Arctan Eigen

Arctan Eigen is a blazingly fast and ultra low latency speech enhancer and noise canceller engineered specifically for ASR/STT with low word error rates enhancing voice agents to have seamless conversations with people operating in noisy and degraded environments.

It is available directly for integration through livekit, pipecat and C++ audio pipelines.

A license key is required to use the SDKRequest access

Benchmarks

Every model.
Half the errors.

Only STTWith Arctan

AssemblyAI Universal-2

27.2%

15.8%

Cartesia Ink-Whisper

28.3%

14.4%

Deepgram Nova 3

24.1%

12.7%

Soniox STT Async v4

27.1%

11.9%

Speechmatics

25.9%

11.7%

Tested on real-world voice agent calls with background noise, side-talk, and mumbles. Full methodology available on request.

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