Acoustics
Thanks to our extensive experience in acoustic design and noise control, we can identify and solve your noise problems.
We are very proud of our acoustics expertise, which is crucial for our leading position in industrial acoustics. Over the years, we have gathered experience from virtually all industries, which allows us to always choose the optimal and most cost-effective solution for you.
We translate theoretical acoustics into practical and cost-effective solutions for our customers’ specific needs. Our strength lies in managing the entire process, from needs analysis to implementation, while adhering to existing sound guarantees and meeting customer requirements and expectations. We can also deliver complete feasibility studies to base sound attenuation solutions on.”
To ensure that our products and solutions maintain the acoustic properties calculated by us, we can conduct sound measurements, both in the field and in our own sound lab. We can also check reduction ratios, insertion loss, sound absorption, and vibrations.
In the sound lab, we also work on product development and training for our staff. We also educate our customers so that you are well-informed about your acoustic issues and can be involved in the decisions made, as you know your reality best.
We always strive to deliver the most effective solution, based on cost, performance, and sustainability.”
Sound and vibration measurements
An acoustician’s primary tool is their ear. With a trained ear, one can get a good sense of the sound issues present in a space, what sounds are occurring, and which transmission paths exist. However, this is not sufficient if one is to truly address the sound problems. Therefore, we have an arsenal of sound measuring equipment, such as sound level meters, intensity probes, and accelerometers.”
Office measurements
In office environments, we conduct measurements of background levels, sound insulation, reverberation, and noise from installations. If necessary, we also investigate transmission paths and sound weak spots to assist with future projects and renovations.
After completing the measurements, we create a report to let the customer easily review our practical and feasible proposals for action without negatively impacting the space’s aesthetics. The report also includes the problems identified in relation to sound requirements or appropriate standards.
Noise
Machine noise
We work in control rooms and machine buildings where we conduct investigations of how the machines in the space transmit sound to the personnel, whether they are in the same room or adjacent rooms. We assess whether there are issues with structure-borne sound, flanking transmissions, or acoustically poor wall sections. The measurements can also be complemented with services for a complete feasibility study.
Tonal sources can be particularly stressful for staff and are sometimes very low-frequency, making them difficult to locate. We use sound and accelerometer measurements that assess these low frequencies and we can determine whether the levels are acceptable or not
Vibration measurements
Vibrations in structures can cause discomfort when touched, structure-borne sound, or sound radiation. We examine your situation to assess what needs to be isolated and how to do it. We can also analyze the measurements to help you understand the resonant behavior.
We have equipment for multi-axial and multi-channel (up to 4 channels) accelerometer measurements, as well as impact hammers, which can be used to determine frequency response functions and mobility of products and equipment.
External noise measurement
We conduct sound immissions measurements at specified points and sound emissions measurements of noisy sources. In these measurements, we follow the appropriate standards determined by us or the customer to obtain the necessary measurement values. We can also provide recommendations for suitable measures to reduce the levels. An example is when the noise source consists of, for instance, fans, and we perform airflow measurements at the time of testing to ensure that functionality is not affected. Furthermore, we can carry out the necessary steps to create a sound map/noise calculation, showing how the sound from the facility spreads, taking into account current directives and other buildings.”
Industry noise
When planning a new industrial construction, several pitfalls and recommendations need to be considered. HIAK can assist you indoors and outdoors to avoid future rework.
- Indoors: We recommend placement of machines, workstations, acoustic screens, ceiling panels, and more.
- Outdoors: We recommend the placement of barrier walls and inlets/outlets for fans, gas turbine installations, steam exhausts, and pressure relief valves, among others.
Analysis of acoustic reports/noise maps.
We take you from sound measurement or noise mapping to a proposal for action tailored to your needs, preferences, and conditions. Throughout the project, we maintain continuous dialogue to ensure that the measurements are sufficient or whether they need to be supplemented (potentially in areas beyond acoustics).
When sufficient measurements are made, appropriate measures are designed. Here, we often collaborate with previous acoustic consultants to access collected data not included in existing reports.
Using established calculation models, we determine how the measures should be designed and how they should be positioned to have the greatest possible effect.
Evaluation of acoustic products
We know what construction is needed for your specific situation and assist in choosing thicknesses, materials, and support structures. We can also suggest new solutions produced by us or by you. We have our own sound lab where we perform measurements on the products. Examples of such measurements include reduction ratio measurements, reverberation time measurements, pressure drop measurements (K-value) of vents, and duct measurements of sound attenuation concepts. If measurements that we cannot provide are needed, we can get in contact with other testing facilities.
Acoustics training
If you wish, we can develop training materials and conduct courses in acoustics for your staff. We offer standardized basic training or create customized courses that meet your specific needs now and/or in the future.”
