Clear Speech
for your
Voice Agents

Voice AI breaks in the real world.
Background Noises. Side Talks. Mumbles.
We fix that.

Try it Free

Better Audio.
Better Outcomes.

57%

Reduction in WER

10ms

Processing Latency

90%

Fewer wasted LLM calls

Multiple voices.
Only the Primary speaker gets through.

Native in the language
you ship in.

First-party SDKs for Node, Python, Go, and Rust.

Pipecat

Python

from arctan import arctan_enhancer
await session.start(
agent=Assistant(),
room=ctx.room,
room_options=room_io.RoomOptions(
audio_input=room_io.AudioInputOptions(
noise_cancellation=arctan_enhancer.noise_canceller(
key=os.environ["ARCTAN_KEY"]
),
),
),
)

Every model.
Half the errors.

Only STT

With Arctan

AssemblyAI Universal-2

27.2%

14.3%

Cartesia Ink-Whisper

28.3%

13%

Deepgram Nova 3

24.1%

11.5%

Soniox STT Async v4

27.1%

8.9%

Speechmatics

25.9%

8.7%

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

Enterprise-grade security.
From Cloud to Local.

SOC 2 Type 2

ISO 27001

Ready to ship Voice AI
that works?

Get started with Arctan for free, no credit card required. Or book a 30-minute call with our team.

Get a Demo

Clear Speechfor yourVoice Agents

Better Audio.Better Outcomes.

Multiple voices.Only the Primary speaker gets through.

Native in the languageyou ship in.

Every model.Half the errors.

Enterprise-grade security.From Cloud to Local.