# Search results

1. ### 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. ### 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. ### [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. ### [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...
5. ### [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...