eAAC and eAAC+ codecs | iLounge Article

Article

eAAC and eAAC+ codecs

Author's pic

By Jerrod H.

Contributing Editor
Published: Thursday, August 17, 2006
Articles Categories: Ask iLounge, Music

Ask iLounge offers readers the opportunity to get answers to their iPod-, iPhone-, iPad-, iTunes-, or Apple TV-related questions from a member of the iLounge editorial team. We'll answer several questions here each week, and of course, you can always get help with more immediate concerns from the iLounge Discussion Forums. Submit your questions for consideration using our Ask iLounge Submit Form. We reserve the right to edit questions for grammar, spelling, and length.

View the complete Ask iLounge archives...

Q: I am seeing a lot of references to eAAC and eAAC+ in cell phone test reviews, notably for Sony Ericsson phones. I use AAC for my iPod, but I’m interested in these other formats. Can you elaborate on what eAAC and eAAC+ actually are? Does my iPod or iTunes support them?

- George

A: The eAAC and eAAC+ codecs are evolutions of the current AAC codec, allowing for even smaller files at excellent sound quality levels. They achieve this in part by the use of a technology called “Parametric Stereo”, which combines the left and right channels of audio for greater compression, but in a special way that allows the stereo separation to be restored for playback.

You’re right - at this point, the codec has currently only appealed to cell phone manufacturers and over-the-air music stores, as their needs for low-bitrate music are clearly more urgent than manufacturers of large-capacity hard drive players.

Years ago, there were rumors of Apple’s plans to incorporate the codec into the iTunes/iPod/Quicktime/Music Store system, but this still hasn’t materialized.

Still, more efficient codecs are a natural progression of audio technology, and especially with Apple’s rumored entry into the cell phone market with its “iPhone,” updated AAC technology may find its way to iTunes in the near future.

The most asked question at iLounge.com:

How do I copy content from my iPod/iPhone onto my computer?

Converting DVDs, web video, TV shows and more:

The Complete Guide to iPod, Apple TV and iPhone Video Formats

Converting DVDs, web video, TV shows and more:

The Complete Guide to iPod, iPhone and Apple TV Video Conversion (Mac)

Converting DVDs, web video, TV shows and more:

The Complete Guide to iPod, iPhone and Apple TV Video Conversion (Win)

Best Speakers?

Best Headphones?

Best Case?

Best In-Car Solution?

Best Battery Extender?

Find more answers in the latest publications in our Library. Free downloads developed by the editors of iLounge!

Ask iLounge Archives:

1-24-14: Viewing only downloaded iTunes Match tracks

1-22-14: Splitting purchased content between two iPads

12-13-13: Non-Bluetooth Lightning dock speakers

12-11-13: Shared Apple ID and switching away from iPhone

12-6-13: Syncing multiple iCloud data with a family Mac

Read more recent Ask iLounge articles...

View the complete Ask iLounge archives...

« Creating random batches of songs with smart playlists

Tags disappearing on play »

Related Stories

Comments

If you have a comment, news tip, advertising inquiry, or coverage request, a question about iPods/iPhones/iPad or accessories, or if you sell or market iPod/iPhone/iPad products or services, read iLounge's Comments + Questions policies before posting, and fully identify yourself if you do. We will delete comments containing advertising, astroturfing, trolling, personal attacks, offensive language, or other objectionable content, then ban and/or publicly identify violators.

Commenting is not available in this section entry.

Email:

Recent News

Recent Reviews

Recent Articles

Shop for Accessories: Cases, speakers, chargers, etc.