Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Search results

  1. E

    ERLE for Acoustic Echo Cancellation.

    Hi everyone, I am working on acoustic echo cancellation which has a double talk detector. During the single talk, the ERLE exceeds 100dB and during double talk around 20dB to 40 dB. I have read few papers and saw that for a good echo cancellar the ERLE should be between 40-50dB. I am going...
  2. E

    Mean, variance, and standard deviation.

    Can someone please explain me about the mean, variance and standard deviation of signals(speech signals) and why they are so much important in analyzing a signal? and also the type of distribution like Gaussian or non-Gaussian? and what do you mean by independent components of a signal...
  3. E

    [SOLVED] Cross-correlation in matlab without using the inbuilt function?

    can someone tell how to do the cross-correlation of two speech signals(each of 40,000 samples) in the matlab without using the inbuilt function Xcorr and how do I find correlation coefficient? Please be tolerant.Thanks in advance.
  4. E

    [SOLVED] Samples by samples cross-correlation(Xcorr)

    Hi Z, I am not sure how fast it works in the real time since right now I am working only on matlab in which there is no delay. But when I showed the code I have written to my instructor he said in the real time this would create some delay by sending all the samples at a time. So he asked me to...
  5. E

    [SOLVED] Samples by samples cross-correlation(Xcorr)

    yes, I am bothered about the time it takes for processing the entire 40,000 samples at a time. I am working on the blind source separation. I have an ouput signal which is shat(which is 2x40000). shat(1,:) is the first signal and shat(2,:) is the other signal. I have the input signals S1 and S2...
  6. E

    [SOLVED] Samples by samples cross-correlation(Xcorr)

    Hi, I am using the xcorr function for identifying the similarity of the signals. the following is the code, r1 = max(abs(xcorr(S1, shat1,'coeff'))); r2 = max(abs(xcorr(S1,shat2,'coeff'))); if r1>r2 dn=shat2; else dn=shat1; end But the problem is the signals are having 40,000 samples...
  7. E

    [SOLVED] Comparison of signals.

    Yes, I am using the matlab. Xcorr is the cross-correlation. How do I find the peaks? Could you be please be clear here? Thanks for the reply. ---------- Post added at 18:57 ---------- Previous post was at 18:05 ---------- Thank you Barry. I got it what you meant. It worked. Thank you so much.
  8. E

    [SOLVED] Comparison of signals.

    Hi, I have two estimated(separated)signals and a reference signal. One of the estimated signal is quiet same as the reference signal. I was trying to compare the estimated signals with the reference signal and want know which signal is what. I tried using the correlation but did not work...

Part and Inventory Search