AAC explained
Posted by Gavin Brockis on Tuesday 16 February 2010 at 8:00am
Tags:
compression |
file formats |
metadata |
news |
standards
A new advice document covering Advanced Audio Coding (AAC), an audio compression method designed to replace MP3.
AAC improves on the file compression technology behind MP3 and marries it with the flexible MPEG-4 standard to deliver audio in a package designed to offer users the widest range of delivery and playback tools.
Our new advice document AAC Audio and the MP4 Media Format explains the benefits of using AAC in teaching and learning, and how AAC relates to video and other enhanced learning resources. We also look at compatibility and the software which you or your users need to work with AAC audio, and some of the features it can offer.
The MPEG-4 standard, of which AAC is a part, is a large and potentially confusing collection of standards and formats, so we try also to cherry-pick some of the most salient features to enable those working with AAC audio in MP4 or M4A format to understand the place of AAC in the wider MPEG-4 family.
Comments (1)
Commenting is not available in this section entry.
<< Previous entry: HTML 5 video player
>> Next entry: JISC RSC SW Conference
Blog archive
- September 2010
- August 2010
- July 2010
- June 2010
- May 2010
- April 2010
- March 2010
- February 2010
- January 2010
- December 2009
- November 2009
- October 2009
- September 2009
- August 2009
- July 2009
- June 2009
- May 2009
- April 2009
- March 2009
- February 2009
- January 2009
- December 2008
- November 2008
- October 2008
- September 2008
Comment posted by pete whitfield on 16 February 2010 at 9:53am
This is such a great resource. I knew mp4 was (1) better than mp3 but now I know why! It will be one hell of a challenge to persuade web users and services to move from mp3 to mp4 as a standard audio format. I guess the first move will need to come from host services like wordpress, who will need to make embedding mp4 audio the norm. I don’t think it is currently possible on a wordpress.com site.
And perhaps the trigger for change will not be simply an improved audio quality, but related to one of the other features of mp4, in a web usage we have not yet seen. Thanks.