• Yuli You


Sounds are physical waves that propagate in the air or other media. Such waves, whichmay be expressed as changes in air pressure,may be transformed by an analog audio system using a transducer, such as a microphone, into continuous electrical waves in the forms of current and/or voltage changes. This transformation of sounds into an electrical representation, which we call an audio signal, facilitates the storage, transmission, duplication, amplification, and other processing of sounds. To reproduce the sounds, the electrical representation, or audio signal, is converted back into physical waves via loudspeakers.


Compression Ratio Discrete Cosine Transform Discrete Fourier Transform Channel Capacity Audio Signal 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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  1. 29.
    Huffman, D.A.: A method for the construction of minimum-redundancy codes. Proceedings of the I.R.E. pp. 1098–1102 (1952)Google Scholar
  2. 49.
    Malvar, H.S.: Signal Processing with Lapped Transforms. Artech House, Norwood (1992)MATHGoogle Scholar
  3. 68.
    Oppenheim, A.V., Willsky, A.S., Hamid, S.: Signals and Systems. Prentice-Hall, Englewood Cliffs, NJ (1996)Google Scholar
  4. 75.
    Pinsky, M.A.: Introduction to Fourier Analysis and Wavelets. American Mathematical Society (2009)Google Scholar
  5. 85.
    Shannon, C.: A mathematical theory of communication. Bell System Technical Journal 27, 379–423 (1948)MATHMathSciNetGoogle Scholar
  6. 86.
    Shannon, C.: A mathematical theory of communication. Bell System Technical Journal 27, 623–656 (1948)MathSciNetGoogle Scholar
  7. 90.
    Stein, E., Shakarchi, R.: Fourier Analysis: An introduction. Princeton University Press, Princeton (2003)MATHGoogle Scholar
  8. 93.
    Vaidyanathan, P.P.: Multirate Systems And Filter Banks. Prentice Hall, Englewood Cliffs (1992)Google Scholar
  9. 102.
    Zwicker, E., Fastl, H.: Psychoacoustics: Facts and Models. Springer, Berlin (1999)Google Scholar

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© Springer US 2010

Authors and Affiliations

  • Yuli You
    • 1
  1. 1.University of Minnesota in Twin CitiesMinneapolisUSA

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