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CAAudioFile writing on Panther
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CAAudioFile writing on Panther


  • Subject: CAAudioFile writing on Panther
  • From: Craig Hopson <email@hidden>
  • Date: Fri, 8 Sep 2006 14:00:12 -0600

Hi,

We have an application that runs on Tiger & Panther (10.3.9).
It is compiled:
SDKROOT = /Developer/SDKs/MacOSX10.4u.sdk
MACOSX_DEPLOYMENT_TARGET = 10.3
It seems to work well in both environments but for one thing - writing a file. We use the CAAudioFile wrapper. This is a pure export - that is, we are not playing while writing. On a 500 MHz Ti Powerbook running Tiger, export is fine. However, on a 2 GHz dual G5 running Panther the export doesn't work - we get drop outs, buzzing, etc. Audio playback within the application is fine on all hardware/ OS combinations that we have tested. And, other than pulling for the audio buffers ourselves (rather than the default output AU) and calling CAAudioFile::Write() there are no differences between the export and playback code.


Is Tiger really this much better?
Are we missing something?



Craig Hopson
Red Rock Software

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