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Re: Recording compressed audio file

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Re: Recording compressed audio file

Subject: Re: Recording compressed audio file
From: Jens Alfke <email@hidden>
Date: Fri, 6 Mar 2009 15:18:29 -0800

On Mar 5, 2009, at 9:58 PM, rethish wrote:

We can record using Linear PCM , appleIMA4 and applelossless formats .
We also need to record in AAC format.
In the documentation We found that MPEG-4 Audio Object Type Constants are deprecated in MAC OS X 10.5

I don't know what those constants are, but the relevant ones for encoding audio into AAC are

kAudioFileM4AType

kAudioFormatMPEG4AAC

(Yes, you need both: one to specify the file type, the other to specify the data format.)

These are declared in the very same header file as the types you quoted in your email (kAudioFormatLinearPCM, etc.)

—Jens

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	>Re: Recording compressed audio file (From: rethish <email@hidden>)

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