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Re: Reading audio being sent to output device
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Re: Reading audio being sent to output device


  • Subject: Re: Reading audio being sent to output device
  • From: Jeff Moore <email@hidden>
  • Date: Fri, 5 Jul 2002 12:40:26 -0700

On Friday, July 5, 2002, at 12:06 PM, Paul Haddad wrote:

Is there any way to get an AudioBufferList of the current output, with whatever sounds any other application are playing? I just want enough data to do a simple audio meter, but can't see any way to get it...

There is no way to get this information from the HAL. The driver in the kernel is the only place that has global view on what is going out to the hardware since that's where the mixing of the various clients happens.

Plus, there are DRM issues that need to be resolved around vending out the full mix of the device to just anyone. It's a matter still being reviewed.

--

Jeff Moore
Core Audio
Apple
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References: 
 >Reading audio being sent to output device (From: Paul Haddad <email@hidden>)

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