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Case Studies

Real projects. Quantified outcomes. Proven to de-risk acoustic investments across ASEAN with Class 1 measurements, building acoustics toolkits, and noise-mapping workflows.

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Featured Case Studies

Grade-A Office: Open-Plan Speech Privacy Fix (Bangkok)

An A-grade office reported high speech intelligibility across work zones. Using Class 1 logging, octave analysis, and targeted ceiling/absorption tuning, we validated design changes and closed out with objective privacy metrics aligned to global benchmarks.

  • −6 to −8 dB(A) LAeq in focus zones
  • STI reduced from 0.55 → 0.40
  • Sign-off in 12 business days
Tags: Building Acoustics • Class 1 SLMs • Building Toolkit

Metro Extension: Night-Time Construction Compliance (Kuala Lumpur)

Contractor required night-work monitoring near residences. We deployed remote Class 1 meters with alerts and produced defensible reports for authorities, enabling schedule adherence without violations.

  • 0 compliance breaches across 9 weeks
  • Real-time alerts < 60 s latency
  • Reporting cycle reduced by 50%
Tags: Transportation • Environmental • Class 1 SLMs

University Dorms: Wall/Floor Upgrades Validation (Singapore)

Post-retrofit, the client needed proof of acoustic uplift. Source/receiver room tests with calibrated sources confirmed targets and supported phased investment decisions.

  • DnT,w improvement +7 dB
  • Impact noise Ln,w improved −9 dB
  • Rework avoided on 18 rooms
Tags: Education • Building Toolkit • Sound Sources

Hospitals: Nurse Station Quieting (Ho Chi Minh City)

Elevated background noise impacted staff fatigue. We profiled spectral contributors and optimized finishes and masking strategy.

  • LAeq −5 dB(A) daytime
  • 22% reduction in peak exceedances
  • Patient survey “quiet at night” +18 pts
Tags: Healthcare • Class 1 SLMs • Building Toolkit

Industrial Plant: Tonal Noise Mitigation (Rayong)

Community complaints traced to a tonal fan component. Narrowband analysis isolated the frequency; targeted treatment resolved the issue with minimal CapEx.

  • Tonal prominence removed (ΔLta < criterion)
  • Complaints dropped to zero in 30 days
  • Avoided enclosure cost > US$75k
Tags: Industrial • Class 1 SLMs

Airport Access Road: Barrier Optimization via Modeling (Manila)

Pre-build modeling + validation measurements de-risked barrier height and placement decisions.

  • Achieved ≥ −8 dB(A) at façades
  • Material cost optimized −14%
  • Authority approval on first submission
Tags: Transportation • Noise Mapping Software

Shopping Mall: HVAC Low-Frequency Control (Jakarta)

LF hum reduced shopper dwell time. Source identification + isolation tuning delivered perceptible comfort gains.

  • 31.5–63 Hz bands −4 to −6 dB
  • Customer satisfaction +12 pts
  • Contractor rework cycle −40%
Tags: Building Acoustics • Vibration/Structure-borne

Residential Tower: Façade Acoustic Assurance (Bangkok)

Sales team needed transparent evidence for premium units near a busy road. Pre-handover façade tests substantiated marketing claims.

  • External-to-internal LAeq reduction ≥ 28 dB
  • 100% units passed acceptance on first test
  • Post-handover defects −35%
Tags: Building Acoustics • Sound Sources • Class 1 SLMs

Smart Factory: Alarm Audibility & Zoning (Penang)

Overlapping alarms caused risk. Spectrum mapping and audibility verification re-zoned signals with standards alignment.

  • False alarms −60%
  • Mean response time −22%
  • OSHA/EN audibility thresholds met
Tags: Industrial • Class 1 SLMs

University Auditorium: Speech Clarity Without Over-Treating (Hanoi)

Balanced reverberation and early reflections improved speech/music multipurpose use, validated with on-site measurements.

  • STI 0.45 → 0.62 at rear seats
  • RT60 tuned to 1.1–1.3 s @ 500 Hz
  • CapEx avoided by design-first approach
Tags: Education • Building Toolkit • Sound Sources

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