Making digital and analogue audio recordings clearer and easier to listen to
Digital recording devices at times produce many unwanted, distracting and obstructing noise interference and frequency distortion artefacts. This in its entirety can cause the recording to be displaced or unintelligible. The following examples are mentioned to indicate where both standard enhancement of a digital recording and the forensic enhancement of digital audio recordings are often required:
In many cases conversation is recorded to assist an individual or organisation in documenting dialogue spoken during a specific scenario or meeting. Depending on where the recording device microphone has been placed the end product can often produce weak, distant, muffled or distorted recordings
In the modern age, digital recordings can be easily produced with applications on mobile phones, as well as standard issue recorder or Dictaphone devices
However, with the ease of abilities to record, there also comes the inherent issues of authenticity. Audio recordings can now be easily edited, cut and cropped using mobile applications or computer software, obtainable by the lay person
In many cases, authenticity verification can be used to assist an individual or establishment in documenting whether such edits have been conducted. Tampering of this nature normally transpires to be removed parts of the recording, which are not favourable to the recording party
Some examples of anomalies or potential signs of editing that can occur in audio:
Going beyond metadata, our in-house technician utilises DAW (digital audio workstation) software to conduct a visual inspection of audio files. A visual interpretation of audio, called a Waveform, can highlight discrepancies in signals and frequencies captured in a recording
Additionally, audible methodology can highlight points where audio can be heard to ‘skip’ or ‘jump’ which can also highlight potential editing of the recording
A file can also be forensically enhanced to assess and improve the quality of a recording, removing any background noise and improving the vocals of any contained speech
Costs are dependent on the amount of edits known or discovered and the length of the recording assessed. Initially you should allow for a base cost of £95 + V.A.T with analysis charged on an hourly basis thereafter
While now not so common, similar principles can be used to enhance analogue recordings
Our sound engineer is in-house and has a wealth of professional experience – with perfect pitch
Costs vary a little depending upon the processes applied and the length of recording however you should allow for a base cost of £95 + VAT and around an hour's work for every 10 minutes of recording - see our price tariff for details
Contact us to find out more - by telephone on 01483 200999 or 020 7158 0332 or by sending an email to info@private-detectives.co.uk
Forensic investigation of computers by first cloning the hard drive, leaving the original intact, before rebuilding all deleted files on the computer
Recovering the hidden and deleted information from a mobile phone, that can be essential in proving the user's movements and acticity
Electronic surveillance by employment of a vehicle tracker with a daily or instant report showing a vehicles location accurately
