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Category Archives: Audio Enhancement

Forensic audio enhancement services are the scientific process of clarifying audio recordings using non-destructive techniques to preserve speech quality. This is crucial for the trier of fact can make determinations about the events within the recorded evidence. Above all, the goal of forensic enhancement is to better hear dialogue by removing unwanted noise. This scientific process of improving the quality of dialogue is also known as speech enhancement or voice enhancement.

 

Audio Forensics Expert applies enhancement techniques to remove sounds like static, furnace and air conditioning fans, hums and other distracting sounds. Therefore, these distracting noises are also known as “unwanted sounds”. Then, once we remove the unwanted sounds, we can apply enhancement processes. These enhancement processes will increase the “wanted sound” like speech.

Our forensic audio experts apply enhancement services using industry-standard equipment that is also used by law enforcement. Above all, this is necessary to improve speech with forensic accuracy. Once the recording is enhanced, it can then be admitted as a clarified exhibit to assist the Trier of Fact.

Similarly, the same is true for the audio quality of a video clip. We also perform enhancement to the audio within video recordings like police dash cameras, body cameras, doorbell surveillance devices (CCTV). That is why we have additional information for your review here how to enhance audio in a video file.

Often times when a layperson processes an audio recording, these changes affect the recorded evidence in a negative way. For instance, the authenticity of the events change and an inaccurate representation of the events makes the recording inadmissible in court. This is oftentimes based on changes a nonqualified technician makes that alters the sounds in the recording.

A qualified forensic expert must follow the best practices established by the scientific community. This includes performing the audio enhancement services accurately, documenting the procedures used and presenting the findings to the Trier of Fact. In order to identify dialogue with accuracy, a successful enhancement or voice enhancement investigation is essential. Our expert witness testimony communicates these results in an accurate way to the Trier of Fact.

In conclusion, our client’s experience will experience how improved speech can assist the Trier of Fact in making determinations. Whether it be a smaller criminal case or a multi-billion dollar civil case. When audio recordings that are difficult to hear are enhanced forensically, they only help the litigation process.

Enhanced Dialogue as an Ear-Witness in Court

January 4, 2020 Audio Forensic-ExpertAudio Enhancement, Forensic Audio EnhancementLeave a comment0

What is Enhanced Dialogue as an Ear Witness?

Enhanced dialogue as an ear witness is one of the most important forms of digital media evidence and the focus of this blog post. With the number of audio recordings used in court today, it is important that the …Read More

Audio Enhancement: When Do It Yourself Won’t Work

April 29, 2016 Audio Forensic-ExpertAudio EnhancementLeave a comment0

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 distracting background noise. The goal is to reveal or uncover the dialogue, conversation or wanted …Read More

Forensic Audio Enhancement: Removing a Single Sound

August 24, 2015 Audio Forensic-ExpertAudio EnhancementLeave a comment0

One of the most common audio issues with audio enhancement is noise. Noise and other extraneous unwanted sounds make up the noise floor in a recording. Unwanted sounds interfere with the wanted sounds. Removing the unwanted sounds and raising the intelligibility of the wanted sounds …Read More

Ted Rall and the L.A.P.D: What Really Happened?

August 20, 2015 Audio Forensic-ExpertAudio EnhancementLeave a comment0

On May 11th, 2015, Los Angeles Times Freelance Political Cartoonist Ted Rall published an Op-Ed relating to an incident he allegedly faced with the LAPD back in 2001.

Rall claimed while being stopped for jaywalking in Los Angeles, an officer of the Los Angeles Police department …Read More

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Audio Forensic Synchronization: What Happened When?

June 24, 2015 Audio Forensic-ExpertAudio Enhancement, Audio Forensic ExpertLeave a comment0

Generally speaking, any device that captures video is also capable of simultaneously capturing audio. This audio can be crucial to the Forensic Expert, as it can show the expert more clearly what happened when, when it comes to a crime scene.

Picture this: a young man …Read More

The Structured Approach to Objective Audio Enhancement

July 9, 2014 Audio Forensic-ExpertAudio EnhancementLeave a comment0

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 a science; and as an audio forensic expert with 30 years of experience, I can …Read More

An Affordable Approach to Audio Enhancement

June 10, 2014 Audio Forensic-ExpertAudio Enhancement1 Comment0

Audio enhancement is the number one forensic activity at Primeau Forensics. Audio enhancement, or sound enhancement, questions and assignments come into our offices daily from around the world. Audio enhancement helps people better understand words that were recorded but not clearly heard.
Last November, I was …Read More

Audio Enhancement A Forensic Approach

April 25, 2014 Audio Forensic-ExpertAudio Enhancement, Audio Forensic ExpertLeave a comment0

Most people searching for audio enhancement are looking for a solution to better hear a poorly recorded audio conversation. There are two ways to look at audio enhancement, from a recreation standpoint and a legal standpoint. The audio recording may or may not be a …Read More

Generation Loss in Analog and Digital Recordings and Audio Forensics

January 2, 2014 Audio Forensic-ExpertAudio Enhancement2 Comments0

It has become very easy to download and share music with friends. As an audio forensic expert, I am often asked why music loses quality when transferred from one person to another. In the following post, I will share some explanations about generation loss, file …Read More

Audio Enhancement from CCTV

April 26, 2013 Audio Forensic-ExpertAudio Enhancement, Audio Forensic ExpertLeave a comment0

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 surveillance video in the courtroom. Audio helps fill in the missing components that help the …Read More

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