Sorry to risk being a list spammer, but I originally sent this on 29 Dec and haven't seen any replies. Given the number of people who use audio recording I'd be surprised if no one else has encountered these questions themselves. Thanks in advance if you have any answers:

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Three questions about recording audio:

> 1. Support for new compressors?
The recordCompressorTypes property returns a list of available compressors that includes items (like MPEG-4) which are not shown in the "answer record" dialog.


Since the "answer record" command calls QT to bring up its dialog, why aren't all of the available compressors shown?


> 2. How to determine format/compressor compatibility? The docs say: Not all sound file formats are compatible with all supported codecs. If you try to record sound using a recordCompressionType that is not compatible with the recordFormat, the compression type will be changed automatically to a codec that is compatible with the specified recordFormat.

How can I determine which compressors are available for which formats?


> 3. Updating options in the "answer record" dialog
If I change the recordFormat and then call "answer record", it always displays the same list of codecs.


Is there a way to have the "answer record" dialog only show options relevant for the current recordFormat?


TIA-

--
 Richard Gaskin
 Fourth World Media Corporation
 __________________________________________________
 Rev tools and more: http://www.fourthworld.com/rev

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