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good idea to run audio through pci firewire inputs


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#1 Johnny Boy

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Posted 10 December 2009 - 11:25 PM

i built my computer some time ago, and even though its become outdated somewhat, its more than enough to run the programs needed to do some hardcore audio editing. My problem is, the equipment I would like to buy (to make everything work better) transmits the audio to the computer via Firewire. My PC dosent have any firewire inputs. If I buy a pci( or even pci-e 1x) Firewire card, will this slow down the latency of the audio?


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#2 Sneakycyber

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Posted 11 December 2009 - 12:01 AM

It shouldn't slow it down at all.
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#3 Platypus

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Posted 11 December 2009 - 12:52 AM

There are too many unknowns to answer absolutely - depends on what latency you're achieving now with your current audio interface and what latency you end up getting with whichever replacement interface you choose.

But cyber is right to say it shouldn't be any sort of problem as far as the Firewire goes. Standard advice is it's best to get a Firewire card with a genuine Texas Instruments chip if possible, rather than one of the cheaper chips like Agere.

Some good USB 2 audio/MIDI interfaces can actually achieve slightly lower latency figures than a typical Firewire unit. But the difference is small, and in theory the design of the Firewire I/O streaming should mean the latency is consistent, and therefore easy to compensate for if you wish to. USB doesn't have the data streaming priority protocols of Firewire, so in theory could suffer variable latency, which is awkward to compensate for.

Also, for monitoring, an audio interface may provide a zero latency hardware monitor out.
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#4 the_patriot11

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Posted 11 December 2009 - 01:26 AM

I personally dont see a problem. Ive installed firewire cards into older systems with and used digital stuff with no issues.

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