# Noizend > Noizend develops active noise control that cancels low-frequency noise (20–500 Hz) at the boundary of buildings, work sites and industrial facilities, using acoustic digital twins and predictive AI. Based in Sydney, Australia. Low-frequency noise travels further than any fence and passes through walls, so the usual fixes miss it. Noizend measures it, predicts it, and is building the technology to cancel it at the property boundary. Three products share one pipeline: Analyse (available first, turns a short, sparse microphone survey into a full 20–500 Hz noise map of a site), Predict (in development, forecasts boundary noise ahead of operations and weather), and Control (in development, active cancellation hardware at the site edge). ## Pages - [Home](https://www.noizend.com/): what low-frequency noise costs, how the technology works, applications (battery energy storage, data centres, traffic), the team. - [Noizend Analyse](https://www.noizend.com/analyse): the noise-mapping product. A sparse microphone survey becomes a defensible 20–500 Hz site map. - [For business](https://www.noizend.com/for-business): the operator's view. Planning approvals, operating hours, licence to operate; measure, predict and control on a site. - [For residents](https://www.noizend.com/for-residents): recognising low-frequency noise at home, how cancellation at the source works, and what residents can do right now. - [Horizon](https://www.noizend.com/horizon): the Noizend Shield roadmap. How IoT sensors, physics-informed AI and phase-matched speakers analyse, predict and cancel low-frequency noise, and where active control goes next (battery storage, data centres, road and air traffic, music venues, mining, ports and shipping, wind and renewables, water and wastewater). - [About](https://www.noizend.com/about): who Noizend is, a Sydney acoustics-technology company using physics-informed AI; the founders (Paul Monsted, George Tulloch) and backers (City of Sydney, NSW Government, UTS, NVIDIA Inception). - [For investors](https://www.noizend.com/for-investors): Noizend's mission, market opportunity, technology roadmap, traction and team, for those interested in investing. General information only, not an offer of securities. - [News](https://www.noizend.com/news-index): white papers, grants, partnerships and research milestones. - [Survey](https://www.noizend.com/survey): report a noise problem to Noizend. - [Contact](https://www.noizend.com/contact): get in touch. Business, residential or investment enquiries. ## Contact - Email: info@noizend.com - Sydney, Australia