Generating an Echo for an Audio Signal using Convolution

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Abdelrhman Abdelfatah
回答： mariam 2023-12-5
[y,Fs] = audioread('Test1.wav');
delay=0.8*Fs; %Delay
attenuation_factor=0.4;
h=zeros(1,delay);%Impulse
h(delay)=attenuation_factor; %Impulse at delay
z=conv(y,h); %Convolution
sound(z,Fs)
The produced sound doesn't include the desired echo, and not sure why so. I would apprechiate the help

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采纳的回答

Prakash S R
Prakash S R 2022-5-10
编辑：Prakash S R 2022-5-10
z is simply the delayed input (echo). You forgot to add echo to the input! You are listening to the echo component only, not sound + echo

更多回答（1 个）

mariam
mariam 2023-12-5
[y,Fs] = audioread('Test1.wav');
delay=0.8*Fs; %Delay
attenuation_factor=0.4;
h=zeros(1,delay);%Impulse
h(delay)=attenuation_factor; %Impulse at delay
z=conv(y,h); %Convolution
sound(z,Fs)

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