How Does It Work?#

Phase Shifter 172 is a mono, Behringer 172-inspired phaser built from cascaded all-pass stages, with resonance feedback and either an internal LFO or an external CV sweep source.

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Quick Overview#

• It is a mono processor with one audio input, one modulation input, and one audio output.
• Shift Freq sets the center of the phasing network.
• Mod Int controls how far the sweep moves.
• Resonance increases the feedback emphasis.
• LFO Rate only matters when Mod CV is unpatched.

Inputs And Outputs#

Port	Type	What It Does
In	Audio	Audio input.
Mod CV	CV	External sweep source. When patched, it replaces the internal LFO.
Out	Audio	Fully processed phaser output.

Controls Reference#

Control	Values	Default	Behavior
Shift Freq	200..8000 Hz	800 Hz	Sets the base frequency of the all-pass network.
Mod Int	0..1	0.35	Sets sweep intensity.
Resonance	0..0.95	0.2	Feeds more output back into the network for a deeper, more vocal effect.
LFO Rate	0.05..12 Hz	0.35 Hz	Sets internal sweep speed when no external modulation is patched.

Modulation Behavior#

• With no cable at Mod CV, the module uses its internal sine LFO.
• With a cable at Mod CV, the external signal replaces that internal LFO.
• The output is intentionally 100% wet, so if you want dry blend you should handle that elsewhere in the patch.

Sound Notes#

• Lower Shift Freq settings tend to keep the sweep in a darker range.
• Higher Resonance makes the notch motion more pronounced.
• Slow internal LFO settings are good for steady phasing; external CV is better when you want the sweep to follow another signal or rhythm.