Digital forensics expert Lars Daniel has a new 8-minute video explaining how he spotted 80 different points where an audio file was edited in a criminal case he testified in a couple of weeks ago. He did this via a spectrogram analysis, which lets you “see” where audio has been edited, even if you cannot hear it. In the case, the girlfriend claimed she secretly recorded the audio, which was used by the prosecution at trial. Lars provided expert testimony in the case, and the defendant was found not guilty on all counts of assault on a female.
Lars has additional videos about litigating cases with digital evidence on his YouTube channel where he gives quick explanations of some hot topics in digital forensic evidence.

