Audio Enhancement: When Do It Yourself Won’t Work
Can an audio recording be enhanced? Forensic audio enhancement is a process of removing unwanted sounds and preserving the wanted sound. Unwanted sounds include static, HVAC fans, hums, and other…
Audio enhancement is the forensic process of clarifying audio recordings using nondestructive techniques to preserve speech intelligibility so that the trier of fact can make determinations about the events within the recording. Above all, the goal of audio enhancement is to preserve the integrity of the audio recording. This process is also known as speech enhancement and voice enhancement.
Often times when a layperson processes an audio recording, they may not be aware that the changes they make to the recording could have a negative effect. The authenticity of the events change, an inaccurate representation of the events makes the recording inadmissible in court. This can also come from an inaccurate perceptual quality change.
In addition, the same is true for the audio quality of a video clip. We also perform audio enhancement on video recordings like police dash cameras, body cameras, Ring CCTV devices to improve speech. That is why we have additional information for your review here on how to enhance the audio in a video file.
Using a Compressor for Forensic Audio Enhancement
As an Audio Forensic Expert, knowing what tools are available to me and how they work is extremely important. One type of signal processor that I frequently use is a…
The Structured Approach to Objective Audio Enhancement
The audio enhancement processes that I have learned are some of the accomplishments of which I am most proud as a forensic expert. Audio enhancement is both an art and…
Post JFK Assassination Air Force One Flight Deck Enhancement Process
A lot of people have been asking how I restored the Air Force One radio transmissions from November 22, 1963, right after JFK was shot. Below I have outlined my…
Post JFK Assassination Air Force One Flight Deck Enhanced Recordings
Primeau Forensics was originally contacted by Bill Kelly, a researcher for the JFK assassination in connection with Duquesne University. He asked audio forensic expert, Ed Primeau, to assemble and enhance…
Eavesdropping: Is It Worth The Risk?
You're having problems at home. Your spouse has been acting very suspicious recently. You can't help but think that your significant other is having an affair, but lack of communication…
Audio Enhancement from CCTV
Recently I have been asked on several of my forensic investigations to enhance the audio recorded on CCTV surveillance video. Audio can be very useful evidence in addition to CCTV…
Audio Enhancement vs Clarification; The Audio Filtering Process
I am often given digital audio recordings by litigators to enhance. They want to hear the voices in the recording better than what they currently hear. In litigation, it should…
Audio Enhancement Tips for Concealed Recordings
As an audio forensic expert, I receive concealed audio recordings for forensic audio enhancement. These recordings are almost always created in noisy public environments. The goal is to remove the…