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New iTunes, new CoreAudioToolbox.dll, iTunes 10.7.0.21, CoreAudioToolbox.dll 7.9.8.1
eahm
post Sep 20 2012, 03:32
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Mix3dmessagez, did you by chance read the first post? I've reconverted ~1400 songs, albums don't necessarily get smaller, some get bigger. For sure it's better, Apple likes to improve its components. Let's move on more technical details/issues.

This post has been edited by eahm: Sep 20 2012, 03:57
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Mix3dmessagez
post Sep 20 2012, 04:18
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QUOTE (eahm @ Sep 19 2012, 22:32) *
Mix3dmessagez, did you by chance read the first post? I've reconverted ~1400 songs, albums don't necessarily get smaller, some get bigger. For sure it's better, Apple likes to improve its components. Let's move on more technical details/issues.


Yes I have, I was just reporting from my personal findings quicktime itself has been effected by the coreaudio update, and not just the encoder in itunes.
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Anakunda
post Sep 20 2012, 07:48
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So. Can anybody blind listening any differences between older and current CoreAudio or is the bitrate decrease only result of compression optimization?
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eahm
post Sep 20 2012, 17:25
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QUOTE (Anakunda @ Sep 19 2012, 23:48) *
So. Can anybody blind listening any differences between older and current CoreAudio or is the bitrate decrease only result of compression optimization?

http://www.hydrogenaudio.org/forums/index....st&p=808650

http://www.hydrogenaudio.org/forums/index....st&p=808666
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nu774
post Oct 30 2012, 04:46
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I noticed two major differences so far:
  • 3ch(C+L+R) AAC encoding is supported on 7.9.8.1. It already works with qaac without modification on qaac side.
  • ExtAudioFileRead() crashes when decoding HE-AACv2 on 7.9.8.1 (this has nothing to do with qaac, though).
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eahm
post Oct 30 2012, 05:34
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Thanks for the info.

Can Apple (or even qaac) convert to HEv2? Is it possible with a specific command line or it's automatic below certain bitrates?

This post has been edited by eahm: Oct 30 2012, 06:16
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nu774
post Oct 30 2012, 07:08
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If it is available, you can probably use "afconvert -d aacp" or something in Mac OS X. I don't have Mac or iOS devices, so I'm not familiar with Apple products at all.
As for qaac, NO (same as iTunes for Windows).
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eahm
post Feb 20 2013, 18:04
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New iTunes 11.0.2.25. CoreAudioToolbox.dll is the same.
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zqae
post Apr 20 2013, 11:24
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The file CoreAudioToolbox.dll is different between QuickTime & iTunes, though version is the same? unsure.gif

iTunes:

File: C:\Program Files (x86)\Common Files\Apple\Apple Application Support\CoreAudioToolbox.dll
Size: 4986768 bytes
File Version: 7.9.8.2
Modified: Monday, January 28, 2013, 13:08:16
MD5: D420904DDF2619DA2A96371B0D4670C9
SHA1: 686334C8CC26B0C79FFBE361455EC2E5841BD4C2
CRC32: BF71EFDD

QuickTime:

File: C:\Program Files (x86)\foobar2000\QTfiles\CoreAudioToolbox.dll
Size: 4986768 bytes
File Version: 7.9.8.2
Modified: Thursday, October 11, 2012, 21:56:10
MD5: 8A73BCF073DA081C47C98F16E9805855
SHA1: F40BB960AC8124E191E688E46BF07DBDEADA5D02
CRC32: E4583F09
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Anakunda
post Apr 20 2013, 14:20
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QUOTE (zqae @ Apr 20 2013, 12:24) *
The file CoreAudioToolbox.dll is different between QuickTime & iTunes, though version is the same? unsure.gif

iTunes:

File: C:\Program Files (x86)\Common Files\Apple\Apple Application Support\CoreAudioToolbox.dll
Size: 4986768 bytes
File Version: 7.9.8.2
Modified: Monday, January 28, 2013, 13:08:16
MD5: D420904DDF2619DA2A96371B0D4670C9
SHA1: 686334C8CC26B0C79FFBE361455EC2E5841BD4C2
CRC32: BF71EFDD

QuickTime:

File: C:\Program Files (x86)\foobar2000\QTfiles\CoreAudioToolbox.dll
Size: 4986768 bytes
File Version: 7.9.8.2
Modified: Thursday, October 11, 2012, 21:56:10
MD5: 8A73BCF073DA081C47C98F16E9805855
SHA1: F40BB960AC8124E191E688E46BF07DBDEADA5D02
CRC32: E4583F09


This is only different timestam making the diiff cool.gif
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