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Re: Re: NSTimer question: How to fire at second 00, 05, 10 etc ?
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Re: Re: NSTimer question: How to fire at second 00, 05, 10 etc ?


  • Subject: Re: Re: NSTimer question: How to fire at second 00, 05, 10 etc ?
  • From: "Shawn Erickson" <email@hidden>
  • Date: Wed, 25 Oct 2006 13:03:03 -0700

On 10/25/06, Gilles Celli <email@hidden> wrote:
 >What kind of accuracy are you looking for?

Well Real-Time (but I think it's not possible on Mac OS X) or Soft-
RealTime (like SRT on Linux).

Mac OS X has support for such things (THREAD_TIME_CONSTRAINT_POLICY) and the Mac OS X schedular can provide one of the more consistent low latency scheduling available on any desktop grade operating system that exist today. For example it is one of the reason the Core Audio can provide audio processing that you can use in a live (on stage) situations.

With that said do you really need to go to this level of things? What
is the sampling frequency of the capture device you are interfacing
with?

-Shawn
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  • Follow-Ups:
    • Re: NSTimer question: How to fire at second 00, 05, 10 etc ?
      • From: Gilles Celli <email@hidden>
    • Re: NSTimer question: How to fire at second 00, 05, 10 etc ?
      • From: Jeff Koftinoff <email@hidden>
References: 
 >NSTableView with NSArray and C-array question (From: Gilles Celli <email@hidden>)
 >Re: NSTableView with NSArray and C-array question (From: Gilles Celli <email@hidden>)
 >Re: NSTableView with NSArray and C-array question (From: Glenn Zelniker <email@hidden>)
 >Re: NSTableView with NSArray and C-array question (From: Gilles Celli <email@hidden>)
 >Re: NSTableView with NSArray and C-array question (From: Glenn Zelniker <email@hidden>)
 >Re: NSTableView with NSArray and C-array question (From: Gilles Celli <email@hidden>)
 >Re: NSTableView with NSArray and C-array question (From: "R. Matthew Emerson" <email@hidden>)
 >NSTimer question: How to fire at second 00, 05, 10 etc ? (From: Gilles Celli <email@hidden>)
 >Re: NSTimer question: How to fire at second 00, 05, 10 etc ? (From: "Shawn Erickson" <email@hidden>)
 >Re: NSTimer question: How to fire at second 00, 05, 10 etc ? (From: Gilles Celli <email@hidden>)

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