[ Solved ] Apple Core Audio AAC

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e-muzik
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[ Solved ] Apple Core Audio AAC

Post by e-muzik » Sat Sep 16, 2017 9:17 pm

Apple Core Audio AAC does not work with iTunes is not downloaded to the iPhone 7.

AAC - not work
M4A - not work
M4B - not work

Windows Pro 10 x64

*link for the m4a sample files removed*
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b4b5d442e45774d292991ea94ff76ce4.png (76.41 KiB) Viewed 438 times

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poiko
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Re: Apple Core Audio AAC

Post by poiko » Sun Sep 17, 2017 8:45 am

I converted files to .m4a /AAC with both Apple and FhG FDK encoder.

Files play and show bitrate in iTunes and AIMP.

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Re: Apple Core Audio AAC

Post by poiko » Sun Sep 17, 2017 8:55 am

I downloaded your file and it plays in iTunes, shows bitrate in iTunes, but shows 0 kbps in AIMP.

I will investigate it more.

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Re: Apple Core Audio AAC

Post by poiko » Sun Sep 17, 2017 2:20 pm

Investigated your file.

Absolutely nothing wrong with the file.

It's a 64-bit M4A file. You have enabled 64-bit M4A file format in EZ CD Audio Converter settings:

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Untitled-1.png (22.85 KiB) Viewed 457 times

Obviously AIMP does not detect bitrate of 64-bit M4A files correctly.

iTunes handles the 64-bit M4A file fine. I am not sure about the iPhone, I did not test. Android works fine.

Solution for you: Switch to 32-bit M4A file (can handle file size up to 4GB).

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