Mutable Instruments Veils

Name: Veils
Brand: Mutable Instruments

Four transparent VCAs with mixing and offset control

10 HP Eurorack module

Veils is a quad VCA with continuously variable exponential-to-linear response curves, an offset control per channel, and daisy-chained outputs that allow groups of channels to be summed into a mixer. It is equally at home shaping amplitude envelopes, animating oscillator blends, scaling modulation signals, and half-wave rectifying bipolar LFOs into unipolar control voltages.

Features

Four independent DC-coupled VCAs with audio-rate signal handling
Continuously variable exponential-to-linear response curve per channel
Positive offset control (0 to 8V) per channel added to the gain CV
Gain CV input normalized to +8V when unpatched for slider-as-gain use
A +5V CV yields unity gain (0dB) in both linear and exponential modes
Exponential mode supports gains above +20dB for amplifying line-level signals
Daisy-chained outputs: unpatched outputs sum their signal into the next channel downstream
Gain indicator LED with brightness proportional to VCA gain on a dB scale
Output indicator LED with brightness representing signal level and color representing polarity
All inputs 100k impedance, DC-coupled
Compact 10-HP footprint with sliders instead of knobs for gain/CV amount
Output formula: (CV × cv_amount + offset) × input_signal

Controls & Jacks (31)

Gain CV Input 1— Gain CV input, normalized to +8V when unpatched
Gain CV Input 2— Gain CV input, normalized to +8V when unpatched
Offset 1— Adds positive offset (0 to 8V) to the CV signal for unipolar modulation from bipolar sources
Gain CV Input 3— Gain CV input, normalized to +8V when unpatched
Gain CV Input 4— Gain CV input, normalized to +8V when unpatched
Signal Input 1— DC-coupled signal input accepting audio or CV signals
Signal Input 2— DC-coupled signal input accepting audio or CV signals
Gain 4— Sets how much the CV input affects the gain of channel 4; acts as manual gain when no CV is patched (normalized to +8V)
Signal Input 3— DC-coupled signal input accepting audio or CV signals
Signal Input 4— DC-coupled signal input accepting audio or CV signals
Signal Output 1— Modulated signal output. When unpatched, signal is routed to the next channel for daisy-chaining
Signal Output 2— Modulated signal output. When unpatched, signal is routed to the next channel for daisy-chaining
Signal Output 3— Modulated signal output. When unpatched, signal is routed to the next channel for daisy-chaining
Gain 1— Sets how much the CV input affects the gain of channel 1; acts as manual gain when no CV is patched (normalized to +8V)
Gain CV Amount 3— Controls gain modulation amount from CV input or direct gain control when CV input is unpatched
Signal Output 4— Modulated signal output. When unpatched, signal is routed to the next channel for daisy-chaining
Gain CV Amount 4— Controls gain modulation amount from CV input or direct gain control when CV input is unpatched
Gain CV Amount 1— Controls gain modulation amount from CV input or direct gain control when CV input is unpatched
Gain 3— Sets how much the CV input affects the gain of channel 3; acts as manual gain when no CV is patched (normalized to +8V)
Gain CV Amount 2— Controls gain modulation amount from CV input or direct gain control when CV input is unpatched
Gain 2— Sets how much the CV input affects the gain of channel 2; acts as manual gain when no CV is patched (normalized to +8V)
Output Indicator LED 3— Brightness represents signal level, color represents polarity (green = positive)
Output Indicator LED 4— Brightness represents signal level, color represents polarity (green = positive)
Gain Indicator LED 1— Brightness proportional to VCA gain on dB scale, off when signal is muted
Gain Indicator LED 2— Brightness proportional to VCA gain on dB scale, off when signal is muted
Offset 2— DC offset control for channel 2. Sets the base voltage when no input is patched.
Offset 3— DC offset control for channel 3. Sets the base voltage when no input is patched.
Offset 4— DC offset control for channel 4. Sets the base voltage when no input is patched.
Response Curve— Continuously variable between exponential and linear response curve
Response 3— Continuously variable response curve for channel 3 from exponential (CCW) to linear (CW)
Response 4— Continuously variable response curve for channel 4 from exponential (CCW) to linear (CW)

How-To Guides

Classic Envelope VCA
Bipolar LFO to Unipolar CV
Four-Oscillator Animated Mixer
Linear FM Depth Envelope
Random Filter Modulation Amount
Paired Submix Groups
Line-Level Signal Amplifier
Touch Ribbon Amplitude Control
Enveloped Modulation Depth

Explore the interactive Veils panel on BleepDex — tap any control to learn what it does.