[wdmaudiodev] Re: Discovery of Analog Audio Device

  • From: tekHedd <tekhedd@xxxxxxxxxxxxxx>
  • To: wdmaudiodev@xxxxxxxxxxxxx
  • Date: Tue, 06 Nov 2007 12:22:47 -0700

Hakon Strande wrote:
> Some vendors use Impedance Sensing to guess the nature of the analog
>  peripheral connected as impedances are different from Microphones to
>  headphones to speakers to line level devices. It is hardly an exact 
> science but the results are surprisingly accurate when those who 
> implemented it knew what they were doing...

I simply can't describe the frustration when they guess wrong, and give
you no way to override it. I'm not naming names here. :)

tom
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