What is it?

The SoundSniffer is a 3 channel mono preamplifier with separate circuitry for 3 common sound sensors: electret condenser mic, piezo (contact mic) and electromagnetic coil (such as guitar pickup). This simple device is sold as a mostly assembled kit - you'll have to put together the laser cut MDF box. Included in the kit is the preamp PCB and components, the sensors, cables and minijack plugs, and a laser cut box. The SoundSniffer is a useful utility for sound designers and recordists, instrument builders and live performers.

Why did you make it?

The SoundSniffer was designed to fit the various needs of people working with experimental audio. I'm a sound artist, instrument builder and interaction design / music tech educator, so regularly use coils, contact mics and electrets in projects. A preamp is useful for getting the best sound out of these sensors for further amplification or processing.

What makes it special?

Most preamps are dedicated to one or other type of sensor. This has specific circuitry for the different requirements of the sensors. It's simple, battery operated. You can very quickly start sensing sounds in different ways and listen to the results on a pair of headphones or plug into a recorder. Hold the inductor coil close to a digital device such as a laptop or smart phone and hear the electromagnetic noises that give forth.

Assembled Kit comes with Magnetic Piezo (a contact mic attached to a magnet and housed in a 3D printed enclosure), a Single Coil Pickup (hand wound coil around 3D printed bobbin, useful for instrument amplification as well as EM sound sniffing) and an electret condenser microphone (also housed in 3D printed enclosure).