The acoustics group studies the generation, propagation and reception of sound waves, as well as transducers and related signal processing, in a wide range of scenarios: sound for the communication between humans (speech and music); the influence of sound (noise) on humans and animals; and technical uses such as for remote sensing, designing materials and devices for noise abatement, biodiversity assessment and underwater communication networks.
The acoustics group offers a specialization in acoustics in the international 2-year master programme Electronic Systems Design as well as the 5-year ELSYS master program. Acoustics courses are also available to students from physics, building engineering, and other 5-year programs.
The fields of application include the energy, building, transport, environment, medicine, ICT sectors and art.
The acoustics group works closely with the SINTEF acoustics group through the Gemini centre "Acoustics Research Centre."
Some current projects in the acoustics group are:
Underwater Acoustic Communication between Nodes: part of CAMOS
Hybrid method for calculating the radiated sound from vibrating structures
Modeling of horn loudspeakers
For simulations of various underground storage scenarios of CO2, we are building a 2x4 m tank (1 m high), where we will build models and use ultrasonic sensors to monitor injection of CO2. The plan is to build realistic scaled model (scaling factor is approximately 1000) and use a matrix of several ultrasonic transducers to measure acoustic signals during injection of for instance air or CO2. In this set up the plan is to simulate various leakage scenarios.
GAMES (Geophysics and Applied Mathematics for Exploration and Safe Production)
This is a 5 years project supported by the Norwegian Research Council and several industry partners. The focus is on geophysical mapping and analysis of how the rocks offshore Norway has been uplifted and eroded. There will also be a strong focus on geophysical monitoring methods, and especially the use of permanent acoustic receiver arrays that are trenched into the seabed. Increased accuracy and predictability based on repeated seismic data is an important challenge. We will develop statistical machine learning techniques, and find ways to realistically constrain spatio-temporal statistical models by measured data as for instance geophysical data or well data. Including elastic wave propagation effects in the seismic imaging and inversion methods is another key topic in the project.
The acoustics group offers the content of a full master programme in acoustics as the " Acoustics " specialization in the international 2-year master programme entitled Electronic Systems Design as well as the 5-year ELSYS master programme. Including the contribution from other departments and faculties at NTNU, the following courses are proposed. Unless otherwise specified, each course counts for 7.5 ECTS.
- Acoustic remote sensing - TTT03 (3.75 ECTS)
- Acoustical measurement techniques - TTT4250
- Audio technology - TTT4170
- Building acoustics - TBA4167
- Environmental acoustics - TTT17 (3.75 ECTS)
- Machine Learning and Speech Technology – TTT4185
- Marine acoustics - TTT4175
- Marine acoustics - selected topics - TTT19 (3.75 ECTS)
- Medical Imaging Systems – MEDT4160
- Music acoustics and Technology - TTT4197
- Numerical acoustics - selected topics - TTT12 (3.75 ECTS)
- Physics and geophysics - TPG4100
- Speech technology - TTT4185
- Technical acoustics - TTT4180
- 3D Sound - TTT01 (3.75 ECTS, will be taught in Fall 2018)
In NTNU’s Music Technology programmes the acoustics group offers
- Music and Perception – TT2010 - BMUST
- Audio Technology and Room Acoustics – TT3010, Technology - MMUST
For PhD candidates the acoustics group proposes
- Room acoustics – TT8302
- Numerical methods in acoustics – TT8303
- Marine acoustics II – TT8305
- Theoretical acoustics – TT8307
- PhD seminars in acoustics – TT8308