Contact Microphone

Ears is Mutable Instruments’ take on Tom Whitwell’s Mikrophonie module, it is a perfect match for physical synthesis modules like Rings or Elements, but it can also be the gateway between external audio sources and your modular system.

• Audio amplifier with 1M input impedance, up to 40dB of gain.
• Envelope follower with 3 preset attack and release times (adjustable by jumper).
• Gate detector with 3 preset sensitivity levels (adjustable by jumper) and +8V gate output.
• Three indicator LEDs: amplifier clipping (red), envelope follower level (white), gate detector activity (orange).
• Open-source hardware.

http://mutable-instruments.net/modules/ears