FORENSIC AUDIO TRANSCRIPTION
WHAT IS FORENSIC AUDIO TRANSCRIPTION?
Forensic audio transcription is the scientific observation of words under controlled conditions derived from an enhanced audio recording. Audio enhancement is the process of removing unwanted sound and enhancing the wanted sound. Most often, our audio transcription services include the enhancement of dialogue. If the audio enhancement is still difficult to hear, then the expert witness signs off on the forensic transcript document and its contents. I use the word “unintelligible” in the forensic transcript to label content I am unable to understand.
The transcript most commonly ends with the following language; “I reserve the right to amend my conclusions and opinions as additional materials provided in conjunction with future oral testimony. Pursuant to 28 U.S.C. Section 1746, I declare under penalty of perjury that the foregoing transcript is true and correct.”
A FORENSIC APPROACH TO AUDIO TRANSCRIPTION
I have forensically enhanced thousands of audio recordings using principles accepted in the scientific community. An expert like myself goes deeper than simply listening. I analyze and decipher any hidden dialogue. Often times, I analyze recording details such as syllables and word formatting in a spectrogram, which is a visual display of the sound.
FORENSIC AUDIO TRANSCRIPTION SERVICES FOR VIDEO
I often enhance and transcribe audio within video recordings. I follow the same procedures to preserve audio integrity and quality for enhancement as well as transcription.
Once enhanced, we reattach the audio to the video recording. The transcript is now included on screen as subtitles, making the video a powerful tool for court. Adding words on screen creates a demonstrative exhibit from the forensic transcript in case the trier of fact will not allow it as a standalone piece of evidence.
WHEN CREATING THIS EXHIBIT, SOME CONCERNS CAN ARISE WITH THE CHANGES THAT HAVE OCCURRED IN THE VIDEO RECORDING:
- Audio evidence extracted from original video recording
- Audio evidence enhanced or clarified
- Evidence then re-attached to the video recording
- Closed captions added as an overlay to the video recording
- Video recording exported for courtroom use
Now we have a demonstrative piece of video with enhanced audio and the forensically transcribed and perceived words on the screen. The exhibit then becomes valuable based on its multi-functionality. Not to mention, it has been created based on a scientific foundation for the trier of fact. But the bottom line is that forensic audio transcription services help support the evidence in your case. Just because we can hear something in the lab, doesn’t mean it’s going to be easily reproduced to the trier of fact, opposing counsel, and the jury accurately.,
AUDIO EXPERT WITNESS
Primeau Forensics often provides audio enhancement to help the court better understand the events as they occurred. To help in this process, we will also complete audio transcription services so that the judge and jury can follow along to the evidence. This additional work product can be extremely useful in poor listening environments where not all parties can clearly hear the recording during playback.