Walrus Audio Canvas Expression Pedal Gray

Canvas Expression reimagines what an expression pedal can be: two independently configurable outputs capable of Expression, Switch, or Control Voltage, plus deep MIDI control over products via 1/8” TRS output and USB-C. Canvas Expression isn’t just another expression pedal. It’s a command center for manipulating parameters that adapts to nearly any pedalboard, synth, or desktop setup.

Whether you're sweeping delay repeats, switching presets mid-song, controlling modular synths, or automating plugin parameters inside your DAW, Canvas Expression gives you flexible control without compromise. Configure every output exactly how your rig demands and save yourself from carrying multiple dedicated controllers. Traditional expression pedals do one job. Canvas Expression was designed to do nearly all of them.

Dual Independent Outputs

Each of its two independent outputs can function as a standard expression output, a programmable switch output, or a control voltage (CV) source, allowing a single pedal to control multiple devices across nearly any setup. Whether you're connecting to pedals, amplifiers, synthesizers, modular systems, or your computer, Canvas Expression adapts to the gear you're using instead of forcing your rig to work around it.

Customize Your Way

Built-in automatic expression wiring detection removes the guesswork of compatibility, while adjustable tapers, sweep direction, switching thresholds, and output behavior let you fine-tune exactly how your expression signals respond to the movement of the treadle.

MIDI Control

Beyond analog control, Canvas Expression becomes a powerful MIDI controller capable of sending up to 16 independently assignable MIDI messages over both USB-C and TRS MIDI. Using the Canvas Expression web editor at https://canvasexp.walrusaudio.io, assign control to pedals, processors, DAWs, virtual instruments, and plugins with smooth, high-resolution parameter sweeps or instant preset changes.

With customizable treadle tension, onboard configuration, and an intuitive web editor for advanced setup, Canvas Expression is designed to become the central control point for virtually any modern rig.

Walrus Audio Canvas Expression Pedal Gray Features:

Dual independent outputs can be configured separately as Expression, Switch, or CV outputs
Control two different devices simultaneously from a single expression pedal
Universal compatibility with TRS, RTS, and TS resistance-based expression devices
Automatic wiring detection simplifies setup across a wide range of gear
Adjustable tapers and selectable forward or reverse sweep direction for customized response
Programmable switch control with momentary or latching operation and flexible trigger points
Control amp channels, pedal functions, presets, and other switch-enabled devices
Generate CV signals with selectable 0–5V or 0–3.3V ranges for synths and Eurorack systems
Advanced MIDI control with up to 16 assignable CC and Program Change messages via TRS MIDI and USB MIDI
Powerful web editor for configuring outputs, MIDI assignments, switching functions, and performance settings

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Walrus Audio Canvas Expression Pedal Gray Specifications

Walrus Audio Canvas Expression Pedal Gray Specifications
Product Specifications	Connectivity: Variable operation TRS Output A and Output B for expression, switch, and control voltage output TRS Output: Voltage divider using a 50 k O potentiometer TS Output: Variable resistor with selectable total resistances - 10 k O, 25 k O, and 50 k O Switch Output: Grounds tip to sleeve, ring to sleeve, or tip and ring to sleeve Control Voltage Output: Selectable CV voltage ranges 0-3.3 V and 0-5 V MIDI: 1/8” TRS Type A MIDI In and MIDI Out USB-C: MIDI In and MIDI Out and firmware updates via walrusaudio.io Power Requirement: Isolated 9 VDC, center-negative, 300 mA minimum Dimensions (H x W x D): 1.9" x 3.6" x 8.9" / 48 x 91 x 225 mm Weight: 2.2 lbs