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Quality and Usability Lab2014_12_15_kocinski

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Binaural and ambisonic assessment of soundscapes

LOCATION: TEL Auditorium 1, Ernst-Reuter-Platz 7, 20th floor

Date/Time: 15.12.2014, 14:15-15:00

SPEAKER: Dr Jędrzej Kociński, Adam Mickiewicz University in Poznań, Poland


The higher levels of the auditory system still remain largely unexplained. Simple, artificial signals (used in lower levels investigations) seem to be inadequate because they do not reflect real perceptual processes. Therefore the concept of soundscape was introduced. However, research into soundscape is carried out without taking into account other senses. Furthermore, there is no doubt that at the higher levels of the nervous system all the information  from different senses is somehow merged and analyzed. The senses interact with each other, thus some information can be emphasized or ignored leading to completely different reactions or behavior. Therefore, the aim of the present study is an examination of the influence of visual information on soundscape assessment and verification how a human being processes audio-visual information coming from the surrounding environment.

However, there is a strong need to control the soundscape in the research, thus a dedicated presentation set was designed. Two different approaches were investigated, namely binaural and ambisonic to subjectively verify which one is assessed as more “natural” one.

During the presentation the concept of soundscape will be explained and the preliminary data will shown.


Jędrzej Kocinski, Ph.D.  (born in 1979) is a lecturer and researcher in Institute of Acoustics, Faculty of Physics, Adam Mickiewicz University in Poznan (AMU), Poland. He graduated from music school then he started to study physics. To merge this two areas he decided to write his master thesis (entitled “Spatial suppression and speech intelligibility”) in Institute of Acoustics, AMU. In 2007 he defended his Ph.D. entitled “Speech intelligibility enhancement using blind source separation” in which he showed that subjective measure of speech intelligibility is weakly reflected in objective measures (like SNR enhancement). Next, he got a grant from the National Science Centre, grant no. UMO-2011/03/B/HS6/03709 entitled “The influence of visual information on assessment of sound stimuli on the basis of psychophysical experiments”. He is the author or co-author of over a dozen scientific articles in the area of psychoacoustics, signal processing and room acoustics. He also teaches signal analysis, room and architectural acoustics as well as psychoacoustics and psychophysics.  




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