Forensic audio · Melbourne, Australia
Forensic audio analysis and expert testimony
We examine, enhance and authenticate audio recordings for lawyers, investigators, police and corporate clients, and give court testimony and deposition on our findings. Every enquiry is handled in confidence.
What forensic audio services do you provide?
We provide audio authentication, voice identification, enhancement, preliminary examinations, frequency analysis, restoration, and expert testimony.
- Audio authentication
- Examining whether a recording is original and continuous, or shows signs of editing.
- Voice and speaker identification
- Comparing voices across recordings to assess whether they come from the same speaker.
- Audio enhancement
- Reducing noise and interference so speech is easier to hear and transcribe.
- Preliminary examinations
- A first assessment, so you know what further analysis can realistically show.
- Frequency analysis
- Measuring a signal across the spectrum to identify sounds, artefacts and events.
- Recording restoration
- Examination and restoration of mobile phone and cockpit voice recorder recordings.
- Court testimony and deposition
- Explaining findings clearly to a court or in deposition.
Methodology
How do we examine a recording?
In five documented stages, from first enquiry to evidence. We work with the full range of Algorithmix processors and iZotope tools, and as an authorised beta tester of leading mastering products we have early access to new restoration techniques.
- 01
Enquiry and scope
We discuss the matter, the questions you need answered and your deadlines, before any material changes hands.
- 02
Receipt and preservation
Material is logged on arrival. The original is preserved and all work is done on copies.
- 03
Examination
Critical listening, waveform and frequency analysis, and enhancement where needed.
- 04
Findings
A written account of what was examined, how, and what the recording does and does not show.
- 05
Testimony
If the matter proceeds, we present the findings in court or in deposition.
What kinds of recordings do we examine?
- Recorded interviews and conversations
- Phone and mobile recordings
- Cockpit voice recorder (black box) audio
- Surveillance and evidence recordings
- Recordings suspected of editing
- Corporate and banking investigations
Confidentiality and chain of custody
How is your material kept confidential?
Enquiries and material are handled in confidence, and every step from receipt to return is recorded so the integrity of the evidence can be shown.
Originals preserved
The original is never altered. Analysis is done on copies.
Documented handling
Receipt, storage, processing and return are logged.
Secure transfer
Evidence is never sent through the website. We arrange transfer with you directly.
Can you give expert evidence in court?
Yes. We give court testimony and deposition on our findings, and explain technical results in plain language.
Make a confidential enquiry
Tell us briefly what the matter involves. We will contact you to discuss scope before any material is sent.
Please do not attach recordings or evidence to this form.
Thank you. Your enquiry has been sent.
We will contact you by your preferred method. If the matter is urgent, call +61 3 7067 3368.