AAC files can be converted to MP3 on a Macintosh computer using iTunes. AAC stands for Advanced Audio Coding. This type of file encoding is used in several file types, including .m4a, .mp4, and .aac. It is the standardized audio coding method for the iPod, iPad and iPhone. AAC files are considered to be a technical successor to the MPEG-1 Audio Layer 3 format, which is widely known by the abbreviation MP3. Because AAC supports many more audio channels and a much higher sample frequency, it delivers better audio quality.
iTunes: An Overview
ITunes software is standard on all Macintosh computers. If for some reason your computer does not have this software, it is available via free download at the iTunes website. If you're not using the most updated version of iTunes, a window will appear prompting you to update the software. It is advisable that you complete this download and use the most current version of iTunes.
Locating the AAC File on Your Macintosh
If you have downloaded an ACC file from an email, check your computer's Download file. It is advisable that you move the file from its location to the desktop, so it is easily accessible. This is done by clicking on the file at its current location and dragging it to the desktop. Any number of ACC files can be converted to MP3 on your Macintosh.
AAC Files and iTunes
AAC files that you wish to convert to MP3 should be moved to your iTunes Library. This is done by opening iTunes and clicking "Library." Once the library is open, drag the files you wish to covert into the library. Once they are dragged into the library, you will see the files information, including Name, Artist and Album. Keep in mind that files purchased at the iTunes store are AAC files and will already be present in your library. The file extension for files purchased from iTunes is .m4a.
Using iTunes to Convert AAC Files to MP3
From the iTunes library, hover the mouse over the file you wish to convert until a list of options appears. From this list, select "Create MP3 Version." This can also be done by selecting the file, clicking the "Advanced" menu at the top of the iTunes window and selecting "Create MP3 Version." After this option is selected, your computer will create an MP3 file. You can then move the MP3 back to your desktop and upload it to emails.
Music Copyright Laws
When working AAC files, MP3 files and digital audio files of any kind, it is important to be mindful of music copyright laws. ITunes, other websites and blogs offer a wide range of podcasts and audio files that can be legally downloaded and transferred by users. This is often done through Creative Commons, which allows content creators to waive some content rights. However, it remains illegal to distribute copyrighted material to other computer users via email or CD, even if you purchased the content in question. Converting file formats for your own personal use is not illegal, but it is illegal to distribute copyrighted material in any form.
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