It is very difficult to obtain clean voice recordings in a real life environment, as people rarely sit still in quiet offices and talk openly to a hidden recording device.
CSITech are able to use the very latest in Audio forensic software to isolate key elements of a recording, such as a conversation, and reduce or remove the unwanted sound.
This can include:-
- Music playing
- Traffic noise
- Muffled recordings
- Static
- Other background noises
New techniques such as Dynamic Spectral Subtraction can extract voice from even extremely high noise situations.
Enhancement of voice or other sound elements can be critical in an investigation to be able to clearly hear speech or achieve language translation.
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The choice of many agencies, CSITech can analyse and clean up surveillance recordings including the removal of background noise, static and music.
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