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Digital Audio

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Multimedia Signals and Systems

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Abstract

As one of the basic types of multimedia data, the audio signals (including speech analysis) have been considered in this chapter. The basic properties of music and speech signals are presented, together with the concepts of human speech production and hearing system. The main focus is on the lossless and lossy audio compression algorithms (MUSICAM; MPEG layer I, II, and III; ASPEC) and masking, based on the psychoacoustic model. Furthermore, the special purpose techniques for audio signals characterization are considered as well: voice activity indicators, word endpoints detector, time-frequency analysis of audio signals, and singular value decomposition of audio signals.

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Notes

  1. 1.

    For the signal with spectrum bandwidth B, the sampling frequency is f s=2B if (2f c + B)/2B is an integer (f cis the central frequency).

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Authors and Affiliations

  1. University of Montenegro, Džordža Vašingtona bb, Podgorica, Montenegro

    Srdjan Stanković & Irena Orović

  2. University of Pittsburgh, Benedum Hall, Pittsburgh, PA, USA

    Ervin Sejdić

Authors
  1. Srdjan Stanković
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  2. Irena Orović
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  3. Ervin Sejdić
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Correspondence to Srdjan Stanković .

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© 2012 Springer Science+Business Media, LLC

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Stanković, S., Orović, I., Sejdić, E. (2012). Digital Audio. In: Multimedia Signals and Systems. Springer, Boston, MA. https://doi.org/10.1007/978-1-4614-4208-0_2

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  • DOI: https://doi.org/10.1007/978-1-4614-4208-0_2

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  • Publisher Name: Springer, Boston, MA

  • Print ISBN: 978-1-4614-4207-3

  • Online ISBN: 978-1-4614-4208-0

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