ENF (Electrical Network Frequency)
Definition
The instantaneous frequency of the mains electricity supply (nominally 50 or 60 Hz), which drifts continuously and uniquely with time and is captured as background hum in mains-proximate audio recordings.
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Explained in
- Forensic Acoustics and Gunshot Acoustic AnalysisThe instantaneous frequency of the mains electricity supply (nominally 50 or 60 Hz), which drifts continuously and uniquely with time and is captured as backgr...