CNN CNN Newsroom July 1, 2013 13:25:00
An expression. we just use subtraction. 80 minus 40 gives me the voice. my voice carries about a 40 db signal to noise ratio and thats what you hear. 20 is 100. its more than. >> this is a voice analyst for the fbi. all of us is struggling to understand why hes testifying because we thought that any voice analysis that would be introduced in court would not be allowed. were talking about those 911 tapes and whose voice was on the tapes. sonny, what do you make of this? >> i think im just as conf...
Source: archive.org