• Open Menu Close Menu
  • Apple
  • Shopping Bag
  • Apple
  • Mac
  • iPad
  • iPhone
  • Watch
  • TV
  • Music
  • Support
  • Search apple.com
  • Shopping Bag

Lists

Open Menu Close Menu
  • Terms and Conditions
  • Lists hosted on this site
  • Email the Postmaster
  • Tips for posting to public mailing lists
Re: 64bit processing possible?
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: 64bit processing possible?


  • Subject: Re: 64bit processing possible?
  • From: "Ross Bencina" <email@hidden>
  • Date: Thu, 30 Jul 2009 15:48:34 +1000

Evan Olcott wrote:
Coming from the host-development side (which we do with a small handful of our products, Rax in particular), I can tell you that we HAVE tried this and researched it, and our roadblock in the end is the AUHAL drivers.

If you really care about high-quality output I'm surprised that you are leaving float->int conversion to AUHAL or the audio drivers. Nothing against AUHAL, just that trusting the OS to do this doesn't seem like the right approach if you care about a well defined audio pathway.


I would do the ffloat -> int conversion in the host and use a hardware supported bit depth at the interface to AUHAL. That way you have full control over dithering algorithms etc.

Ross.


_______________________________________________ Do not post admin requests to the list. They will be ignored. Coreaudio-api mailing list (email@hidden) Help/Unsubscribe/Update your Subscription: This email sent to email@hidden
  • Follow-Ups:
    • Re: 64bit processing possible?
      • From: Arne Scheffler <email@hidden>
References: 
 >Re: 64bit processing possible? (From: Evan Olcott <email@hidden>)

  • Prev by Date: Re: 64bit processing possible?
  • Next by Date: AUConverters set up
  • Previous by thread: Re: 64bit processing possible?
  • Next by thread: Re: 64bit processing possible?
  • Index(es):
    • Date
    • Thread