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A word on AIF file formats
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A word on AIF file formats


  • Subject: A word on AIF file formats
  • From: Bill Stewart <email@hidden>
  • Date: Thu, 9 Jan 2003 12:20:31 -0800

We've had a few reports of problems using the AudioFile API with the 10.2.3 update. As of this update the AudioFile API has been extensively revised.

The most noticeable change is that AIF files that have floating point data were originally being allowed to be created with the 'AIFF' format. This is actually incorrect, an AIF file with floating point data should be formatted as an 'AIFC' format according to the AIF file specification - this is now how the API behaves. (The same is true for those files that contain little-endian ordered data - like audio CD tracks - these are also 'AIFC' types of files).

We would hope that the different audio apps that are on the market would support AIFC files (at least deal with those that contain PCM data - which is most of them). I've had a number of complaints from people who end up having to copy their audio data, using QuickTime Player to re-export an AIFC file to AIFF so that they can open the data in these apps.

Thanks

Bill

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