clir builds real-time AI that isolates the human voice — and turns it into apps people rely on every day: to understand the people around them, and to hear themselves think.
Our voice-isolation models run in real time on the phone in your pocket. What they do for you depends on what noise is taking from you.
Understand others, anywhere. Removes background noise from conversation and streams clean speech to your AirPods or hearing aids — live.
For people who hear, but don't understand →
The layer between quiet and actually working. Sound environments and calm structure for ADHD brains that already work in headphones.
For minds with 47 open tabs →No lab hardware, no cloud round-trips. Our models run on the device you already own.
Best-in-class separation of speech from background noise — clattering plates, traffic, chatter — with imperceptible delay.
Everything is processed locally on your iPhone. Nothing you say or hear leaves your phone. Privacy isn't a setting — it's the architecture.
Years of audio research, shipped as consumer apps. The compute in a modern smartphone outclasses any dedicated hearing hardware — we put it to work.
clir Technologies GmbH is an audio-AI company from Graz, Austria. We started with a simple observation: the human brain is brilliant at picking one voice out of a noisy room — until it isn't. Age, hearing loss, or an ADHD brain under open-office fire all break that filter.
So we built the filter as software. Thousands of people use it every day, and rate it 4.9 stars on the App Store.
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