Mutable Instruments Ears Variant | Sylph Modular BYXA White

4HP Eurorack Envelope Follower and Contact Microphone with White Panel inspired by Mutable Instruments Ears

BYXA White is a special white-panel edition of the Sylph Modular BYXA, an enhanced Mutable Instruments Ears variant for Eurorack systems. It combines a contact microphone, envelope follower and gate extractor in a compact 4HP format while offering a distinctive white front panel for systems built around lighter visual aesthetics.

The module converts audio signals into useful control voltages and gates, allowing external instruments, microphones, percussion and acoustic objects to become modulation sources within a Eurorack system. When no signal is connected, the built-in piezo contact microphone can be used directly by tapping, scratching or interacting with nearby surfaces to generate envelopes and trigger events.

Like the standard BYXA, this version features front-panel controls for gate threshold, attack time and decay time, providing fast access to performance-critical parameters. Every module is assembled, calibrated and tested individually by Sylph Modular.

Features of the Mutable Instruments Ears variant

• Envelope follower
• Gate extractor
• Built-in piezo contact microphone
• External audio input
• Front-panel gate threshold selection
• Front-panel attack control
• Front-panel decay control
• Audio pass-through output
• CV and gate generation
• White aluminum front panel

Why BYXA White?

BYXA White offers the same functionality as the standard BYXA while providing an alternative visual style for Eurorack systems. It transforms external audio and physical interaction into modulation sources while keeping essential controls directly accessible from the front panel.

Specifications

• HP: 4
• Depth: 25mm
• Power: 5 mA +12V / 5 mA -12V

Links

• Sylph Modular BYXA White on Modular Grid
• Original Ears Manual

Related Eurorack Modules

• uMarbles – generative CV processor
• Tides – function generator
• Kinks – utility processor
• Links – signal utility
• uFrames – keyframing sequencer
• Corpusculum – physical modelling voice