Pro-Tec Geosystems Pte Ltd provides professional On-Board Vessel Noise Survey Services in Singapore for shipyards, vessel owners, ship managers, offshore operators and marine contractors. Our service helps measure, assess and report vessel noise levels to support crew comfort, safe communication, acoustic performance, vessel handover, class review and marine compliance requirements.
An on-board vessel noise survey is a systematic assessment of sound levels in different vessel areas. It helps identify high-noise spaces, compare measured levels with applicable marine criteria and recommend practical control measures.
Noise on board vessels may come from main engines, generators, pumps, compressors, propulsion systems, thrusters, ventilation fans, HVAC systems, machinery spaces and deck operations. If not controlled, excessive vessel noise can affect communication, rest, concentration, crew comfort and safety.
Vessel noise monitoring is important because seafarers spend long hours working and resting on board. Excessive noise can disturb sleep, reduce comfort, affect speech communication and create unsafe working conditions in engine rooms, machinery areas and accommodation spaces.
Pro-Tec Geosystems conducts marine noise monitoring with reference to applicable standards, client requirements and class specifications.
The applicable criteria depend on vessel type, gross tonnage, flag requirement, class notation, owner specification and project scope.
| Standard / Guideline | Purpose |
|---|---|
| IMO Resolution MSC.337(91) | Code on Noise Levels on Board Ships |
| SOLAS Regulation II-1/3-12 | Protection against noise on board ships |
| ISO 2923 | Measurement of noise on board vessels |
| IEC 61672-1 | Sound level meter specification |
| IEC 60942 | Acoustic calibrator specification |
| ABS Crew Habitability Guides | Crew comfort and habitability assessment |
| MLC / ILO Maritime Labour Convention 2006 Title 3 | Accommodation and crew welfare, where applicable |
Pro-Tec Geosystems conducts ship noise monitoring at selected locations based on vessel layout, operating condition and client requirements.
| Vessel Area | Typical Locations |
|---|---|
| Navigation Areas | Wheelhouse, bridge wings, navigation spaces |
| Machinery Areas | Engine room, generator room, pump room, compressor room |
| Accommodation Areas | Cabins, hospital, mess room, recreation room |
| Control Areas | Engine control room, control room, offices |
| Service Areas | Galley, pantry, laundry, utility areas |
| Access Areas | Corridors, stairways, passageways |
| Deck Areas | Open deck and crew-accessible areas |
Noise levels can change depending on vessel speed, machinery operation, loading condition and operating mode. Measurements may be conducted during harbour condition, sea trial, normal service condition, 40%, 85% or 100% operating condition.
Results are commonly reported as LAeq dB(A). Where required, LCeq dB(C) and LCpeak dB(C) may also be measured for hearing protection or high-noise assessment.
| Room / Space | Noise Limit dB(A) | 40% LAeq | 85% LAeq | 100% LAeq |
|---|---|---|---|---|
| Wheelhouse | As applicable | Measured value | Measured value | Measured value |
| Cabin / Hospital | As applicable | Measured value | Measured value | Measured value |
| Mess Room | As applicable | Measured value | Measured value | Measured value |
| Engine Room | As applicable | Measured value | Measured value | Measured value |
| Galley / Pantry | As applicable | Measured value | Measured value | Measured value |
A professional on-board vessel noise survey report may include vessel particulars, survey objective, reference standards, instrument details, calibration details, operating conditions, measurement locations, measured sound levels, noise limits, result tables, noise maps, photographs, observations, conclusion and recommendations.
Marked layout drawings can also be included to help clients identify measurement points and high-noise areas.
Recommendations may include acoustic insulation improvement, machinery maintenance, resilient mounting, sealing gaps, acoustic treatment for doors or partitions, silencers, HVAC noise control, warning signage, restricted access and use of hearing protection in high-noise areas.
| Benefit | How It Helps |
|---|---|
| Crew Comfort | Supports better rest and safer living conditions |
| Compliance Support | Helps compare measured levels with applicable criteria |
| Clear Documentation | Useful for handover, sea trial and class review |
| Noise Source Review | Identifies high-noise spaces and possible causes |
| Practical Action Plan | Supports acoustic control and improvement |
Our monitoring systems combine precision instrumentation, wireless communication,and cloud-based technology to deliver reliable and accurate environmental data in real time.
It is a measurement and assessment of sound levels in different vessel spaces to identify high-noise areas and compare results with applicable criteria.
Shipyards, vessel owners, ship managers, offshore operators and marine contractors may need this service for sea trials, handover or class review.
Wheelhouse, engine room, generator room, cabins, hospital, mess room, recreation room, galley, corridors, stairways and deck areas.
Yes. Measurements can be conducted during sea trial, harbour condition or client-specified operating modes.
Typical areas include wheelhouse, bridge wings, engine control room, machinery spaces, generator rooms, cabins, hospitals, mess rooms, recreation rooms, galleys, corridors, stairways and deck areas.
Yes. Vessel noise mapping or marked layouts can be included when required.
The report will include observations and recommendations for control or further review.
Contact Pro-Tec Geosystems Pte Ltd with vessel details, layout and survey scope.
Need On-Board Vessel Noise Survey Services in Singapore? Contact Pro-Tec Geosystems Pte Ltd for professional ship noise survey Singapore, marine noise monitoring, vessel noise mapping and IMO MSC.337(91) noise survey support.