Sustainability of Digital Formats
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Introduction | Sustainability Factors | Content Categories | Format Descriptions | Contact |
Full name | RealAudio, Version 10, AAC Codec |
Description | Recommended by RealMedia for use when delivered bitrates greater than 128 kb/s. RealMedia promotional literature states "for consumer music services, as well as easy transfer and playback compatibility to the extensive range of portable and mobile devices that support AAC." |
Production phase | Generally a final-state (end-user delivery) format. |
Relationship to other formats | |
Subtype of | RealAudio_10 |
Contains | AAC (MPEG-2 Advanced Audio Coding) |
LC experience or existing holdings | See RealAudio_10 |
LC preference | See RealAudio_10 |
Disclosure | See RealAudio_10 |
Documentation | See RealAudio_10 |
Adoption | See RealAudio_10 |
Licensing and patent claims | See RealAudio_10 |
Transparency | See RealAudio_10, and AAC (MPEG-2 Advanced Audio Coding). |
Self-documentation | See RealAudio_10 |
External dependencies | See RealAudio_10 |
Technical protection considerations | See RealAudio_10 |
Normal rendering | Good support. |
Fidelity (support for high audio resolution) | Good; promotional literature says that this codec provides "the highest quality listening experience for consumer music services." |
Support for multiple channels | See RealAudio_10 |
Support for downloadable or user-defined sounds, samples, and patches | Not applicable |
Functionality beyond normal video rendering | See RealAudio_10 |
Tag type | Value | Note |
Filename Extension | ra | Note that streaming applications require an associated ram (RealMedia Metafile) file. |
Internet Media Type | See RealAudio_10 | |
Magic numbers | See RealAudio_10 |
General | |
History |
URLs
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URLs
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