Add echo as described by difference equation to audio signal (in MATLAB) [closed]

1. How to add echo effect in audio matlab?
2. How to remove echo from audio file in matlab?
3. How does Matlab process sound signals?

How to add echo effect in audio matlab?

The function is to be called like this: output = echo_gen(input, fs, delay, amp); where input is a column vector with values between -1 and 1 representing a time series of digitized sound data. The input argument fs is the sampling rate.

How to remove echo from audio file in matlab?

Select and plot the section that corresponds to lags greater than zero. The autocorrelation has a sharp peak at the lag at which the echo arrives. Cancel the echo by filtering the signal through an IIR system whose output, w , obeys w ( n ) + α w ( n - Δ ) = y ( n ) .

How does Matlab process sound signals?

We import the audio signal into Matlab by executing the code below: % Program to implement a LPR(FIR) with cutoff 8kHz to denoise audio signal. [fileName, pathName] = uigetfile('*. *', 'select the input audio'); [x, Fs] = audioread(num2str(fileName)); % x is the audio samples and Fs is the sampling rate.