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IDR_M
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Join Date: Oct 2009
Posts: 6

Echo Elimination

10/03/2009 7:12 AM

I am currently working on my UG project that requires echo elimination as one of it's blocks. Could you please help me in guiding me towards a good book that deals with the subject or details regarding the techniques involved. my signal is in the audio frequency range of about 100->350 Hz (Acoustic signal).

also, if possible, please suggest a DSP processor which would be optimum for the processing of such a signal in realtime. operations include FFT and an FIR filter of order about 75. Would dsPIC30F be enough?

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Pathfinder Tags: Acoustic signal DSP. echo
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Mikerho
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#1

Re: Echo Elimination

10/03/2009 10:50 PM

UG = UnderGround?

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IDR_M
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#2
In reply to #1

Re: Echo Elimination

10/04/2009 9:53 AM

Under Graduate.. sorry, I thought it was universal. ^__^"

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nick name
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#3

Re: Echo Elimination

10/04/2009 1:59 PM

Have you had a look at patents applied on this subject? You could find hints about the sources you try to find.
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ffej
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#4

Re: Echo Elimination

10/04/2009 7:00 PM

Sounds like a great project, I did something similar myself with a TMS320C45 (a very long time ago).

Talk to your lecturers about suitable books, they'll be able to suggest something that will link into your existing maths subjects.

The choice of DSP will come down to what is supported at your Uni. That way you'll have local expertise, support equipment (emulators, cables) and similar projects to learn from.

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babybear
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#5

Re: Echo Elimination

10/04/2009 10:53 PM

Hi IDR M,

Check these couple of sites. I am still looking for a book. But feel that it may be more useful to find what you want on-line, and print what you need perhaps?

Results 1 - 10 of about 7,970 for echo elimination in range 100 to 350 Hz Acoustic. (0.21 seconds)

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  • AES E-Library: The Acoustic Design of Talks Studios and Listening ...It will be unnecessary to continuehe list beyond,say, 350 Hz because,as already ... These conditions give rise to the well-known phenomenon of flutter echo, ...
    www.aes.org/e-lib/browse.cfm?elib=3226 - Similar -
    by CLS Gilford
  • On the Performance of Active Noise Control FX-LMS and FBFX-LMS ...the frequency range from 100 to 450 Hz. Moreover, the step size parameter P was optimized ..... with different frequency mixed together (200 Hz., 350. Hz. y 425 Hz.). ... [9] S. M. Kuo, Y. C. Huang, Z. Pan, "Acoustic Noise and Echo Cancellation Microphone System for ... Algorithms For the Elimination of Power Line ...
    doi.ieeecomputersociety.org/10.1109/CERMA.2008.30 - Similar -
    by A Pineda-Olivares

  • Good luck and keep in touch.
  • Take care

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IDR_M
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#6

Re: Echo Elimination

10/06/2009 11:07 AM

Thanks a lot guys...

I never thought a forum would be this active... ^__^

hope to get on with my project at full potential. thanks for all the help. any future queries I have will also be forwarded.

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