how to generate impulse noise for audio or any signal processing

hi everyone,

I want to generate impulse noise signal for audio or any signal processing applications, specially for signals, in matlab what are the functions available to generate noise signals are for image processing, please help me in this issue.

thanking you,

krishna mohan p v

[Jefferson Osowsky]

See https://www.mathworks.com/matlabcentral/fileexchange/73336-impulsively-distributed-random-number-generator

Answer 1

[krishna mohan venkata puvvadi]

Thank you, I will try this

[Image Analyst]

To thank people you can vote for and/or accept their answers.

But why is this answer the Answer that got accepted and earned the reputation points?

It's not even an answer to the original post?

Answer 2

[Image Analyst]

Use randperm() to get indexes for the noise. Then set the values to whatever you want. For example (untested)

numNoiseElements = 100;
noiseIndexes = randperm(length(yourSignal), numNoiseElements);
yourSignal(noiseIndexes) = someBigValue;

If you run into any problems, attach your code, and signal, if it came from a file.