Voice AI has become one of the most heavily funded corners of the artificial intelligence industry, and Iceland-based startup Treble is positioning itself at the infrastructure layer that the entire sector needs. The company announced $18 million in extended Series A funding led by Paladin Capital Group, with participation from existing backers KOMPAS VC, Frumtak Ventures, EIC, and Omega ehf.
Founded in 2020 by acoustic engineers Finnur Pind and Jesper Pedersen, Treble builds a physics-based simulation platform for voice AI. Rather than relying on scraped internet audio, the platform generates synthetic data through acoustic simulation, giving model developers a controlled environment to train and evaluate speech systems.
The company's total funding now exceeds $40 million, counting a $12 million raise in 2024. Customers include Amazon and Logitech, and earlier this year Treble partnered with Hugging Face to launch a benchmark for speech recognition models across realistic conditions.
Treble's platform spans three verticals: synthetic data generation for speech enhancement and noise suppression, model evaluation under varied acoustic conditions, and hardware design testing for headphones, speakers, and smart glasses. The company is particularly focused on wearables that could enable what co-founder Pind calls "superhuman hearing" — the ability to isolate specific sound sources in challenging environments.
The raise comes as voice AI applications multiply across customer support, meeting transcription, AI smart glasses, and robotics. Each of these use cases requires robust testing infrastructure that Treble aims to provide.
