Sonicsmith is a boutique electronic instrument company based in Krakow, Poland, established in 2015 and officially registered in 2016. The company specializes in audio-controlled analog synthesizers — instruments that allow acoustic and electric audio sources to drive synth voices directly, without computers or digital protocols. Co-founder Brian Kaczynski, an American electronics engineer with a background in ASIC chip design, originated the Audio Controlled Oscillator technology that underpins the brand's products.

The lineup centers on a small family of audio-controlled instruments built around pitch and envelope tracking of an incoming audio signal. The ConVertor E1 is a Eurorack module that converts audio into analog control voltages and synthesizer voices, while the Squaver P1+ packages similar audio-to-synth conversion into a stompbox format aimed at guitarists, bassists, and other instrumentalists. The Modulator A1 extends the line with envelope and modulation tools designed to interface with the same audio-controlled approach.

Sonicsmith's reputation in the synth and pedal community is tied to this niche: turning any monophonic audio source into a control input for analog synthesis, bridging traditional instruments with modular and pedal-based signal chains.

Sonicsmith has 2 products cataloged on Equipboard, including Modular Synthesizers.