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Re: encoding audio
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Re: encoding audio


  • Subject: Re: encoding audio
  • From: email@hidden
  • Date: Thu, 14 Nov 2002 01:28:02 +0000

Hi Greg,

I also work with MTCoreAudio (and think it's great!). You can use the AudioFile API's for dealing with audio data, although it's not in Obj-C. They seem to be good, and you can use them to save in AIFF, WAVE, and one other type - and perhaps more in the future? Using them may require a rewrite for your implementation. I don't use them for various reasons however.

I'm pretty sure Quicktime does encode data, and you surely can use LAME. Check out these URLs:

http://developer.apple.com/quicktime/
http://developer.apple.com/samplecode/Sample_Code/QuickTime.htm

Hope this helps a bit.

-- John


Hi,

I've written a simple audio recording app in Objective C using Core Audio and Mike Thornburgh's MTCoreAudio framework. At the moment I'm saving raw samples. What options are there for audio compression ? Will Quicktime encode audio, or just decode ? LAME ? I'm not too fussy about file formats at this stage. AIFF, mp3, wav, whatever.

Greg
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References: 
 >encoding audio (From: Greg Hamilton <email@hidden>)

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