Dear SAOL-folk,
The paper and slides I recently presented at the AES 17th International
Conference on High-Quality Audio Coding are now available from my
web page. I am pleased to say that there was quite a bit of interest in
the SA tools raised among the traditional audio compression community
as a result of my talk. I had good meetings with several people from
various companies that may be starting development projects imminently.
The abstract is attached; you can get the full paper and slides from
http://sound.media.mit.edu/~eds/papers.html.
Best to all,
-- Eric
----Scheirer, Eric D., and Youngmoo E. Kim Generalized Audio Coding with MPEG-4 Structured Audio.
Abstract : The MPEG-4 Structured Audio standard was created to enable low-bitrate yet high-quality transmission of synthetic sound. However, structured-audio techniques also are suitable for flexible natural coding. This paper introduces the concept of generalized audio coding, in which the Structured Audio decoder is used to mulate the behavior of other audio decoders. We prove that the MPEG-4 Structured Audio tool can be used to mimic the behavior of any other kind of decoder and that structured-audio coding is a universally minimal coding technique. We provide examples of simple natural audio coders that use the SA toolset, and characterize the overhead that arises in the transcoding process. Generalized audio coding removes marketplace barriers to the use of special- purpose or signal-adaptive coding formats, and thus promotes greater overall efficiency in the world of audio coding.
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+-----------------+ | Eric Scheirer |A-7b5 D7b9|G-7 C7|Cb C-7b5 F7#9|Bb |B-7 E7| |eds@media.mit.edu| < http://sound.media.mit.edu/~eds > | 617 253 0112 |A A/G# F#-7 F#-/E|Eb-7b5 D7b5|Db|C7b5 B7b5|Bb| +-----------------+
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