mutable-instruments/ears

Ears

Mutable Instruments

A contact-microphone front-end and envelope follower with built-in piezo mic, high-impedance audio input, amplified audio output, envelope CV output, and gate output.916

Capabilities 3

Envelope Followerenvelope-follower
Envelope CV output follows the amplitude of whichever source is active (contact mic or external input); response time set by back-panel jumper.916
Gate Sourcegate-source
Gate output emits +8V when the envelope follower level exceeds the selected threshold; sensitivity set by back-panel jumper.916
Microphonemicrophone
916

Jacks 4 (1 in / 3 out)

NameSignalVoltageDescription
Inputs (1)
Audio INaudioHigh-impedance external audio input; when a cable is inserted, the built-in contact microphone is disconnected.916
Outputs (3)
Audio OUTaudioAmplified audio output from the active input source; a red LED indicates when clipping occurs.916
Envelope CV OUTcvOutputs the envelope follower signal tracking the amplitude of the input; a white LED reflects the current envelope level.916
Gate OUTgate≤8VFires a +8V gate signal when the envelope follower level crosses a threshold; gate activity is shown by an orange LED.916

Parameters 1

NameTypeRangeBehavior
Gainknob0dB – 40dBSets the amplification level for the active input (built-in contact mic or external), covering line-level to ultra-low-signal sources.916

Firmware history 0 versions

No firmware history recorded.

References 2

  1. [916]
    Ears Manual (full)manual
    verified 2026-05-24
  2. [917]
    Mutable Instruments Ears product pageproduct_page
    verified 2026-05-24