• 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
Still Seeking Advice: Registering a "fake" Audio Device
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Still Seeking Advice: Registering a "fake" Audio Device


  • Subject: Still Seeking Advice: Registering a "fake" Audio Device
  • From: Mark Coniglio <email@hidden>
  • Date: Fri, 8 Jul 2005 07:28:54 -0400

Is it possible to register a 'fake" HAL audio device within my code, so that I can route the QT Movie Sound data to that device.

In my application Isadora, I would like to be able to manipulate the location of a QuickTime movie's sound on a multi-channel sound output device connected to multiple (i.e., more than 2) speakers.

My previous method was to register a several Sound Output Components for a specific HAL device, one SOC per each two channels on the HAL device. But Sound Output Components are no longer used in QT7 -- so that method is broken now.

Because you can assign a QT Movie to play on a specific audio device, one idea that occurs to me is to create a "fake" HAL audio device for each pair of channels, which would in turn feed the sound data to the appropriate channels on the real HAL device. Then I could assign the Audio Context for the movie to the fake HAL, which would in turn route it to correct pair of channels on the real device.

Is this possible?

Many Thanks,
Mark

--
=====================================================================
Mark Coniglio, Artistic Co-Director | email@hidden
Troika Ranch Dance Theater          | http://www.troikaranch.org
=====================================================================
_______________________________________________
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: Still Seeking Advice: Registering a "fake" Audio Device
      • From: Dan Nigrin <email@hidden>
  • Prev by Date: Re: java coremidi property advice needed
  • Next by Date: Re: Still Seeking Advice: Registering a "fake" Audio Device
  • Previous by thread: Re: Getting exact playout time of audio buffers in GarageBand
  • Next by thread: Re: Still Seeking Advice: Registering a "fake" Audio Device
  • Index(es):
    • Date
    • Thread