Florian (see red arrow in the group picture) was invited to talk about his work with the Voice Guard algorithm in Oticon Medical devices at the Oticon Scientific Meeting from 24th to 25th of September. He visited the manufacturer facilities and was able to listen to a lot of interesting talks from other researchers across the globe.
We are proud to welcome our newester member to the APG: Daniel Alrutz!
Daniel has a background in theoretical physics at the Leibniz University in Hanover. He became interested in a Ph.D. in auditory prostethics by his girlfriend who works as a speech therapist for deaf children.
His Ph.D. will deal with the modelling side of electro-acoustic stimulation or hearing (EAS) and he started at the 1st of August. For details about his Bachelor's and Master's thesis, visit our People page.
We wish Daniel all the best for his coming Ph.D. and a lot of great experiences!
We started our own Facebook page to better reach out to anyone who is interested in our research and the people behind the APG. Be sure to like the page for updates!
The APG had a very intense and fruitful CIAP 2017! We contributed with 5 posters by Benjamin Krüger, Florian Langner, Snandan Sharma, Nawal El Boghdady and Silke Klawiter and two talks by Waldo Nogueira (Invited) and Marina Imsiecke. Moreover we had great discussions and had a lot of fun in this great conference!
Florian Langner presented a poster at the IFOS 2017 in Paris on the Effect of dynamic range in different stages of signal processing in Cochlear Implant Listeners on Spech
Torben Fiedler defended his Bachelor Thesis at the Hochschule Bremerhaven on modeling laser stimulation for cochlear implants.
At this year's ARO in Baltimore (USA) we presented the following works:
1) Perceptual Differences Between Monopolar and Phantom Electrode Stimulation by Silke Klawitter in collaboration with David Landsberger from EarLab, New York University, USA.
2) Contralateral Efferent Suppression of Human Hearing Sensitivity in Single-sided Deaf Cochlear Implant Users by Waldo Nogueira in collaboration with Enrique Lopez-Poveda, Unviersity of Salamanca, Spain.
Moreover Waldo Nogueira contributed with a mentoring session on How to Write Grants.
Waldo Nogueira gave a talk on: Signal Processing in Cochlear Implants: State of the Art and Future Directions during the Telecomunications Seminar organized by Prof. Tim Fingscheidt at the TU Braunschweig.
Tom Gajecki and Waldo Nogueira presented the work "Development of a Sound Coding Strategy based on a Deep Recurrent Neural Network for Monaural Source Separation in Cochlear Implants" at the ITG 2016 Speech Communication in Padeborn, Germany. This work proposes a cochlear implant sound coding strategy arquitecture based on a deep recurrent neural network (DRNN) to enhance a target speaker in the presence of a competing voice. The algorithm has been evaluated in normal hearing listeners using a VoCoder and cochlear implant users. it seems that the algorithm provides larger improvements in sppech intelligibility for normal hearing listenersthan for cochlear implant users. The hypothesis to explain these contradictory results may be that cochlear implant users are more sensitive to the distortions introduced by the DRNN in the target signal than normal hearing listerns using the VoCoder.
The poster and the manuscript can be obtained from these links ([poster] [paper]). Some Pictures of Tom Gajecki presenting the poster are given below.