ISAAR 2017‘Adaptive Processes in Hearing’

Friday 08 Sep 17

Contact

Sébastien Santurette
Assistant Professor
DTU Electrical Engineering
+45 45 25 39 52

Contact

Torsten Dau
Professor
DTU Electrical Engineering
+45 45 25 39 77
Nearly two hundred professional researchers, scientists, and PhD students from all over the world travelled to Nyborg, Denmark in order to participate in the sixth International Symposium on Auditory and Audiological Research. This year’s theme was ‘Adaptive Processes in Hearing.’

On August 23-25, scientists in neurocience, audiology, psycoliogy and professionals from the hearing industy met to give lectures, discuss posters and talk about the topic of this year which the organizers from Hearing Systems and the board members had prepared.

Similar to earlier Danavox Symposia, ISAAR focuses on a few major topics of broad interest and highlights current activities in the different disciplines. This time the focus was on different perspectives on adaptive processes in hearing. 31 talks and 56 posters were presented during these three days in Nyborg. There were many different presentations, test results and conclusions circulating which both impressed and inspired the other participants.

Tobias Moser, University of Göttingen Medical Center, Germany held the talk: 'Hearing the Light': Optogenic Stimulation of the Auditory Nerve' and showed how cells can be made genetically light-sensitive to stimulate the auditory nerve.

When hearing fails, speech comprehension can be restored by auditory prostheses. However, sound coding with current prostheses, based on electrical stimulation of the auditory nerves, has limited frequency resolution due to broad current spread. He and his research group aim to improve frequency and intensity resolution of cochlear implant coding by establishing spatially confined optical stimulation of spiral ganglion neurons (SGN’s)

 

Jaques Grange, University’s School of Psychology Cardiff University, held a talk: Turn an ear to hear'. CI (cochlear implant) users can use head orientation to improve their intelligibility of speech in noisy social settings. Their study showed that cochlear implant listeners in a noisy situation benefit from facing slightly away from the person they are listening to, turning one ear towards the speech. Actually being able to hear just a few decibels more by turning toward the talker can make the whole difference in hearing.

"Never face someone in a conversation"
Laurel Carney

Laurel Carney, Biomedical Engineering & Neuroscience, University of Rochester, USA gave a talk about modeling midbrain responses to simultaneous speech. Through computer modeling it is possible to simulate background noise, different degrees of hearing loss, read the changes and decode the neural information in response to sound fluctuations. This work may be important for the development of hearing aids for listening in background noise.

Caption:”Never face someone in a conversation," Laurel Carney (leftmost) said after attending the talk by Jacques Grange Cardiff University (to her right) 'Turn an ear to hear'. Here with Lars Bramsløw from Eriksholm Research Centre who was very impressed by his presentation and Jeremy Marozeau, DTU Hearing Systems.

The scientists were also fascinated by the talk by Owen Brimijoin from the Scottish Section of the MRC Institute of Hearing, Glasgow "Parametric measurements of natural conversation behavior reveal effects of background noise level on speech, movement and gaze." By using head trackings, it is actually possible to figure out in which direction people will turn their heads.

In the afternoon there was a chance to study each other's research during the poster sessions. After each oral presentation there was also the opportunity to ask questions to the scientists.

 

 

 

Jakob Christensen-Dalsgaard was especially impressed by the talk by Tobias Moser 'Hearing the light´.
“It was absolutely spectacular. You can insert a new gene coding for a light sensitive channel into the auditory nerve and use light pulses instead of the electrical stimulation used in CI. The downside is that it requires genetic engineering, but it is a fascinating development ," Jakob Christensen-Dalsgaard said, and Ture Andersen agreed:
“It's fascinating if you can do that. Then we are one step further increasing  frequency resolution of the stimulation."


Between the many interesting lectures and talks there were opportunities to discuss the topics and network in the break in the nice surroundings at Nyborg Strand. ISAAR is a great opportunity to for young scientists to approach more experienced researchers and vice versa.

 

 


Andreu Parades-Gallardo,Hearing Systems DTU, presented "The role of temporal cues on a voluntary stream segregation in cochlear implant users". Results showed that performance increased with rate differences and sequence length, suggesting that coclear implant users can rely on temporal cues to segregate sounds and that this percept builds up over time.Several other researchers expressed their impression of the project and of how many test subjects the research group had managed.


Sébastien Santurette, who has organized the program and Sarah Verhulst from Ghent University, Belgium, who received her PhD at DTU:
“I am very impressed by the organization of this conference” Sarah Verhulst said,
"There are some good discussions and this is one of few occasions where the industry and the basic research come together."

 

 

Several researchers from the The Cognitive Control of a Hearing Aid (COCOHA) Horizon 2020 project which takes part in different countries had the had the opportunity to meet and discuss their projects. Here it is (leftmost) Antoine Favre-Félix (DTU /Eriksholm Research Centre,Daniel Wong (Ecole Normale Paris) , Jonatan Marcher-Rørsted and Søren Fuglsang (DTU) 

Graphic design: Helene Ingerslev
Photos: Torben Poulsen, Eva Helena Andersen and Niclas Janßen


Links:

Read more about Laurel Carneys work here 

Read the article from her stay at DTU here

Jaques Grange ‘Turn an ear to hear’ watch the video

Tobias Moser ‘Hearing the Light’ Inner Ear Lab Göttingen

ISAAR International Symposium on Auditory and Audiological Research, formerly known as Danavox Symposium was founded in 1968. It takes place every second year. The symposium is organized by the Danavox Jubilee Foundation and supported by GN Resound. The foundation is managed by a board of scientific specialists within hearing research, independent of GN ReSound.
Read more and see all abstracts on
www.isaar.eu. This year seventeen different countries were represented.
The next ISAAR Symposium will be held in 2019 in at Hotel Nyborg Strand, Denmark; the topic is still open

.

Presenters from the Hearing Systems research group and affiliates
Talks:
Andreu Paredes-Gallardo
- Hearing Systems, DTU
The role of temporal cues on voluntary stream segregation in cochlear implant users
Andreu Paredes-Gallardo*, Sara M. K. Madsen, Torsten Dau, Jeremy Marozeau - Hearing Systems, DTU

Jens Hjortkjær
- Hearing Systems, DTU
Dynamics of cortical oscillations during an auditory N-back task
Jonatan Märcher-Rørsted, Søren Asp FuglsangS, Torsten Dau - Hearing Systems, DTU
Jens Hjortkjær *- Hearing Systems, DTU; Danish Research Centre for Magnetic Resonance, Copenhagen University Hospital Hvidovre, Hvidovre, Denmark


Posters:
Relation between speech intelligibility and perceived width of virtual sound sources
Axel Ahrens*, Torsten Dau, Marton Marschall - Hearing Systems, DTU
Effect of musical training on pitch discrimination performance in older normal-hearing and hearing-impaired listeners
Federica Bianchi* - Hearing Systems, DTU
Sébastien Santurette - Hearing Systems, DTU, Denmark; Department of Otorhinolaryngology, Head and Neck Surgery & Audiology, Rigshospitalet, Copenhagen, Denmark
Torsten Dau - Hearing Systems, DTU

Sensitivity of encoding models for auditory fMRI
Mette L. V. Carstensen*,S - Hearing Systems, DTU; Danish Research Centre for Magnetic Resonance, Copenhagen University Hospital Hvidovre, Denmark
Søren Asp FuglsangS, Torsten Dau - Hearing Systems, DTU
Jens Hjortkjær - Hearing Systems, DTU; Danish Research Centre for Magnetic Resonance, Hvidovre, Denmark

Synaptopathy with envelope following responses (EFR): The off-frequency problem Digit speech: A test material for measuring ongoing speech perception
Gerard Encina-Llamas* - Hearing Systems, DTU
Aravind Parthasarathy - Massachusetts Eye and Ear Infirmary, Harvard Medical School, Boston, MA, USA
James M. Harte - Interacoustics Research Unit, Kgs. Lyngby, Denmark
Torsten Dau - Hearing Systems, DTU
Sharon Kujawa - Massachusetts Eye and Ear Infirmary, Harvard Medical School, Boston, MA, USA, Barbara Shinn-Cunningham - Boston University, Boston, MA, USA
Bastian Epp - - Hearing Systems, DTU

Steering of audio input in hearing aids by eye gaze through in-ear electrodes
Antoine Favre-Felix*, Carina Graversen - Eriksholm Research Centre, Snekkersten, Denmark
Torsten Dau  - Hearing Systems, DTU
Thomas Lunner - Eriksholm Research Centre, Snekkersten, Denmark

Comparing DPOAE and behavioral measures of the basilar-membrane input-output function
Konstantinos Anyfantakis* Acoustic Technology, DTU
Michal Fereczkowski, Bastian Epp, Ewen N. MacDonald - Hearing Systems, DTU

Effects of slow-acting and very fast-acting compression on hearing-impaired listeners' CV identification in interrupted noise
Borys Kowalewski*, Johannes Zaar, Michal Fereczkowski, Ewen N.MacDonald - Hearing Systems, DTU
Olaf Strelcyk - Sonova U.S. Corporate Services, Warrenville, IL, USA
Tobias May, Torsten Dau - Hearing Systems, DTU

Data-driven approach for auditory profiling
Raul H. Sanchez*, Federica Bianchi, Michal Fereczkowski - Hearing Systems, DTU
Sébastien Santurette - Hearing Systems, DTU; Department of Otorhinolaryngology, Head and Neck Surgery & Audiology, Rigshospitalet, Copenhagen, Denmark
Torsten Dau - Hearing Systems, DTU

Digit speech: A test material for measuring ongoing speech perception
Jens Hjortkjær* - Hearing Systems, DTU; Danish Research Centre for Magnetic Resonance, Copenhagen University Hospital Hvidovre, Denmark
Jonatan Märcher-Rørsted - Hearing Systems, DTU

Objective assessment of binaural fusion in young normal-hearing listeners
Niclas A. Janßen* - Hearing Systems, DTU
Lars Bramsløw - Eriksholm Research Centre, Snekkersten, Denmark
Søren Riis - Oticon Medical, Smørum, Denmark
Jeremy Marozeau -  Hearing Systems, DTU

Effects of non-stationary noise on consonant identification
Johannes Zaar*, Borys Kowalewski, Torsten Dau - Hearing Systems, DTU

Investigating the effects of noise-estimation errors in simulated cochlear implant speech intelligibility
Abigail Anne Kressner, Tobias May, Rasmus Malik Thaarup Høegh*, Kristine Aavild Juhl, Thomas Bentsen, Torsten Dau - Hearing Systems, DTU

Semantic differential analysis of electric pulse trains in cochlear implant listeners
Wiebke Lamping* - Hearing Systems, DTU
Sébastien Santurette - Hearing Systems, DTU; Department of Otorhinolaryngology, Head and Neck Surgery & Audiology, Rigshospitalet, Copenhagen, Denmark
Jeremy Marozeau - Hearing Systems, DTU


Contribution of low- and high-frequency bands to binaural unmasking in hearing-impaired listeners
Gusztáv Lőcsei - Hearing Systems, DTU
Sébastien Santurette - Hearing Systems, DTU; Department of Otorhinolaryngology, Head and Neck Surgery & Audiology, Rigshospitalet, Copenhagen, Denmark
Torsten Dau, Ewen N. MacDonald* - Hearing Systems, DTU

Preferred listening levels - a silent disco study
Rikke Sørensen*,S - University of Southern Denmark, Odense, Denmark
Elizabeth Beach, Megan Gilliver - National Acoustic Laboratories, Sydney, Australia
Carsten Daugaard - Delta, Odense, Denmark


The relationship between frequency selectivity and stream segregation of complex tones
Sara M. K. Madsen*, Torsten Dau - Hearing Systems, DTU
Brian C. J. Moore - Department of Psychology, University of Cambridge, Cambridge, UK

The sound sensation of electric stimulation in single-sided deafened cochlear implant recipients
Jeremy Marozeau* - Hearing Systems, DTU
Marine Ardoint, Dan Gnansia - Oticon Medical CI Scientific Research, Vallauris, France
Diane Lazard - Arthur Vernes Institute, Paris, France; Nottingham University, Nottingham, UK

From the auditory nerve to the auditory cortex in a cochlear implanted animal model: how are variables of the electric waveform represented?
Charlotte Amalie Navntoft*,S - Brain Sound Lab, Department of Biomedicine, University of Basel, Switzerland
Jeremy Marozeau - Hearing Systems, DTU
Tania Rinaldi Barkat - Brain Sound Lab, Department of Biomedicine, University of Basel, Basel, Switzerland

Lateralized speech perception with small interaural time differences in normal-hearing and hearing-impaired
Gusztáv Lőcsei - Hearing Systems, DTU
Sébastien Santurette -  Hearing Systems, DTU; Department of Otorhinolaryngology, Head and Neck Surgery & Audiology, Rigshospitalet, Copenhagen, Denmark
Torsten Dau, Ewen N. MacDonald* -  Hearing Systems, DTU

Influence of a remote microphone on localization with hearing aids
Johan G. Selby - Hearing Systems, DTU; GN Resound A/S, Ballerup, Denmark
Adam Weisser - GN Resound A/S, Ballerup, Denmark; Department of Linguistics, Maquarie University, North Ryde, Australia
Ewen N. MacDonald* - Hearing Systems, DTU

Preliminary investigation of the categorization of gaps and overlaps in turn-taking interactions: effects of noise and hearing loss
Anna Josefine Sørensen* - Hearing Systems, DTU
Adam Weisser - GN Resound A/S, Ballerup, Denmark; Macquarie University, Sydney, Australia
Ewen N. MacDonald - Hearing Systems, DTU

Extending a computational model of auditory signal processing and perception towards predicting speech intelligibility
Helia Relaño-Iborra*,S, Johannes Zaar, Torsten Dau - Hearing Systems, DTU

On the cost of introducing speech-like properties to a stimulus for auditory steady-state response measurements
Søren Laugesen* - Interacoustics Research Unit, Kgs. Lyngby, Denmark
Julia E. RieckS - Faculty of Sciences, Free University Amsterdam, The Netherlands
Claus Elberling - Virum, Denmark
Torsten Dau - Hearing Systems, DTU
James M. Harte - Interacoustics Research Unit, Kgs. Lyngby, Denmark

* denotes a presenting author and S a scholarship recipient






 

 

 

 


http://www.hea.elektro.dtu.dk/news/nyhed?id=00FFA9A1-ADE2-48F0-8CF1-9F263714C5C6
18 NOVEMBER 2017