joranalogue/morph-4

Morph 4

Joranalogue Audio Design

Four-channel linear voltage-controlled modulation array with a master morph parameter that sweeps a triangular amplitude response across all channels; functions as a quad VCA, crossfader, panner, scanner, and more, with normalled inputs and multiple combinational outputs.1095

Capabilities 4

Mixermixer
Adder and averager outputs combine all four channels for voltage-controlled mixing and scanning applications.1095
Morphingmorphing
A master morph knob and CV input sweep a triangular amplitude envelope across all four channels simultaneously; position and span per channel set the peak location and width.1095
Quad VCAquad-vca
Four linear VCA channels each with independent triangular morph response, position, span, and direct level CV override.1095
Voltage-Controlled Crossfadercrossfader
A+B and C+D summing outputs allow the module to function as a dual crossfader under morph control.1095

Jacks 23 (13 in / 10 out)

NameSignalVoltageDescription
Inputs (13)
CH A Level CV Inputcv0V to 5VDirect linear level CV for channel A; overrides the morph-generated level. Unity gain at +5 V, fully closed at 0 V; can amplify above +5 V.1095
CH A Position/Span Inputcv—1095
CH A Signal Inputmixed—Signal input for channel A; normalized to +5 V when nothing is patched. B, C, D are normalled from the preceding channel.1095
CH B Level CV Inputcv0V to 5V1095
CH B Position/Span Inputcv—1095
CH B Signal Inputmixed—1095
CH C Level CV Inputcv0V to 5V1095
CH C Position/Span Inputcv—1095
CH C Signal Inputmixed—1095
CH D Level CV Inputcv0V to 5V1095
CH D Position/Span Inputcv—1095
CH D Signal Inputmixed—1095
Morph CV Inputcv—CV input for the master morph parameter; a paired polariser knob scales the incoming signal. Can move the morph value outside the 0–5 V manual range.1095
Outputs (10)
A+B Outputmixed—Summed mix of channels A and B; typically used for stereo crossfading.1095
Adder Outputmixed—Unity-gain sum of all four channel outputs; suited for low-level signal mixing.1095
Averager Outputmixed—Average (−12 dB gain) sum of all four channel outputs; avoids clipping with stronger signals.1095
C+D Outputmixed—Summed mix of channels C and D; typically used for stereo crossfading.1095
CH A Outputmixed—1095
CH B Outputmixed—1095
CH C Outputmixed—1095
CH D Outputmixed—1095
Maximum Outputmixed—Continuously computed instantaneous maximum of the four channel output voltages, produced by analogue circuitry.1095
Minimum Outputmixed—Continuously computed instantaneous minimum of the four channel output voltages, produced by analogue circuitry.1095

Parameters 14

NameTypeRangeBehavior
CH A Levelknob—1095
CH A Positionknob—Sets the morph axis position at which channel A reaches its peak amplitude response. For example, center position = peak when morph is at center.1095
CH A Spanknob—Sets the width of the triangular amplitude response for channel A; a narrow span means the channel is only open for a small range of morph values around its peak position.1095
CH B Levelknob—1095
CH B Positionknob—1095
CH B Spanknob—1095
CH C Levelknob—1095
CH C Positionknob—1095
CH C Spanknob—1095
CH D Levelknob—1095
CH D Positionknob—1095
CH D Spanknob—1095
Morphknob0V – 5VMaster macro control affecting all channels simultaneously. Sets the morph axis value; each channel's response depends on its own position and span settings. External CV via the modulation input can push the morph value beyond the manual range.1095
Morph Attenuverterknob—Polariser (attenuverter) for the morph CV input; scales and optionally inverts the external modulation applied to the morph parameter.1095

Firmware history 3 versions

VersionReleasedNotes
Rev-D—Revised VCAs to ensure they fully close at a level CV of 0 V.1095
Rev-C—No functional changes.1095
Rev-B—Initial release.1095

References 2

  1. [1095]
    Joranalogue Morph 4 User Manualmanual
    source 1095 canonical ↗ archived ↗
    ● verified 2026-06-03
  2. [1096]
    Joranalogue Morph 4 product pageproduct_page
    source 1096 canonical ↗ archived ↗
    ● verified 2026-06-03