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iPod Touch 4G unable to route audio to "Line Out" (iOS 5)
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iPod Touch 4G unable to route audio to "Line Out" (iOS 5)


  • Subject: iPod Touch 4G unable to route audio to "Line Out" (iOS 5)
  • From: Ming <email@hidden>
  • Date: Thu, 12 Apr 2012 15:24:30 +0800

Hi,

We have a problem with iPod Touch 4G unable to route audio output to
"Line Out" on iOS 5 if using Voice Processing I/O Audio Unit. Note
that the problem doesn't happen:
* on iOS 4.x
* if using Remote I/O (however, this is undesirable since we need the
E/C feature)
* on other devices such as iPhone

How to reproduce the problem:
You should be able to see the problem when you connect a iOS 5.0 iPod
to a docking station ... first verify that with Remote I/O audio is
routed to the docking station, then when we use VPIO, the audio will
be routed to the iPod speaker...

So my question is if this is a bug or if there is a change starting
iOS 5. How to solve it?

Thanks,
Ming
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