Re: Questions regarding output from afinfo
Re: Questions regarding output from afinfo
- Subject: Re: Questions regarding output from afinfo
- From: William Stewart <email@hidden>
- Date: Thu, 6 Aug 2009 13:38:37 -0700
On Aug 6, 2009, at 12:27 PM, Andrew E. Davidson wrote:
Hi Bill
I must be looking in the wrong place. I can not find much
documentation about ALAC
Apple Lossless Audio Codec
- Can I use ALAC to compress PCM on iPhones?
yes
- What will the file extension be?
its a data format, not a file format. ALAC can be put into m4a files
(you can rip to ALAC in iTunes), or CAF files. You can create either
of these file formats on the phone and put ALAC data in them
- can most iPod devices and windows computers play this
format? Do they need quick time?
yes - except for shuffles I think. Windows would need quicktime and
they can only be played back with iTunes, QT Player or other apps
that use QT.
Bill
- The mFormatId field of the AudioStreamBasicDescription
defines kAudioFormatAppleLossless. What is the equivalent value to
use in inFileType argument in ExtAudioFileCreateWithURL() ?
Thanks
Andy
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