Hello Everybody, I want to add speckle noise and impulse noise to my signal and at the same timr i want to filter those noises.Is anybody there to guide me. sravana sandhya 5, 50, 500, 5000 - Store N number of mails in your inbox. Go to http://help.yahoo.com/l/in/yahoo/mail/yahoomail/tools/tools-08.html