A program like Steinberg's Cubase will have an "ASIO MME" emulation mode........, as well as ASIO DirectX. These would be the best bet if using an ASIO compliant program and an audio card that does not provide ASIO drivers........... 一般人大概都能感覺13 ,14 ms 的延遲.......45ms 算很難real time 工作了....一般專業級多半會須要11 ms 以下 ,,,or a buffer size < 512 samples !!!!......... 歡迎常來當代.....這裡音樂科技也蠻多的!!!!
Yeah 45 ms is kinda hard to work with, but better than nothing. That's only an example for sucky build-in sound chip, if u have better hardware, u will get better result. 只是給那些想要在有限的經費，只能用build-in sound card的人一個better work around選擇。 Frank C 想知道更多音樂科技的知識嗎？來DTEC坐坐吧！ 當代當然也可以^^
嗯?? 可是自從上次我把ASIO Driver選成"ASIO DirectX Full Duplex"之後...兩個音軌會延遲的現象好像就不見了耶.... 那我還需不需要安裝這軟體啊?? 疑惑中... 我到底修改了什麼??
Crybaby, </font><blockquote>引言:</font><hr /> 上次我把ASIO Driver選成"ASIO DirectX Full Duplex"之後...兩個音軌會延遲的現象好像就不見了耶 </font>[/QUOTE]ASIO DirectX Full Duplex 是只提供2 in 2 out的ASIO driver,,,,算蠻舊的版本了,,,,,不過如果只須2in/2out,,,, 那就不必換了,,, ASIO 和聲卡＆OS的配對,,講的是"門當戶對"也未必要一直更新,,,舊聲卡&新driver or 新聲卡&舊driver,,,,都可能在條件匹配上不同而表現沒進步........ 但Latency 是電腦錄音永遠無法消滅的惡夢...不論AD or DA 的過程...
嗯恩 我的聲卡是內建的..好像只有一個可以line的地方.. 照你說的, 那是不是說將來如果有機會要換好一點的聲卡..in/out的孔數多了就得再去"另尋新辦法"?? ASIO DirectX Full Duplex 是舊版本喔... 那可以升級嗎?? 為什麼我選這個錄的時候就聽不太出latency的現象? 我在原理上做了什麼修改嗎? 嗯 希望我這些問題的sense有問對.. 對了, 如果像我這樣子的設備的話 一把琴,POD直接進電腦用Cubase錄 現金不超過一萬的話有什麼比較好的升級方法呢?? 謝謝^^