Speech Web Application using SALT

Question

Dear all, I have developed a voice-enabled(SALT) web application on Win2003 using SASDK Beta 3 using VisualStudio.NET. During speech recognition i.e. when the Listen element starts(user sees the audio meter on the UI) the speech recognition engine interprets even noise also and the application reacts to this noise. Is there any possiblity of avoiding interpretion of noise by speech recognition engine so that the application doesn't react on this ?. Could anyone help on this ? Regards, Sateesh