The future of noise is AI.
Noizend Shields: IoT sensors, AI-driven algorithms and phase-matched speakers to dynamically cancel low-frequency noise, scaling from a live music venue to an industrial site. This is where we're taking it.
Analyse, Predict, Control.
One pipeline.
Map the field
IoT sensor arrays map the sound field around a site in real time, capturing the low-frequency sound waves that walls and fences let straight through.
Model the twin
Physics-informed models reconstruct the sound field and forecast how noise propagates, an acoustic digital twin of the actual environment.
Cancel at the boundary
Phase-matched speakers emit active counter-signals, dynamically cancelling disruptive low-frequency noise at the edge of the space.
Where we are, and where this goes.
Noizend Analyse
A sparse microphone survey becomes a full 20–500 Hz noise map, ready for a regulator. The measurement layer the rest is built on.
Noizend Predict
The digital twin incorporates site operations and weather, forecasting boundary noise before it breaches, turning the map into a forecast.
Noizend Control
Phase-matched active cancellation at the boundary, the full Shield deployment, scaling from a single venue to an industrial site.
One technology, from the venue to the grid.
Battery storage
Isolate inverter, transformer and fan noise so storage can sit closer to homes, on the road to net zero.
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Compute
Contain chiller, fan and generator noise so data centres can sit closer to the grid and to people.
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Road and air
Hold road, rail and aircraft noise at the boundary, keeping traffic noise out of homes along busy corridors.
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Nightlife
Trap sound inside music venues and out of neighbouring streets, protecting the night-time economy.
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Pits and plant
Crushers, supply chain corridors and ventilation fans push low-frequency energy across the mine to regional towns.
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Wharves and freight
Berthed ships idle their engines overnight while reefer stacks and cranes hum beside harbourside homes.
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Wind and solar farms
Turbine blade-pass and inverter tones carry for kilometres across flat, quiet rural land.
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Treatment and pumping
Aeration blowers and pump stations run a steady 24/7 drone, often metres from the fence line.
Info →Storage wants to sit where the grid is, and the grid is near people.
Inverters, transformers and cooling fans give a big battery site a persistent low-frequency hum. It's the noise that pushes a BESS to the edge of the urban sprawl and stalls DA approval.
Analyse. A short survey maps the 20–500 Hz field across the site and out to the nearest homes.
Predict. The twin forecasts how switching and cooling load lift the boundary level through the night.
Control. Cancellation at the fence line lets the same site sit closer to the community, on the road to net zero.
Inverters and cooling, non-stop
Inverters, step up transformers and forced air cooling run continuously, radiating tonal, low-frequency energy in the range most BESS noise complaints are actually about.
Standard barriers don't reach it
Low-frequency sound travels furthest and diffracts around fence line screening and berms sized for higher frequencies. Distance alone doesn't solve it and neither does the acoustic wall most DAs specify.
Measure it, then target it
Analyse reconstructs the real noise field from our microphone survey, band by band, giving planners and operators evidence they can act on before Control targets cancellation at the boundary.
In practice: that usually starts before a DA is even lodged: a short Analyse survey during design gives an operator a defensible noise number to plan around, instead of finding out after commissioning that the site is over the limit.
↑ Back to topThe compute boom runs on 24/7 cooling.
Chillers, air handlers and standby generators run around the clock, and the new wave of AI data centres is landing far closer to housing than the last.
Analyse. Pin the hum to specific plant constraints, with evidence a council or board will accept.
Predict. Forecast the boundary level as load and cooling ramp, before residents do it for you.
Control. Hold the noise at the perimeter so expansion stays compliant.
Cooling that never switches off
Chillers, cooling towers and air handling units run continuously to keep racks cool, producing a steady low-frequency hum with no quiet period.
Closer to housing than ever
AI-era data centres draw far more power and need far more cooling than the previous generation and they're being sited closer to established housing to shorten fibre and grid runs.
Ground decisions in real data
Analyse maps how the hum actually propagates across a real site rather than relying on a generic acoustic model, so mitigation and community engagement are grounded in measurement, not assumption.
In practice: that means running Analyse alongside the environmental impact assessment, so cooling-plant noise is measured against the actual neighbourhood, not a generic setback distance.
↑ Back to topThe corridor never goes quiet.
Motorways, rail lines and flight paths push low-frequency noise into homes for kilometres, the part of noise that barriers and double glazing don't stop.
Analyse. Map the low-frequency field along the corridor and into the streets behind it.
Predict. Model how traffic volume, weather and time of day move the boundary level.
Control. Cancel the low end at the source's edge, not room by room in every house.
Every mode adds low end
Heavy vehicle engine and tyre noise, rail wheel-rail interaction, and aircraft engine noise all carry a strong low-frequency component that keeps radiating long after the vehicle has passed.
Glazing stops the low-frequency band
Barriers and double glazing cut mid- and high-frequency corridor noise well, but the low end bends around barriers and passes straight through glazing, which is why residents report noise that compliance monitoring doesn't capture.
Measure exposure, not one point
A distributed sensor array measures real low-frequency exposure along a corridor over time, building the evidence base that single-point compliance monitoring misses.
In practice: a corridor-scale Analyse deployment gives councils and transport agencies a real exposure map along a route, the kind of evidence that's hard to argue with in a planning objection either way.
↑ Back to topKeep the bass in the room.
A music venue's low end travels straight through walls into neighbouring flats, the complaint that shortens trading hours and threatens the licence.
Analyse. Measure exactly how much low-frequency energy leaves the building, and where.
Predict. Know the boundary level by set and system before the noise officer calls.
Control. Trap the bass at the venue's edge, protecting both the night-time economy and the neighbours.
Bass goes where sound can't
Subwoofers and bass heavy sound systems put most of their noise below 200 Hz, exactly the range that carries through a shared wall or floor into the apartment next door.
Soundproofing targets the wrong end
Standard soundproofing is tuned for mid and high frequencies. Bass wavelengths are long enough to shake a whole structure, so the usual fixes barely touch it and it's a major driver of noise complaints against licensed venues.
Target the band that's leaking
Noizend measures exactly what's leaking and at which frequencies, so operators can target the actual problem band instead of over-building generic soundproofing, protecting trading hours and the licence.
In practice: a single Analyse survey inside and outside the venue during a live show tells an operator exactly which frequencies are crossing the wall, turning a vague noise complaint into a specific, fixable problem.
↑ Back to topThe pit boundary is a noise boundary.
Crushers, draglines, ventilation fans and haul roads generate relentless low-frequency energy that carries across the mine to regional towns, the frequencies that passive measures and distance don't stop.
Analyse. A sparse survey maps the 20–500 Hz field across the site and out to the nearest homes.
Predict. The digital twin forecasts how nightly operations and weather push the boundary level up, before the complaint lands.
Control. Phase-matched cancellation at the loudest edges holds the hum inside the lease, protecting the licence to operate.
Production doesn't stop at night
Crushing and screening plant, draglines, ventilation fans and haul road traffic all generate continuous low-frequency noise, often running through the night to keep production moving.
Distance isn't the buffer it seems
Low-frequency doesn't attenuate with distance the way higher frequencies do and a ridge line doesn't stop it the way it stops line-of-sight noise, so the standard buffer-zone approach under-protects nearby towns.
Evidence across the mine boundary
A microphone array across the mine and surrounding town gives an evidence-grade picture of what's actually reaching residents, replacing generic modelling with real measured data for approvals and community response.
In practice: that means measuring across the mine boundary and the nearest town at once, so the mitigation plan is built around what residents actually experience, not just what the model at the fence line predicts.
↑ Back to topA working harbour never sleeps.
Berthed vessels idle auxiliary engines through the night, refrigerated container stacks hum around the clock and gantries work the wharf metres from harbourside apartments.
Analyse. Map the low-frequency field across the terminal and the residential foreshore.
Predict. Forecast the boundary level by berth, tide and cargo mix, so the loud nights are known in advance.
Control. Cancel the hum at the quay line, letting the port grow without pushing residents out.
24 Hour Operations
Auxiliary engines on berthed vessels, refrigerated container units, and crane and gantry machinery all run continuously, and none of it stops overnight the way road traffic does.
Housing keeps moving closer
Ports are increasingly surrounded by harbourside residential development, often only metres from the source, and low-frequency engine and machinery hum travels easily across open water with almost nothing to attenuate it.
See the whole terminal, not one point
Measuring the actual noise field around the terminal, not just at a single compliance point, shows operators and residents exactly where the exposure is worst and which equipment is driving it.
In practice: an Analyse deployment around a terminal during normal operations captures the real mix of vessel, reefer and gantry noise, rather than relying on manufacturer specifications for equipment that's rarely tested in combination.
↑ Back to topThe classic low-frequency dispute.
Blade-pass tones and amplitude modulation from turbines, and inverter noise from large solar farms, carry for kilometres across the flat, quiet rural land where these projects are built.
Analyse. Evidence-grade 20–500 Hz maps that stand up in a planning objection or a compliance review.
Predict. Model how wind speed and direction swing the boundary level at the nearest dwellings.
Control. Target the specific tones residents report, rather than curtailing the whole farm.
Blade-pass and inverter hum
Turbine blade-pass creates a rhythmic, tonal low-frequency signature and large solar farms add continuous inverter and transformer hum, both radiating across open, low-ambient-noise rural land.
Quiet land carries sound further
The same flat, quiet land that makes a site good for wind or solar has very little background noise to mask the hum, so it carries for kilometres and stays audible at night, when ambient noise usually drops the most.
A shared, defensible picture
Independent, physics-based measurement gives developers and neighbouring communities a shared picture of the actual noise field, evidence that holds up in a planning dispute instead of a modelled prediction that residents say doesn't match reality.
In practice: an independent Analyse survey run over several nights, capturing the conditions objectors and developers usually disagree about, gives both sides a measured record instead of dueling predictions.
↑ Back to topA steady drone at the fence line.
Aeration blowers, pumps and digesters at treatment plants run 24/7 at a constant low frequency, often on sites that were rural when they were built and are now surrounded by housing.
Analyse. Pin the hum to specific plant and specific bands with a short survey.
Predict. Forecast how process load and maintenance cycles change the boundary level.
Control. Cancel the constant tone at the perimeter without shutting the plant down.
Essential infrastructure, constant hum
Aeration blowers, high-capacity pumps and anaerobic digesters run continuously at a steady low frequency, essential infrastructure that can't simply be turned down or scheduled around residents.
The town grew around the plant
Many treatment plants were built on the edge of town decades ago and are now surrounded by housing as cities have grown around them, so the site now has to manage noise it was never designed to control.
Target the equipment, not the whole site
Measuring the real noise field lets operators target mitigation at the equipment and frequencies actually driving complaints, instead of retrofitting broad, expensive enclosures that may not even address the low end.
In practice: a short Analyse survey identifies which specific piece of plant (a blower, a pump, a digester) is actually driving the complaint, so the fix is targeted instead of a blanket, expensive enclosure.
↑ Back to topBarriers were built for the treble. The bass needs a different answer.
Fences, walls and earthworks can't stop noise below 200 Hz. The practical place to cancel the hum is the boundary of the site making it, measured, predicted, and actively cancelled. That's the horizon we're building toward.
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Reducing noise pollution and protecting people at home, at work, and in their community, using Physics AI.
© 2026 Noizend Pty Ltd · Sydney, Australia