Forensic Audio & Video Transcription Services
Forensic Audio & Video Transcription Services are 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.
How do we transcribe audio forensically?
Most often, it?s dialogue. If the audio enhancement is still difficult to hear, and that happens a lot, then the forensic transcript is an add on that is a scientific document that is signed and sworn by the expert witness as to the words that are spoken. In that document, I often use the word ?unintelligible? because some of the time, you can?t make out what is being said and it?s best to air on the side of caution when that happens.
The transcript most commonly ends with the following language:
‘Based on the pains and penalties of perjury, I testify that the above forensic transcript is an accurate representation of the dialogue (or events) spoken during the time of this recording so help me’ then we sign it.
A Forensic Approach
Audio Transcription for Video
Often times i am asked to enhance or clarify an audio signal from a video recording as well as transcribe it. I apply the same policies and procedures to preserve the integrity and quality of the audio recording for enhancement as well as transcription.
Once the recording is enhanced i then re attach it to the video recording and type the transcript on screen as subtitles. This makes the video exhibit very powerful for presentation to court. Now you can add the words to the screen and create a demonstrative exhibit from the forensic transcript in case the trier of fact will not let that in 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 was extracted from original video recording
- Audio evidence was then enhanced or clarified
- Audio evidence was then re attached to the video evidence
- Closed captions were added as an overlay to the video evidence
- Video evidence was exported for courtroom use
So now we?ve got a demonstrative piece of video that has enhanced audio and the forensically transcribed and perceived words on the screen. The exhibit then becomes valuable based on its multi-functionality. And to top it all off, it has been created? based on a scientific foundation for the trier of fact.
But the bottom line is this, 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 often complete transcription services so that the judge and jury can follow along to the evidence as it is played in court. This additional work product can be extremely useful in poor listening environments where not all parties can clearly hear the recording during playback.
Primeau Forensics understands the importance our work products may have in the courts.?High quality equipment is?used for every transcript and each finished transcript is reviewed by multiple examiners in our firm.