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
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