Re: ultra low latency AD interface for visualization purposes
Re: ultra low latency AD interface for visualization purposes
- Subject: Re: ultra low latency AD interface for visualization purposes
- From: Jeff Moore <email@hidden>
- Date: Mon, 06 Apr 2009 11:30:51 -0700
In general, PCI devices have the potential to have less latency than
FireWire devices since the PCI bus generally has less overhead
involved. But that's just a general rule. I'll leave it to others to
provide more specific recommendations for you.
On Apr 6, 2009, at 3:59 AM, Heinrich Fink wrote:
I am currently doing research in the field of realtime audio feature
extraction for visualization purposes. Basically I am building an
AudioGraph and using AudioUnits to analyze the stream and feed a
graphics layer (similar to the SonogramDemo). Of course you would
want the lowest latency possible during the whole process.
Now, to test my results in a real-world scenario, I'd need a
reliable multi-channel audio interface that offers stable core audio
drivers and very low latency AD-conversion (preferably with pre-
amps). I am neither asking for a buyer's guide, nor I want to start
a discussion on anybody's favourite interface, but I would
appreciate any recommendations for this kind of use case.
So I guess it boils down to these two questions:
Which interfaces are known for a very low latency for Analog ->
Digital -> AudioUnit Host flow?
Will a firewire interface be fast enough to convert 8 simultaneous
input streams and feed the AudioUnits in realtime or would you
rather recommend a PCI-solution like Apogee's Symphony?
thanks, and my apologies if this is off-topic on this list.
--
Jeff Moore
Core Audio
Apple
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