TC Helicon is a vocal technology company founded in 2000 as a joint venture between Denmark's TC Group and Canadian voice processing specialists IVL Technologies Ltd., the team behind Digitech's original Vocalist line of auto-harmony products. Headquartered in Victoria, British Columbia, TC Helicon was created with a singular focus on tools for the human voice. TC Group acquired full ownership in 2005, and the company later became part of Music Tribe.

TC Helicon is best known for the VoiceLive series of floor-based vocal processors, which combine real-time harmony generation, pitch correction, looping, and studio-quality effects like reverb, delay, and compression into performance-ready units. The VoiceLive 3 and VoiceLive 3 Extreme are flagship multi-effects processors offering deep integration between vocal and guitar effects, while the more compact VoiceLive Play targets singers who want preset-driven simplicity. The VoiceTone pedal series breaks individual vocal effects — harmony, tone shaping, reverb — into dedicated stompboxes. Other notable products include the Perform series of mic-stand-mounted processors, the VoiceSolo personal monitor speakers, and the Duplicator vocal doubling pedal.

Beyond the stage, TC Helicon expanded into gaming and streaming audio with the GoXLR, a 4-channel USB mixer with motorized faders, a MIDAS preamp, sound board, and built-in voice effects designed for live broadcasters. The GoXLR Mini offers a more compact alternative for streamers and podcasters. The brand occupies a unique position in the audio world as one of the few companies dedicated almost exclusively to vocal processing technology.

TC Helicon has 68 products cataloged on Equipboard, including Vocal Effects Processors, Harmonizer & Octave Effects Pedals, and Audio Interfaces. Their gear is featured by 163 artists, with the strongest followings in Rock, Electronic, and Pop. Notable users include Justin Vernon, Mike Scheidt, and Tash Sultana. Most TC Helicon products sit on the budget-friendly end of the spectrum.