Production grade. Built for all.
Bellweather builds audio tools for real sessions, real deadlines, and engineers who need software they can trust. From Pressure to Barometer, built to hold up.
Weather Station is our free desktop app for browsing, installing, and updating all Bellweather plugins.
Why we exist
Good enough is not a useful standard.
Bellweather came out of session work, not a feature roadmap. The tools are built to be used under pressure, measured honestly, and released only when they hold up in actual work. If it breaks the trust, it does not ship.
The Catalog
Tools that earn their place.
Barometer
Gain staging and loudness metering that stays out of the way
- Precision gain staging (-96 to +24 dB)
- Phase flip per channel with link
- Stereo width, balance, mono check, and channel solo
- LUFS metering (momentary, short-term, integrated)
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Pressure
Flagship compressor built for control, tone, and stability
- Five analog-modeled engines (VCA, FET, Opto, Dynamics, VariMu)
- One knob to dial in the compression - threshold, ratio, attack, release, and knee, all mapped
- 40 parameters with full automation support
- Oversampling up to 8x for tracking, 32x for offline renders
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Built to hold up. Tested to prove it.
Every release passes 1,000+ automated validations before it ships. The last thing you want to think about is whether it'll hold up in your session.
Transparency
From the Studio
Notes on what shipped, what we learned, and what's next.
Platform
Bellweather Audio Attest Is Public Source
Bellweather Audio Attest is a public, headless C++ proof layer for signed audio-regression references, detector lanes, and CI-verifiable render evidence.
Platform
Bellweather Audio Core Is Public Source
Bellweather Audio Core is an open-source C++ audio-core release, but it is also a timestamp: a public snapshot of how Bellweather is thinking about quality, proof, and reusable audio code right now.
Pressure
Five Voices, Measured: How Pressure's Compressor Engines Move Differently
A controlled engine-response snapshot shows that Pressure's five compressor voices do not merely carry different labels. They engage, release, and recover on measurably different timelines.
Start free. Upgrade when it earns it.
Barometer is free with no trial clock attached. Put it on a session, live with it for a bit, and decide whether Bellweather belongs in your workflow.