News - Luleå University of Technology

Sound waves are tested for degradation of PFAS

Researchers in Waste Science and Technology at Luleå University of Technology are testing various techniques for the degradation of the toxic substance PFAS. Researchers within Engineering Acoustics investigates if hydrodynamic and acoustic cavitation can give an efficient degradation of PFAS.

Environmentally friendly new method for washing clothes

Örjan Johansson, professor in Engineering Acoustics at Luleå University of Technolgy, will in collaboration with the company Ozoneair try to develop a completely new and perhaps revolutionary method for washing. By combining ozone and ultrasound in a washing ball, the idea is to release "superpowers" that make the laundry extra clean in an environmentally friendly way.

In the media: Research at LTU can make the car tires of the future quieter

"Tires sound and can be disruptive. Winter tires are debated and we have worked a lot with these." says Örjan Johansson who is a professor of technical acoustics at LTU.

In the media: Ultrasound + juice = delicious?

Örjan Johansson, professor in Engineering Acoustics at Luleå University of Technology, is currently working on tests where ultrasound is "pushed" towards fiber in juice - you want to get better taste and retain nutrients.

In the media: Real sound in virtual reality

Technology from the gaming world provides new opportunities to present realistic sound examples in community building projects.

New acoustic lab for testing winter tires

The sound from the contact between the tire and the roadway is perceived inside the car as a source of irritation and a disturbance for coversations. Tire noise is a major part of the car's overall sound image and entails costly control measures on the part of the community.

Fredrik Ljunggren, Professor in Engineering Acoustics

Fredrik Ljunggren's great interest in sound gained momentum when he, as a fifteen-year-old, bought his first stereo system. Today, his driving force is to create better sound environments in tall wooden house structures, both for the residents and for the sake of the environment.

In the media: VR-based tools for designing good sound environments

Technology from the gaming world creates new opportunities in community planning and community building. In its gaming engine-based solution, TyrEngine uses Tyrén's advanced computer game technology to create virtual environments in VR.

In the media: Interview with Arne Nykänen, Technical acoustics

Luleå University of Technology and consulting firm Tyréns want to take the architects' model building to the next level by letting decision makers listen to how rooms sound before the buildings are in place. With modern VR technology and more ambitious acoustic modeling, assistant acoustics professor Arne Nykänen is building technology in sound engines - from computer games.

In the media: New rules are needed against noise from neighbors

The research project "AkuTimber" at LTU is now working to develop a new measure for step sound, which should be in line with what residents experience.

The sound in our everyday lives - how are we affected? Örjan Johansson

Örjan Johansson is new professor of Engineering Acoustics at Luleå University of Technology. He held his inaugural lecture in Vetenskapens hus on December 5, 2018.

In the media: Research on musicians' participation can prevent hearing loss

Arne Nykänen, a researcher at Luleå University of Technology, will study how the monitors can be used to reduce the risk of hearing impairment in musicians, audience and hookers.

Hear the audio environment before it is available

Arne Nykänen, Associate Professor of Engineering Acoustics at Luleå University of Technology, is working on a new project to develop sound for virtual 3D environments. The research will improve the tools available to understand how sound in buildings is perceived and affected by environment and architecture.

In the media: Designed sound, safer drivers

The sound when a bonnet slamming can be designed to give an exclusive feel. With the help of vehicle acoustics, you can also direct the driver's attention ahead and increase road safety.

Ultrasound streamlines metal processing

Researchers in Engineering Acoustics and Process Metallurgy at Luleå University of Technology are using ultrasonic cavitation to streamline and speed up the leaching process in the mining industry. Leaching is a hydrometallurgical technique that converts metals or minerals into soluble salts in aqueous media.

In the media: Crunching sound from snow

Professor Anders Ågren in Swedish Radio

3D sound systems in future cars

André Lundkvist, researcher in Engineering Acoustics at Luleå University of Technology, has studied how better placement of sound sources and the use of vibration can increase motorists' driving performance and safety.

In the media: Why water sounds different

Why is there a different sound while pouring hot or cold water in a mug? We ask Anders Agren, Professor in Engineering Acoustics at Luleå University of Technology.

Cheaper and finer paper with ultrasound

Researchers in Engineering Acoustics at Luleå University of Technology are working to reduce the energy consumption in the production of paper. With the help of ultrasound the process can become more energy efficient and increase the quality of the paper produced.

Alumnus became honorary doctor

Birgitta Olofsson, Vice CEO at Tyréns, belongs to the first batch of students graduated from the Master Programme in Civil Engineering 1982 at Luleå University of Technology. She has played a significant role in enabling more research on different subjects at university.

Gamification of research results in safer mine

Researchers at Luleå University of Technology will be using the same kind of thinking that in the gaming world to help the mining industry to better teach safety and reduce injuries. Research is conducted in close cooperation with the northern Swedish game developer Zordix with support from VINNOVA Research & Grow and with the University as co-sponsors.

Sweet music for microbes

In a new research project, researchers from Luleå University of Technology will investigate how microorganisms in biochemical processes reacts to different sound; audible sound and ultrasound. This is a unique experiment involving two research subjects at the university, Biochemical Process Engineering and Engineering Acoustics.

Poor telephone sound can affect learning

In a new research project at Luleå University of Technology, in collaboration with the telecom company Ericsson, and with funding from the Foundation for Strategic Research, the digital audio and learning are studied. The research question is whether defects in digital audio transmission for telephony and distance-bridging technologies such as distance learning, may impair the ability to remember what was said.

Develops competence at Volvo Cars

Luleå University of Technology develops the competence for some 50 engineers at Volvo Cars Center NVH (Noise, Vibration and Harshness). The Acoustics at Volvo Cars now will learn more about psycho-acoustic models and listening test. It's about how to effectively predict how to experience sound in cars. The program will run during September and October.

About sound and noise

At a popular science lecture in the House of Science Roger Johnsson, associate professor at lulea University of Technology, lectured on vehicle acoustics for the lunch guests. There were a lot of cars biggest source of noise, the tires, and its properties.

Detects squeaks and rattles in the car

A new test track to track squeaking and rattling sounds in new car models have been developed by researchers at Luleå University of Technology. The track is currently used to test leading German and Chinese car brands.

Measures the acoustics at the Ice Music

Luleå University of Technology initiated a collaboration with Ice Music, Swedish Lapland and perform as a first step acoustic measurements with starting pistol shot in its ice concert hall on Gültzauudden. The intention is to find out how sound can be managed in a room off ice to thereby optimize the musical experience for both audience and performers.

Silent electric car - goal of audio scientists

Scientists at Luleå University of Technology studies the source of noise in electric cars and how noise can be suppressed so as not to be distracting for the driver

Railtraffic with lubricated tracks

In a new interdisciplinary research project at Luleå University of Technology positive effects of lubricating the rails is tested. The research will continue for two years and is conducted in cooperation with, among others, Swedish Transport Authority "Trafikverket" and LKAB. It is expected to reduce costs by reducing friction and wear on the tracks and wheels, as well as to reduce the noise from the trains rampage.

Best PhD Supervisor 2012

Roger Johnson from the Department of Civil, Environmental and Natural resources engineering have been awarded the prize as the year's supervisor. The price is SEK 10 000 and aims to reward distinguished instructors in postgraduate education and it is students who nominated their supervisors.

Sounds in cars for improved safety, communication and comfort

In a new project "3D sound design" at Luleå University of Technology, scientists from several disciplines are to develop information systems for cars, in cooperation with the automotive company Volvo Cars. Acousticians, psychologists, musicians, composers and designers are going to collaborate and develop systems such as can warn drivers of dangers such as moose or pedestrian near the car.

High-quality artistry and acoustics with new digital transmission technology

Now the world are given the opportunity to take advantage of the combination of high-quality artistry and acoustics at Acusticum, through new digital transfer technology developed in cooperation between LTU, Studio Acusticum and the County Council.

Research reduces disruptions in houses made of wood

Acoustics in the classroom tricky for students with hearing impairment

Responsible for constructions get help with sound issues

Designing sound for different products

Published:9 January 2014

Updated: 27 January 2021

By:Örjan Johansson

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