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Fixed HPF Unit
Cheap single-pole highpass filter for removing signal bias or DC. Fixed HPF
Overview
This is a cheap single-pole high-pass filter that is optimized for set-and-forget scenarios. Typical uses are:
- Removing DC bias (i.e. centering a signal around zero) to prevent pops or maximize head room.
- Also useful for preventing drift in feedback loops.
Parameters
freq
This parameter sets the cut-off frequency of the high-pass filter.