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I've been playing around with the skeleton app that comes with the rreMicrophone external, with a view to using the external in my own app.
The audio format defaults to Linear PCM and the output file has a .aud extension (which the iPad does not recognise). I can change the extension to .aiff after the file has been produced and it will play OK, but it does not work if I change the extension in the script.

What I want to do is produce recordings in aac format, and it works OK if I change the output file extension (in the Start button script) to aac, and also manually select AAC from the pull down menu in the app. I want to change the audio format via script, but if I put the command rreMicrophoneSetAudioFormat 2 in the preOpenCard script it is ignored. I have tried "2" for the parameter but it makes no difference.

I'd appreciate advice on what I need to do.

TIA
Don

OK, I resolved the problem by using the following:

put "MP4-AAC" into tFormat
rreMicrophoneSetAudioFormat tFormat

For some reason the parameter has to be in a variable because neither MP4-AAC nor "MP4-AAC" works.

Originally I was using the number (2) corresponding to the value for MP4-AAC shown in the C Code. But not being a C programmer I obviously misconstrued that.

Cheers
Don