A continuous modulated single sideband bandwidth extension

Nagel F, Disch S, Wilde S (2010)

Publication Type: Conference contribution

Publication year: 2010

Journal

2013 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)

Publisher: Institute of Electrical and Electronics Engineers Inc.

Pages Range: 357-360

Conference Proceedings Title: ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings

Event location: USA

ISBN: 9781424442966

DOI: 10.1109/ICASSP.2010.5495843

Abstract

Bandwidth extension (BWE) is an important parametric technique applied by modern audio coders in order to achieve efficient data rate compression at low bitrates. The perceptual quality of BWE enhanced signals is, however, often hampered by artifacts caused by inharmonicity. We propose hence a bandwidth extension method that avoids inharmonicity, and, at the same time, avoids the costly transmission of additional control parameters for frequency shifts. Harmonicity of the decoded signal is ensured by calculation of the autocorrelation function of the magnitude spectrum. The proposed bandwidth extension method is implemented by single sideband modulation (SSM). Fitting nicely in the general scheme of well established spectral band replication (SBR), the new method has some potential to replace the SBR patching algorithm. Potentially, the SSM can additionally govern the subsequent spectral shaping. Listening test results demonstrate an advantage of the novel scheme compared to SBR as used in high efficiency advanced audio coding (HE-AAC). ©2010 IEEE.

Authors with CRIS profile

Frederik Nagel Professur für Human Centered Data Science

Involved external institutions

Fraunhofer-Institut für Integrierte Schaltungen (IIS) DE Germany (DE) Gottfried Wilhelm Leibniz Universität Hannover DE Germany (DE)

How to cite

APA:

Nagel, F., Disch, S., & Wilde, S. (2010). A continuous modulated single sideband bandwidth extension. In ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings (pp. 357-360). USA: Institute of Electrical and Electronics Engineers Inc..

MLA:

Nagel, Frederik, Sascha Disch, and Stephan Wilde. "A continuous modulated single sideband bandwidth extension." Proceedings of the 2010 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2010, USA Institute of Electrical and Electronics Engineers Inc., 2010. 357-360.

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