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 ABSTRACT
We propose a framework to achieve bandwidth efficient, error robust and bitrate scalable audio streaming. Our approach is compatible with most audio compression format. The main contributions of this paper include: 1) the proposal of a Multi-Stage Interleaving (MSI) strategy which translates packet loss into loss of separate frequency components that are less perceptually significant; and 2) the design of a Layered Unequal-Sized Packetization (LUSP) scheme which enables bitrate scalability and prioritized packet transmission. The combination of the proposed MSI and LUSP allows the use of a set of simple yet effective methods of error concealment in the compressed domain. Our approach offers significant advantages over existing methods in terms of memory consumption (a savings of over 40 times in the sample MP3 implementation), and computational complexity, which are critical issues for battery-powered small devices.
REFERENCES
Note: OCR errors may be found in this Reference List extracted from the full text article. ACM has opted to expose the complete List rather than only correct and linked references.
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INDEX TERMS
Primary Classification:
C.
Computer Systems Organization
C.3
SPECIAL-PURPOSE AND APPLICATION-BASED SYSTEMS
Subjects:
Signal processing systems
Additional Classification:
H.
Information Systems
H.5
INFORMATION INTERFACES AND PRESENTATION (I.7)
H.5.5
Sound and Music Computing
Subjects:
Systems;
Signal analysis, synthesis, and processing
General Terms:
Algorithms,
Experimentation,
Human Factors,
Performance,
Reliability
Keywords:
compressed domain processing,
layered unequal-sized packetization (LUSP),
multi-stage interleaving (MSI),
robustness,
scalability,
streaming
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