An efficient long distance echo canceller

  title={An efficient long distance echo canceller},
  author={allison. ferreira and Paulo A. C. Marques},
  journal={2008 International Conference on Signals and Electronic Systems},
This paper describes an implementation of a long distance echo canceller, operating on full-duplex with hands-free and in real-time with a single Digital Signal Processor (DSP). The proposed solution is based on short length adaptive filters centered on the positions of the most significant echoes, which are tracked by time delay estimators, for which we use a new approach. To deal with double talking situations a speech detector is employed. The floating-point DSP TMS320C6713 from Texas… CONTINUE READING


Publications citing this paper.


Publications referenced by this paper.
Showing 1-10 of 11 references

DSP Development Systems , “ TMS 320 C 6713 DSK technical reference

  • D. Hedberg D. Messerschmidt, C. Cole, A. Haoui
  • 2004

Adaptive Filter Theory

  • S. Haykin
  • 4th ed. Prentice-Hall
  • 2002
2 Excerpts

Advances in Network and Acoustic Echo Cancellation

  • J. Benesty, T. Gaensler, D. Morgan, M. Sondhi, S. Gay
  • Springer- Verlag
  • 2001
1 Excerpt

Understanding echo cancellation in voice over IP networks,

  • W. Witowsky
  • in International Conference on Signal Processing…
  • 1999
1 Excerpt

and P

  • D. Messerschmidt, D. Hedberg, C. Cole, A. Haoui
  • Winship, “Digital voice echo canceller with a…
  • 1986
1 Excerpt

Similar Papers

Loading similar papers…