Treble, a startup based in Iceland, has raised $18 million in new funding. The round is an extension of its Series A funding.
Paladin Capital Group led the investment. Existing backers KOMPAS VC, Frumtak Ventures, EIC, and Omega ehf also took part.
The company was founded in 2020 by acoustic engineers Finnur Pind and Jesper Pedersen. It received a $12 million investment in 2024. With the new round, Treble has raised more than $40 million total.
What Treble Actually Builds
Treble makes a simulation platform for the voice AI industry. It serves model makers, robotics companies, and hardware makers.
The platform uses physics-based simulation instead of relying only on recorded audio data. Pind said most sound-related AI today is trained on recordings scraped from the internet.
"We believe that accurate physics simulation can be an alternative way to create data for sound," Pind told TechCrunch.
Treble offers synthetic data generation for tasks like speech enhancement, noise suppression, and model training. It also evaluates voice AI models under different conditions and reports the results back to AI labs.
Earlier this year, Treble partnered with Hugging Face. Together they launched a benchmark for speech recognition models tested across realistic sound conditions.
Hardware Testing and Future Plans
Treble also works with hardware companies. It helps headphone and speaker makers test products virtually before they are built.
This includes testing how a smart speaker understands voice commands depending on where the speaker sits in a room. The company has recently expanded into simulation testing for smart glasses and other AI devices.
Pind said he is interested in future devices that could give users enhanced hearing. He described a scenario where someone in a restaurant could choose to hear only people within a short distance.
Another example he gave was a seminar setting. A user could mute background noise from other people nearby.
Treble plans to grow its work in physical AI. This includes robotics, automotive, and drone companies that need sound-based functions.
Francois Ruether, VP of Paladin Capital Group, said Treble's simulation platform stands out because it works across multiple product types. He said the company's role will grow as it moves into more industries.
"Our thesis is that, as more products depend on understanding sound, this infrastructure becomes increasingly valuable across voice AI, wearables, robotics, and physical AI," Ruether said.
Ruether also noted that customers keep ownership of their own models and products. Treble provides the underlying simulation infrastructure rather than the end products themselves.
Amazon and Logitech are currently listed as customers of the platform. The company has not disclosed additional customer names.
Treble's total funding now stands at more than $40 million since its founding six years ago in Iceland.
