Re: Apple Loops Utility Question
Re: Apple Loops Utility Question
- Subject: Re: Apple Loops Utility Question
- From: Patrick Cusack <email@hidden>
- Date: Thu, 15 Jan 2009 11:20:22 -0800
Valid point. However, The Apple Loops Utility doesn't edit the audio
per se. The old version of the utility didn't exhibit this behavior.
I would hope that some one from Apple could chime in on this.
Patrick
p.s. what kind of consulting do you do?
On Jan 15, 2009, at 11:15 AM, Brian Willoughby wrote:
The AIFF spec states that programs should preserve chunks unless
the audio data is edited. If the audio data is edited, then there's
no way for a program to know whether the chunks are still valid for
the new audio data, and thus the spec recommends that they be
dropped. I don't know what operations you're running with the
Apple Loops utility, but it could be perfectly legal and
recommended to delete unknown chunks.
Too bad the AIFF spec doesn't have any way to distinguish chunks
that are tied to the audio samples versus chunks which would always
be valid even if the samples are modified.
Brian Willoughby
Sound Consulting
On Jan 15, 2009, at 11:07, Patrick Cusack wrote:
Here is another thing I noticed about the 2.0.1 Apple Loops
utility. It deletes all other AIFF chunks that it finds. I put in a
file that had 3 user defined chunks, and the new utility deleted
them all. Now the AIFF spec states that programs should preserve
chunks whether or not the program need/uses them. Why does the
Apple Loops Utility do this? I found v2.0.1 apart from the SDK. It
was in the Logic Studio Installer. Is 2.0.1 canonical?
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