Earticle

초록

영어

The capability of providing real-time multimedia player over the Internet is an important future application for embedded system. However, the main challenge of such an application is the limitation on computation performance and memory size in architecture of embedded system, especially while encoding and decoding. In this paper, a Streaming Packet Tracer (SPT) algorithm is proposed for real-time tracing the streaming packet header. Based on the SPT algorithm, we present a novel software-based technique which enables a non-DSP embedded system to play and record real-time streaming audio simultaneously. To verify the feasibility of the proposed technique, a real-time Internet radio recorder has been implemented on SBC-2410x embedded system successfully. The experimental results show that our achievement has reduced the CPU usage rate from over 100% to about 30%-40% in comparison with other recording method.

목차

Abstract
 1. Introduction
 2. Methods for real-time audio recording
  2.1 Recording a streaming audio in WAV format
  2.2 Recording a streaming audio in compressed format
 3. New method for real-time recording streaming audio
  3.1 Streaming Packet Tracer (SPT) algorithm
  3.2 Packet loss handling for UDP
  3.3 Detection of Format-change
  3.4 Advantages of SPT
 4. Experimental results
 5. Conclusions
 References

저자

• Lain-Jinn Hwang [ Department of Computer Science and Information Engineering Tamkang University, Tamshui, 251, Taipei, Taiwan ]
• Chien-Chou Shih [ Department of Information and Communication Tamkang University, Tamshui, 251, Taipei, Taiwan ]
• I-Ting Kuo [ Department of Information and Communication Tamkang University, Tamshui, 251, Taipei, Taiwan ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Multimedia and Ubiquitous Engineering

• 간기

  월간

• pISSN

  1975-0080

• 수록기간

  2008~2016

• 등재여부

  SCOPUS

• 십진분류

  KDC 505 DDC 605