• 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: SimplePlayThru moved?
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: SimplePlayThru moved?


  • Subject: Re: SimplePlayThru moved?
  • From: Chris Adamson <email@hidden>
  • Date: Thu, 29 Jul 2010 11:41:14 -0400

To clarify why I'm looking to make the distinction between using a CAPlayThrough (which uses two units [either two AUHALs or an AUHAL for input and DefaultOutput for output… the description in the CA Overview doesn't match the sample's README]), versus SimplePlayThru (which apparently uses a single AUHAL)…

I've done most of my Core Audio work on iOS, where I've used a single RemoteIO unit for both input and output. It's pretty trivial to do pass-through by enabling input-scope/bus1 and output-scope/bus0, and then connecting output-scope/bus1 to input-scope/bus0.

I was trying to do the same thing in OS X this morning by setting up an AUHAL unit with the default input device, but I find I can't set the device on the unit (kAudioUnitErr_InvalidPropertyValue) unless I disable output on the unit.  Which makes me think I must use two units on OS X, one for input and one for output, as CAPlayThrough does.  If SimplePlayThru uses a single unit for input and output, that seems more like the iOS case.  And that would make me happy.

--Chris

 _______________________________________________
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: SimplePlayThru moved?
      • From: Doug Wyatt <email@hidden>
References: 
 >SimplePlayThru moved? (From: Chris Adamson <email@hidden>)

  • Prev by Date: SimplePlayThru moved?
  • Next by Date: Re: SimplePlayThru moved?
  • Previous by thread: SimplePlayThru moved?
  • Next by thread: Re: SimplePlayThru moved?
  • Index(es):
    • Date
    • Thread