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ACOUSTICS SERVICES

Marine Acoustics - solutions to noise and vibration problems:

  • external noise - pass-by tests to ISO14509 notified body approved for 2003/44/EC EC
  • engine, generator & thruster noise
  • air conditioning & boiler noise and vibration
  • hull & air borne sound, troublesome resonances
  • legal & installation advice.
  • underwater sound.

The first thing in a Stream Marine system is the design quality and attention to detail. Innovative design, lateral thinking, and integration of the different disciplines combine to give creative solutions to old and new noise problems. Bruel & Kjær measurement systems, Sony recording equipment and acoustic laboratory for analysis, are combined with experience and practical installation abilities.

Precision

Class 0 & 1 results

. 20Hz-20kHz plus ultra and infra sound where required
. 10dB to 135dB Linear dB levels across bands
. Ln and statistical analysis
. Reverberation RT60 and subjective analysis in internal spaces and studios
. Recorded audio (digital files) available for comparison and assessment
. Detailed reports and helpful practical recommendations

Analysis

Acoustic Laboratory - Noise is often very subjective, and it can be difficult to understand what all the numbers mean. In our lab you can actually hear the results of our recommendations and assess the difference between options in real sounds you can hear. Alternatively we can compile a calibrated audio CD and loan you a sound level meter, so that you can assess it in your own surroundings, or in the boat itself. We operate trailable workboats and can evaluate noise levels and sound quality in on-the-water situations.

. Engine Noise Reduction
. Construction Advice
. Generator Acoustic Enclosures
. Airconditioning Noise Reduction
. Legal Advice
. Pass-by Noise Testing to EC/2003/44 for RCD
. Underwater Sound Measurement
. Vibration & Resonance Control


Suffer from Noise?

Whatever your noise issue, we have the experience and the equipment to quieten it.
For advice and quotation please call 02089 336611

     
     
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