Job Description

“Room boundary sampling: the missing link between wave-based and geometric room models”

A postdoctoral research position is available in the KU Leuven Electrical Engineering Department (ESAT), in the frame of the ERC project “The Spatial Dynamics of Room Acoustics (SONORA)” coordinated by Prof. Toon van Waterschoot. The postdoc will be one of the key members of the ERC team, and will carry out fundamental research in the interdisciplinary field of signal processing, physical room acoustics, and computational acoustic modeling. The research will be executed in an international team of audio engineering researchers at the e-Media Lab and the Stadius Centre for Dynamical Systems, Signal Processing and Data Analytics of KU Leuven, and involves a strong collaboration with the lab of Dr. Enzo De Sena at Surrey University (UK). Initially a one-year position is offered, however it is anticipated that the position will be extended with a second and third year to achieve a deep involvement in the ERC project.

THE ERC “SONORA” PROJECT
The SONORA project aims to increase the general understanding of how complex sound scenes are impacted by the spatial dynamics of room acoustics. This knowledge is crucial in the design of signal processing algorithms for audio acquisition and reproduction problems in real-life situations, where moving sound sources and observers interact with room acoustics in a complicated manner.
A major part of the project will be devoted to the development of novel room acoustics models and to the unification of existing models. The room acoustics models developed in this project will be data-driven models with a physically motivated structure, and are expected to fill the existing gap between geometric and wave-based models. This will be achieved by formulating existing and novel models in a dictionary-based mathematical framework and introducing a new concept coined as the equivalent boundary model, aimed at relaxing the prior knowledge required on the physical room boundary.
A second part of the project will focus on the development of a protocol for measuring spatiotemporal sound fields. This protocol will be rooted in a novel sound field sampling theory which exploits the spatial sparsity of sound sources by invoking the compressed sensing paradigm.
Thirdly, novel signal processing algorithms capable of handling spatiotemporal sound fields will be designed. By employing recent advances in large-scale optimization and multidimensional scaling, fast and matrix-free algorithms will be obtained that do not require prior knowledge of the sound scene geometry.
The SONORA research results are anticipated to have a notable impact in various audio acquisition and reproduction problems, including acoustic signal enhancement, audio analysis, room inference, virtual acoustics, and spatial audio reproduction. These problems have many applications in speech, audio, and hearing technology, hence a significant benefit for industry and for technology end users is expected in the long run.


RESEARCH ENVIRONMENT
The e-Media Lab and the Stadius Centre are part of the Electrical Engineering (ESAT) Department at KU Leuven and host over 100 researchers. The audio engineering group headed by Prof. Toon van Waterschoot is a subgroup affiliated to both labs, in which signal processing research is carried out in the context of audio, speech, music, and acoustics applications. The audio engineering group currently hosts about 10 international PhD and postdoc researchers and participates in several nationally and internationally funded research projects, ranging from fundamental research to industry-funded applied research.

Audio engineering group: http://homes.esat.kuleuven.be/~tvanwate/index.html
e-Media Lab: http://www.kuleuven.be/emedia
Stadius Centre: http://www.esat.kuleuven.be/stadius

RESPONSIBILITIES
The postdoctoral researcher will
- carry out fundamental research on room acoustics modeling, more specifically on the unification of wave-based and geometric room models in the framework of room boundary sampling;
- monitor the work plan of her/his individual research project and make sure that milestones are achieved and deliverables are finalized in a timely manner;
- actively participate in research meetings with the other ERC team members;
- take part in the research meetings, seminars, etc. at the e-Media Lab and the Stadius Centre;
- assist in the supervision of MSc and PhD students;
- perform a limited amount of teaching activities (max. 3h per week).

PROFILE
- Candidates must hold a PhD degree in Engineering or Acoustics (or equivalent), and have research experience in signal processing and/or room acoustics (as shown by publications in relevant international journals and conference proceedings).
- Additional research experience in computational acoustic modeling (e.g. Boundary Element Method, Finite Element Method) is considered a strong asset.
- Experience with scientific computing in Matlab, Python, or Julia is required.
- Excellent proficiency in the English language is required, as well as good communication skills, both oral and written.

OFFER
- A high-level and exciting international research environment at one of Europe's top universities.
- A strong involvement in an ERC research project with high international visibility.
- A competitive salary.
- The possibility to participate in local as well as international courses, workshops and conferences.
- A one-year position with the possibility of extension for a second and third year.

INTERESTED?
For more information please contact Prof. Toon van Waterschoot <toon.vanwaterschoot@esat.kuleuven.be>.

Applications are to be submitted no later than February 4, 2018, via the online application tool (see link). Please submit:
1) a motivation letter with a statement of skills and research interests (max. 1 page)
2) a position statement summarizing your personal view on the research area of room acoustics modeling (max. 1 page)
3) a curriculum vitae, including publication list, transcripts and possibly GRE/TOEFL results
4) the names and contact information of 1-2 references

KU Leuven seeks to foster an environment where all talents can flourish, regardless of gender, age, cultural background, nationality or impairments.
If you have any questions relating to accessibility or support, please contact us at diversiteit.HR@kuleuven.be.

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