DC Offset Corrector
Checks whether a clip's waveform is shifted off centre (DC offset, often caused by cheap audio hardware), and removes it if it is.
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About this tool
A clean recording's waveform should average out to silence (zero) over time. DC offset is when every sample is nudged up or down by a constant amount, usually from a hardware fault in the recording chain — it wastes headroom and can cause an audible click wherever the file is cut or looped. Correcting it just subtracts that constant from every sample.