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Session K Sunday, December 2 9:00 am-12:00 noon
Chair: Jürgen Herre, Fraunhofer Institute for Integrated Circuits, Erlangen, Germany

9:00 am

K-1 Internet Audio Streaming Service Technology Integrated with Copyright Protection

Jeong-Il Seo, Tae-Jin Lee, Jong-Won Seok and Jin-Woo Hong, Electronics and Telecommunications Research Institute, Taejon, Korea

Little attempts have been done on adopting a watermarking technique for Internet Audio Streaming Service. In this paper we integrate an audio watermarking technique to MPEG-2 AAC Audio Streaming Service. Our novel audio watermarking scheme using linear prediction based watermarking embedding and extraction is robust to common signal processing attacks. We design and implement a simple packet loss recovery algorithm for the robust extraction of watermark data and design a business model for Internet audio streaming service. Experimental results show that our future AAC Streaming Service can safely protect the streaming audio contents from any kind of unauthorized copy or reproduction.

Convention Paper 5459


9:30 am

K-2 Error Concealment for Compressed Digital Audio

Pierre Lauber and Ralph Sperschneider, Fraunhofer Institute for Integrated Circuits, Erlangen, Germany

In digital audio, received bit streams of compressed audio data might be corrupted due to error-prone transmission channels. During decompression, errors will be propagated towards the audio output. Concealing these errors allows to minimize the resulting obtrusive deteriorations. The paper describes techniques for concealing transmission errors in ISO/MPEG-2/4 AAC digital audio signals by exploiting specific audio signal characteristics. These techniques have been successfully applied to both simulation and real-time processing.

Convention Paper 5460


10:00 am

K-3 Scalability and Synchronization in IEEE 1394-Based Content-Creation Networks

Thomas Thaler and Georg Dickmann, BridgeCo AG, Duebendorf, Switzerland

IEEE 1394 can now be used to create a scalable, synchronous, integrated services infrastructure; the key to building this is the IEEE p1394.1 bridging standard. The paper shows how scalability can be achieved via split multiportal bridges, shows how to distribute network time for synchronization, and demonstrates feasibility through simulations.

Convention Paper 5461


10:30 am

K-4 MPEG-21-What Does It Bring to Audio?

Gabriele Spenger, Jürgen Herre and Christian Neubauer, Fraunhofer Institute for Integrated Circuits, Erlangen, Germany
Niels Rump, Rightscom Ltd., London, UK

Despite widespread interest, electronic commerce for audio currently still presents a major challenge with regard to aspects such as security, transaction handling, interoperability of devices and services and end user experience. While many component technologies are already available addressing certain aspects of this scenario, a seamless integration of these functionalities into one unified framework has not been established yet. In response to this problem, the vision of the ongoing MPEG-21 standardization effort is to define a multimedia framework enabling transparent and augmented use of multimedia resources across a wide range of networks and devices used by different communities. This paper attempts to provide an overview over the concepts and the current status of the MPEG-21 framework and discusses its relevance for future electronic distribution and commerce of audio.

Convention Paper 5462


10:30 am

K-5 Advanced Audio Identification Using MPEG-7 Content Description

Oliver Hellmuth, Eric Allamanche, Jürgen Herre and Thorsten Kastner, Fraunhofer Institute for Integrated Circuits, Erlangen, Germany
Markus Cremer and Wolfgang Hirsch, Fraunhofer Institute for Integrated Circuits, Ilmenau, Germany

Driven by an increasing need for characterizing multimedia material, much research effort has been spent in the field of content-based classification recently. This paper presents a system for automatic identification of audio material from a database of registered works. The system is designed to allow reliable, fast and robust detection of audio material with the resources provided by today's standard computing platforms. Based on low level signal features standardized within the MPEG-7 framework, the underlying audio fingerprint format bears the potential for worldwide interoperability. Particular attention is given to issues of robustness to common signal distortions, providing good performance not only under laboratory conditions, but also in real-world applications. Improvements in discrimination, speed of search and scalability are discussed.

Convention Paper 5463


11:00 am

K-6 A Legacy Adapter Component of a 1394-Based Professional Studio Architecture

Richard Foss, Rhodes University, Grahamstown, South Africa
Bob Moses and Rob Laubscher, Digital Harmony, Seattle, WA, USA

Digital Harmony Studio is a specification for an IEEE-1394-based studio architecture for professional audio production. The specification identifies a number of device categories, including legacy adapters. Legacy adapters provide a vital link between the pro studio environments and current pro audio devices, and will typically take the form of breakout boxes exposing legacy ports. This paper describes a reference design for the first working device within the 'Legacy Adapter' category of the specification.

Convention Paper 5464

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