BPB Dirty Filter

BPB Dirty Filter is a freeware tube distortion effect. It features a pair of resonant filters that can distort a specific area of the frequency spectrum.

In a way, BPB Dirty Filter is similar to multi-band distortion but with a more straightforward workflow. Choose a frequency that you'd like to distort and increase the Drive parameter to add resonance and tube saturation.

With the Drive knob set to zero, BPB Dirty Filter operates as a transparent filter plugin. In this mode, it is great for cleaning up low-frequency hum or removing high-frequency noise.

When the Drive knob is set above 50, BPB Dirty Filter transforms into a powerful distortion effect. Use high amounts of distortion in tandem with the Mix knob to keep some of the original audio.

Features:

• High-pass filter (20 Hz – 20 kHz).
• Low-pass filter (20 Hz – 20 kHz).
• Adjustable slope (12, 24, 36, or 48 dB/octave).
• Tube distortion.
• Mix (0 – 100%).
• Output volume (±12 dB).
• Available for Windows & macOS.
• 32-bit & 64-bit compatible.
• VST2/VST3/AU/AAX plugin formats.

Price: Free.

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