Precision Aeroacoustic & Aerodynamic Testing — East Liberty, OH

Precision Aeroacoustic Testing

502-microphone array. <57 dBA noise floor. Real-time 3D sound mapping. North America’s most advanced aeroacoustic and aerodynamic testing environment delivering the data your program needs to make decisions with certainty.

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Trusted by: Automotive OEM programs | Tier 1 suppliers | EV development teams | Aerospace and advanced mobility programs
Facility bookings and program management by Goken America - your direct point of contact from inquiry to data delivery.
502+54
Microphone Array
<57dBA
Noise Floor @ 87 mph
5.0cm
Source Location Accuracy
192mph
Maximum Wind Speed
20sec
Condition Stabilization
Vehicle side profile — microphone array analysis at HALO Wind Tunnel
Why This Matters Now

The Questions Every NVH & Aero Lead Is Asking.

Wind noise is the #1 driver of perceived vehicle quality in modern cars. In Electric Vehicles, there is nothing left to mask it. Every gap, every seal, every panel edge becomes audible at highway speed. Identifying the aeroacoustic issues early can greatly enhance perceived quality.

Challenge — 01
You need physical test data your CAD tools can’t give you
CFD and simulation are valuable, but they don’t replace the precision of a world-class acoustic environment. Real wind, real surfaces, real data. That’s what your program needs before design freeze.
Challenge — 02
North America has no comparable aeroacoustic facility
Sending vehicles to Europe means weeks of lead time, IP export risk, and per-diem costs before a test begins. HALO eliminates that same country, same time zone, same-day encrypted data delivery.
Challenge — 03
EV programs are aeroacoustic programs
Powertrain noise is gone. Wind noise, road noise, and structural resonance are all that’s left. Every BEV, PHEV, and hybrid on your roadmap needs aeroacoustic validation. Testing early is the only risk-free path.
HALO Wind Tunnel test section — tall portrait with 502-microphone array
Test Chamber — Full Array
HALO Wind Tunnel — symmetric rear view, full microphone rig
502-Mic Configuration
HALO Wind Tunnel — angled rear wide shot
Test Session Active
HALO 12-meter turntable — centered alignment view
12m Turntable — 180° Rotation
HALO Wind Tunnel — front quarter vehicle positioning
Vehicle Positioning
Technical Specifications

The Measurement Precision Your
Program Demands.

This is what your chief engineers, NVH leads, and program managers need to evaluate a test facility - verified numbers, not marketing claims.

Available to external clients for aeroacoustics and wind-only testing: automotive OEMs, Tier 1 & Tier 2 suppliers, aerospace, advanced air mobility, and research.

502 + 54
External Array Microphones
Full-surround external array with top, front, and side coverage. 54 Interior Measurement Channels plus Aachen binaural heads for simultaneous exterior and interior acoustic analysis. Source location accuracy: 5.0 cm.
<57 dBA
Noise Floor at 87 mph
At 87 mph / 140 kph. Among the quietest aeroacoustic environments on Earth. Low enough to isolate door seals, glass edges, mirror housings, antenna bases - sources that disappear in noisier facilities.
3D Mapping
Real-Time Sound Source Mapping
Software generates a live 3D visual map of noise sources as testing runs. Your engineering team sees data forming in real-time - allowing immediate design decisions without waiting for a post-test report.
20 sec
Between-Run Stabilization Time
Fastest between-run cycle in North America. Automated test sequences advance to the next step automatically at 20-second stabilization — dramatically more configurations per session, more data per dollar invested.
180° Turntable
12-Meter Turntable Rotation
Full 180° yaw rotation on a 12-meter diameter turntable. Two access doorways for efficient vehicle loading under 30 minutes. Tests full-size passenger cars, SUVs, light trucks, and non-automotive objects.
192mph
Maximum Wind Speed (310 kph)
Variable nozzle: 25 m² for 250 kph or 18 m² for 310 kph. Heat exchanger maintains 10°C–50°C for thermal-acoustic combined testing. Full highway-speed envelope through performance and motorsport characterization.
HALO Wind Tunnel test section — tall portrait with 502-microphone array
Encrypted Same-Day Data Data writes continuously to a passcode-protected removable drive. You leave with it. Zero data retained at facility.
HALO Wind Tunnel — symmetric rear view, full microphone rig
Confidentiality by Architecture Badge-controlled zone access. Exclusive private bay, tools, surface plate, lift, kitchenette. No client overlap.
HALO Wind Tunnel — angled rear wide shot
Test Section Dimensions 3/4 open test section: 3m × 5m × 15m. 5 MW fan system, 8-meter diameter, 12 carbon fiber blades.
HALO 12-meter turntable — centered alignment view
105+ Years Combined Expertise PM, tunnel operator, and acoustic engineer dedicated to every session. Full pre-test planning and real-time support.
HALO Wind Tunnel control room - Goken engineer monitoring live aeroacoustic data during an active test session

The Engineering Team Behind Every Test Session.

Goken America manages and operates HALO Wind Tunnel. Every session - from pre-test planning through data delivery - is run by our engineering team. You walk in to make engineering decisions. Everything operational is already handled.

You get a dedicated program manager before day one
Your PM builds the full test plan in advance - yaw sweep configurations, speed points, thermal requirements, NDA logistics, and vehicle arrival protocol. Your team walks in ready to make engineering decisions, not administrative ones.
An acoustic engineer reads your data live, not post-session
A Goken acoustic engineer is present for every run, reading live beamforming maps as data forms. You see the noise source. You make the design call. Same day, same room.
OEM-standard IP protection, not facility-standard
Powertrain noise is gone. Wind noise, road noise, and structural resonance are all that’s left. Every BEV, PHEV, and hybrid on your roadmap needs aeroacoustic validation. Testing early is the only risk-free path.
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HALO Wind Tunnel control room — three engineers monitoring aeroacoustic test data in real-time
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Goken is a valuable partner in every aspect of the customer experience at the HALO Wind Tunnel. From pre-test planning and logistics through data quality and delivery, the entire team is focused on one goal: data that the customer can be confident in.

- HALO Wind Tunnel
Official Facility Statement
7AM – 4:30PM
Continuous testing, no mandatory breaks
4 Dedicated
PM + operator + acoustic engineer, your session only
Real-Time
3D noise map visible as tests run
Same Day
Encrypted drive leaves with you
Test Session Process

From First Call to Data in Hand.

Every detail is handled — from the first inquiry call through the moment your team leaves with results. Sessions book 1–6 months in advance. The earlier you reach out, the sooner we lock your window and begin planning.

01
Submit Inquiry
Fill the form. A program manager responds within one business day - discussing your test objectives, vehicle program, timeline, and slot availability.
Response: < 1 business day
02
Pre-Test Planning
Your dedicated PM builds a full test plan: configurations, yaw sweep steps, speed points, thermal requirements, NDA logistics, vehicle arrival protocol.
Book 1–6 months in advance
03
Test Day — Full Session
7:00 AM start, 4:30 PM end. Tunnel operator runs automated sequences. Acoustic engineer reads live 3D data. Your team makes engineering decisions in the room.
7:00 AM – 4:30 PM continuous
04
Data Delivery
Before you leave, your data is on an encrypted passcode-protected hard drive. Nothing retained at the facility. Post-processing support available on request.
Same-day encrypted delivery
HALO control room — two engineers monitoring aeroacoustic data streams, test in progress
The HALO Difference

Your Session. Your Data. Your Team in Control.

Every session is supported by a dedicated four-person expert team. Your acoustic engineer reads live beamforming maps as runs progress. Your program manager pre-loaded every test step the night before. You focus on engineering decisions. Everything else is handled.

7AM – 4:30PM
Continuous. No stops
4 Dedicated
PM + operator + engineer
Real-Time
3D noise map live
Same Day
Encrypted drive, yours
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Book Your Test Session

The Test That Is Critical for Your Perceived Quality.

Aeroacoustic testing at HALO is the difference between launching with confidence and finding wind noise in customer reviews. Sessions fill 1–6 months out. The right time to reach out is today.

High demand — sessions book 1–6 months in advance. If your program has a launch date, submit today to check current availability and secure your window.
Response in 1 business day — program manager assigned immediately
Complete IP protection — NDA, badge zones, same-day encrypted data
No obligation consultation — confirm fit before committing
Weekend sessions available — Saturday and Sunday can be arranged
All external programs welcome — OEMs, Tier 1/2, aerospace, research, motorsport
A Goken America program manager responds within 1 business day. HALO Wind Tunnel test sessions are booked and managed exclusively by Goken America.
Direct Contact
Adam Twitty – Director of Sales
For immediate scheduling inquiries, contact Adam directly through the Goken website
Contact via Goken
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