• 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: No mic audio coming in on Leopard
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: No mic audio coming in on Leopard


  • Subject: Re: No mic audio coming in on Leopard
  • From: Jeff Moore <email@hidden>
  • Date: Wed, 24 Sep 2008 13:43:53 -0700

I need more context about what you are doing and what you expect to happen before I can answer your questions. For example, you don't say if it is the case that your IOProc is just not getting called or if it is getting called by the data is all zeros.

It would also be helpful to know something about what AudioDevice you are using.

On Sep 24, 2008, at 1:22 PM, Saad Nader wrote:

I’m new to Leopard development and found issues with capturing data directly from the mic. My application creates an IOProc for the input device to use it for capturing purposes so that I can feed it back to the output device which is the sound system in this case.

So the IOProc for capture has the following signature:
static OSStatus gviHardwareCaptureIOProc(AudioDeviceID inDevice,
const AudioTimeStamp * inNow,
const AudioBufferList * inInputData,
const AudioTimeStamp * inInputTime,
AudioBufferList * outOutputData,
const AudioTimeStamp * inOutputTime,
void * inClientData)


How can I tell if the device is in some kind of error state or why the parameter inInputData does not have any data for me to capture?



--

Jeff Moore
Core Audio
Apple


_______________________________________________ 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: No mic audio coming in on Leopard
      • From: "Saad Nader" <email@hidden>
References: 
 >RE: No mic audio coming in on Leopard (From: "Saad Nader" <email@hidden>)

  • Prev by Date: RE: No mic audio coming in on Leopard
  • Next by Date: Re: Stabilizing AudioQueue
  • Previous by thread: RE: No mic audio coming in on Leopard
  • Next by thread: RE: No mic audio coming in on Leopard
  • Index(es):
    • Date
    • Thread