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ABSTRACT

Handheld devices with embedded systems are massively used in modern times due to their characteristics of portability and convenience. In addition to the basic general functions, video and audio capabilities are also indispensable to embedded systems. The performance of application software running on embedded devices is limited to the optimization process done by the manufacturers. In this paper, we analyze the energy consumption of multimedia audio decoding on embedded systems. Given the electric power analysis results, we are able to compress audio data with the best energy conservation ability to replay on embedded systems. By fine tuning audio compression settings of various popular codecs, an energy efficient suggestion is provided for devices with embedded systems.

REFERENCES

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INDEX TERMS

Primary Classification:
  E. Data
  E.4 CODING AND INFORMATION THEORY

Additional Classification:
  C. Computer Systems Organization
  C.3 SPECIAL-PURPOSE AND APPLICATION-BASED SYSTEMS
      Subjects: Real-time and embedded systems

  H. Information Systems
  H.5 INFORMATION INTERFACES AND PRESENTATION (I.7)
      H.5.1 Multimedia Information Systems
          Subjects: Audio input/output

General Terms:
Algorithms, Design, Performance, Theory

Keywords:
codecs, embedded systems, energy consumption, energy efficiency, multimedia audio coding/decoding