Search results for: signal processing technology in hearing aids

• A study on signal processing methods applied to hearing aids

  Publication

  • B. Kostek
  • K. Kąkol

  - Year 2016

  This paper presents a short survey on current technology available in hearing aids with a focus on digital signal processing techniques used. First, factors influencing the hearing aid effectiveness are introduced. Then, examples of the present DSP methods and strategies are provided. Also, a description of current limitations of hearing aids and future trends of development are shown. Finally, the notion of computational auditory...

• Grzegorz Szwoch dr hab. inż.

  People

  Department of Multimedia Systems

  Grzegorz Szwoch was born in 1972 in Gdansk. In 1991-1996 he studied at the Technical University of Gdansk. In 1996 he graduated as a student from the Sound Engineering Department. His thesis was related to physical modeling of musical instruments. Since that time he has been a member of the research staff at the Multimedia Systems Department as a PhD student (1996-2001), Assistant (2001-2004), Assistant professor (2004-2020) and...

• The influence of time of hearing aid use on auditory perception in various acoustic situations

  Publication

  • P. Szymański
  • T. Poremski
  • B. Kostek

  - Journal of the Acoustical Society of America - Year 2018

  The assessment of sound perception in hearing aids, especially in the context of benefits that a prosthesis can bring, is a complex issue. The objective parameters of the hearing aids can easily be determined. These parameters, however, do not always have a direct and decisive influence on the subjective assessment of quality of the patient’s hearing while using a hearing aid. The paper presents the development of a method for...

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• Pursuing Analytically the Influence of Hearing Aid Use on Auditory Perception in Various Acoustic Situations

  Publication

  • P. Szymański
  • T. Poremski
  • B. Kostek

  - Vibrations in Physical Systems - Year 2022

  The paper presents the development of a method for assessing auditory perception and the effectiveness of applying hearing aids for hard-of-hearing people during short-term (up to 7 days) and longer-term (up to 3 months) use. The method consists of a survey based on the APHAB questionnaire. Additional criteria such as the degree of hearing loss, technological level of hearing aids used, as well as the user experience are taken...

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• Introduction to the special issue on machine learning in acoustics

  Publication

  • Z. Michalopoulou
  • P. Gerstoft
  • B. Kostek
  • M. A. Roch

  - Journal of the Acoustical Society of America - Year 2021

  When we started our Call for Papers for a Special Issue on “Machine Learning in Acoustics” in the Journal of the Acoustical Society of America, our ambition was to invite papers in which machine learning was applied to all acoustics areas. They were listed, but not limited to, as follows: • Music and synthesis analysis • Music sentiment analysis • Music perception • Intelligent music recognition • Musical source separation • Singing...

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• Combining MUSHRA Test and Fuzzy Logic in the Evaluation of Benefits of Using Hearing Prostheses

  Publication

  • P. Szymański
  • T. Poremski
  • B. Kostek

  - Electronics - Year 2023

  Assessing the effectiveness of hearing aid fittings based on the benefits they provide is crucial but intricate. While objective metrics of hearing aids like gain, frequency response, and distortion are measurable, they do not directly indicate user benefits. Hearing aid performance assessment encompasses various aspects, such as compensating for hearing loss and user satisfaction. The authors suggest enhancing the widely used...

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• System oceny efektywności użytkowania aparatów słuchowych (Hearing aid use effectiveness evaluation system)

  Publication

  • P. Szymański

  - Year 2024

  Celem rozprawy jest opracowanie metody oceny efektywności protezowania słuchu przy użyciu aparatów słuchowych, która  pozwoli w łatwy sposób poddawać ocenie korzyść z użytkowania protez słuchowych w najbardziej typowych sytuacjach akustycznych. Przedstawiono genezę podjętych badań i na tej podstawie zaproponowano cele i tezy rozprawy doktorskiej. W pracy w pierwszej kolejności zawarto przegląd dotyczący rodzajów ubytku słuchu...

• Engineering Challenges in the Design of Cochlear Implants

  Publication

  • K. Ullah
  • M. Ishaq

  - Year 2021

  Hearing aids such as cochlear implants have been used by both adults and children for a long time. In addition, cochlear implants are used by patients who have severe hearing loss either by birth or after an accident. This paper aims to investigate the engineering challenges bounding the design of cochlear implants and present its possible solution...

• Marek Blok dr hab. inż.

  People

  Marek Blok in 1994 graduated from the Faculty of Electronics at Gdansk University of Technology receiving his MSc in telecommunications. In 2003 received Ph.D.  and in 2017 D.Sc. in telecommunications from the Faculty of Electronics, Telecommunications and Informatics of Gdańsk University of Technology. His research interests are focused on application of digital signal processing in telecommunications. He provides lectures, laboratory...

• MECHANICAL SYSTEMS AND SIGNAL PROCESSING

  Journals

  ISSN: 0888-3270

• SIGNAL PROCESSING

  Journals

  ISSN: 0165-1684 , eISSN: 1872-7557

• Digital Signal Processing

  e-Learning Courses

  • T. Stefański

• Expert media approach to hearing aids fitting

  Publication

  • A. Czyżewski
  • B. Kostek

  - INTERNATIONAL JOURNAL OF INTELLIGENT SYSTEMS - Year 2002

  W artykule zaprezentowano problematykę dopasowania protez słuchu. Przedstawiono system ekspercki, który pozwala na znalezienie charakterystyk aparatu słuchowego adekwatnego do uszkodzenia słuchu. System został oparty o metodę zbiorów przybliżonych i logikę rozmytą.

• IEEE TRANSACTIONS ON SIGNAL PROCESSING

  Journals

  ISSN: 1053-587X , eISSN: 1941-0476

• Application of hybrid signals processors to speech and hearing aids

  Publication

  • P. Odya
  • A. Czyżewski

  - Year 2005

  Dzięki postępowi w technice Cyfrowych Procesorów Sygnałowych (ang. DSP) stało się możliwe budowanie miniaturowych protez słuchu i mowy. Mimo niewielkich wymiarów procesory te są w stanie wykonywać złożone algorytmy. Ich dodatkową zaletą jest łatwość zmiany oprogramowania, a co za tym idzie łatwość zmiany dziedziny zastosowań. W pracy skupiono się na zagadnieniach związanych z projektowanie i implementacją algorytmów mających zastosowanie...

• Digital Signal Processing - 22/23

  e-Learning Courses

  • T. Stefański

   Po ukończeniu kursu, student projektuje podstawowe algorytmy cyfrowego przetwarzania sygnałów - filtrów cyfrowych FIR i IIR, i estymuje widmo za pomocą FFT.Student opisuje architektury i ścieżki danych procesorów stało-przecinkowych i zmienno-przecinkowych. Student tłumaczy podstawy arytmetyki procesorów i podaje przykłady zastosowań.

• Digital Signal Processing-23/24

  e-Learning Courses

   Po ukończeniu kursu, student projektuje podstawowe algorytmy cyfrowego przetwarzania sygnałów - filtrów cyfrowych FIR i IIR, i estymuje widmo za pomocą FFT.Student opisuje architektury i ścieżki danych procesorów stało-przecinkowych i zmienno-przecinkowych. Student tłumaczy podstawy arytmetyki procesorów i podaje przykłady zastosowań.

• Digital signal processing applied to the modernization of Polish Navy sonars

  Publication

  • J. Marszal

  - Polish Maritime Research - Year 2014

  The article presents the equipment and digital signal processing methods used for modernizing the Polish Navy’s sonars. With the rapid advancement of electronic technologies and digital signal processing methods, electronic systems, including sonars, become obsolete very quickly. In the late 1990s a team of researchers of the Department of Marine Electronics Systems, Faculty of Electronics, Telecommunications and Informatics, Gdansk...

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• Digital Processing of Frequency–Pulse Signal in Measurement System

  Publication

  • D. Świsulski
  • E. Pawłowski
  • M. Dorozhovets

  - Year 2018

  The work presents the issue of the use of multichannel measurement systems of sensors processing input value to impulse signal frequency. The frequency impulse signal obtained from such sensors is often required to be processed at the same time with a voltage signal which is obtained from other sensors used in the same measurement system. In such case, it is usually necessary to sample the output signals from all sensors in the...

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• Efficient signal processing in spectroscopic optical coherence tomography

  Publication

  • M. Kraszewski
  • M. Trojanowski
  • M. Strąkowski

  - Year 2015

  Spectroscopic optical coherence tomography (SOCT) is an extension of a standard OCT technique, which allows to obtain depth-resolved, spectroscopic information on the examined sample. It can be used as a source of additional contrast in OCT images e.g. by encoding certain features of the light spectrum into the hue of the image pixels. However, SOCT require computation of time-frequency distributions of each OCT A-scan, what is...

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• DIGITAL SIGNAL PROCESSING

  Journals

  ISSN: 1051-2004 , eISSN: 1095-4333

• Probe signal processing for channel estimation in underwater acoustic communication system

  Publication

  • I. Kochańska
  • J. Schmidt

  - Year 2017

  Underwater acoustic communication channels are characterized by a large variety of propagation conditions. Designing a reliable communication system requires knowledge of the transmission parameters of the channel, namely multipath delay spread, Doppler spread, coherence time, and coherence bandwidth. However, the possibilities of its estimation in a realtime underwater communication system are limited, mainly due to the computational...

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• Intelligent Audio Signal Processing − Do We Still Need Annotated Datasets?

  Publication

  • B. Kostek

  - Year 2022

  In this paper, intelligent audio signal processing examples are shortly described. The focus is, however, on the machine learning approach and datasets needed, especially for deep learning models. Years of intense research produced many important results in this area; however, the goal of fully intelligent signal processing, characterized by its autonomous acting, is not yet achieved. Therefore, a review of state-of-the-art concerning...

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• Contactless Hearing Aid for Infants Employing Signal Processing Algorithms. [Bezkontaktowy aparat słuchowy dla niemowląt wykorzystujący algorytmy przetwarzania sygnału]

  Publication

  • M. Kulesza
  • P. Dalka
  • B. Kostek

  - Year 2006

  Zaprojektowany bezkontaktowy aparat słuchowy umiejscawiany jest w łóżeczku niemowlęcia. Aparat składający się z matrycy 4 mikrofonów oraz prototypowej karty z procesorem DSP pracuje w polu swobodnym. Przetworzony sygnał mowy emitowany jest z wykorzystaniem miniaturowych głośników. Opracowane algorytmy pozwalają na elminację akustycznych sprzężeń zwrotnych, które mogą wystepować ze względu na niewielką odległość mikrofonów od głośników...

• Lamb wave based structural damage detection using cointegration and fractal signal processing

  Publication

  • P. Dao
  • W. Staszewski
  • P. B. Dao

  - Mechanical Systems and Signal Processing - Year 2014

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• A digital implementation of the PSK transmitter and receiver as multirate algorithms of the digital signal processing

  Publication

  • K. Świder
  • M. Papaj

  - Year 2011

  In this paper designs of the transmitter and the receiver of PSK signals as three-rate algorithms of the digital signal processing are described. Additionally we show the examples of the transmitter and the receiver of the following signals: BPSK, QPSK. We discussed also an influence of the cascade of the shaping filter and the receiving filter on the intersymbol interference in the received complex envelope.W pracy opisano projektowanie...

• Hearing aid fitting method based on fuzzy logic processing

  Publication

  • P. Suchomski
  • B. Kostek
  • A. Czyżewski

  - Archives of Acoustics - Year 2008

  Ważnym etapem dopasowania współczesnych aparatów słuchowych jest wyznaczanie charakterystyki dynamiki słuchu. Charakterystyka ta wyznaczana jest na podstawie wyników testu skalowania głośności. Niestety wyniki te wyrażone są w skali kategorii głośności, natomiast aparaty słuchowe wymagają para-metrów numerycznych. Problem ten można rozwiązać za pomocą logiki rozmytej. W niniejszym referacie przedstawiono metodę przetwarzania rozmytego...

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• Hearing aid fitting method based on fuzzy logic processing

  Publication

  • P. Suchomski
  • B. Kostek
  • A. Czyżewski

  - Year 2008

  Ważnym etapem dopasowania współczesnych aparatów słuchowych jest wyznaczanie charakterystyki dynamiki słuchu. Charakterystyka ta wyznaczana jest na podstawie wyników testu skalowania głośności. Niestety wyniki te wyrażone są w skali kategorii głośności, natomiast aparaty słuchowe wymagają para-metrów numerycznych. Problem ten można rozwiązać za pomocą logiki rozmytej. W niniejszym referacie przedstawiono metodę przetwarzania rozmytego...

• New technology for hearing stimulation employing the SPS-S method

  Publication

  • A. Czyżewski
  • B. Kostek
  • P. Odya
  • H. Skarżyński
  • P. Skarżyński
  • P. Suchomski

  - Year 2009

  Istotnym założeniem metody SPS-S jest możliwość stosowania treningu słuchowego w warunkach życia codziennego, a więc także poza gabinetami placówek terapeutycznych. Mobilne urządzenie - stymulator słuchu jest oparte na najnowszej technologii mikroelektronicznej, Oferuje on możliwość wykorzystywania wielu programów terapii, które przebiegają z zastosowaniem algorytmów cyfrowego przetwarzania dźwięku. Algorytmy te można podzielić...

• Simulation of electric hearing - influence of simulation parameters on quality of output signal

  Publication

  • A. Walkowiak
  • B. Kostek
  • A. Lorens
  • A. Czyżewski
  • A. Obrycka
  • A. Wąsowski

  - Year 2006

  W środowisku programistycznym Matlab stworzono symulację słuchu elektrycznego pacjenta implantowanego. W symulacji zastosowano algorytm przetwarzania wykorzystywany w komercyjnych systemach implantów ślimakowych - CIS (Continuous Interleaved Sampling). W pracy zbadano wpływ ilości kanałów, jak i innych parametrów sygnałów wyjściowych przy zastosowaniu sygału mowy jako sygnału wejściowego symulacji.

• CIRCUITS SYSTEMS AND SIGNAL PROCESSING

  Journals

  ISSN: 0278-081X , eISSN: 1531-5878

• Biomedical Signal Processing and Control

  Journals

  ISSN: 1746-8094 , eISSN: 1746-8108

• Zdzisław Kowalczuk prof. dr hab. inż.

  People

  Department of Decision Systems and Robotics

  Zdzislaw Kowalczuk received his M.Sc. degree in 1978 and Ph.D. degree in 1986, both in Automatic Control from Technical University of Gdańsk (TUG), Gdańsk, Poland. In 1993 he received his D.Sc. degree (Dr Habilitus) in Automatic Control from Silesian Technical University, Gliwice, Poland, and the title of Professor from the President of Poland in 2003. Since 1978 he has been with Faculty of Electronics, Telecommunications and Informatics...

• Digital structures for high-speed signal processing

  Publication

  • M. Czyżak

  - Year 2013

  The work covers several issues of realization of digital structures for pipelined processing of real and complex signals with the use of binary arithmetic and residue arithmetic. Basic rules of performing operations in residue arithmetic are presented along with selected residue number systems for processing of complex signals and computation of convolution. Subsequently, methods of conversion of numbers from weighted systems to...

• Characteristics of an image sensor with early-vision processing fabricated in standard 0.35 µm CMOS technology

  Publication

  • W. Jendernalik
  • J. Jakusz
  • G. Blakiewicz
  • S. Szczepański
  • R. P. Piotrowski

  - Metrology and Measurement Systems - Year 2012

  The article presents measurement results of prototype integrated circuits for acquisition and processing of images in real time. In order to verify a new concept of circuit solutions of analogue image processors, experimental integrated circuits were fabricated. The integrated circuits, designed in a standard 0.35 µm CMOS technology, contain the image sensor and analogue processors that perform low-level convolution-based image...

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• Michał Lech dr inż.

  People

  Michał Lech was born in Gdynia in 1983. In 2007 he graduated from the faculty of Electronics, Telecommunications and Informatics of Gdansk University of Technology. In June 2013, he received his Ph.D. degree. The subject of the dissertation was: “A Method and Algorithms for Controlling the Sound Mixing Processes by Hand Gestures Recognized Using Computer Vision”. The main focus of the thesis was the bias of audio perception caused...

• seafloor characterisation combined approach using multibeam sonar echo signal processing and image analysis

  Publication

  • Z. Łubniewski
  • A. Stepnowski
  • A. Chybicki

  - Year 2010

  The authors propose the approach to seafloor characterisation which relies on the combined, concurrent use of two different techniques: (i) multibeam sonar image analysis and (ii) multibeam seabed echoes processing. The first technique is based on constructing the grey-level sonar images of the seabed extracted from the echoes received in the consecutive soundings. Then, the set of parameters describing the local region of sonar...

• Artur Gańcza mgr inż.

  People

  Department of Marine Electronic Systems

  I received the M.Sc. degree from the Gdańsk University of Technology (GUT), Gdańsk, Poland, in 2019. I am currently a Ph.D. student at GUT, with the Department of Automatic Control, Faculty of Electronics, Telecommunications and Informatics. My professional interests include speech recognition, system identification, adaptive signal processing and linear algebra.

• System of speech signal processing and visualisation for linguistic purposes

  Publication

  • K. Wojan

  - Archives of Acoustics - Year 2005

• Using wearable device for biomedical signal acquisition and processing

  Publication

  • T. Kocejko
  • A. Giczewska
  • J. Wtorek
  • A. Poliński

  - Year 2017

  In this paper we present the research conducted on synchronous measurements of biosignals. The experiment was conducted to evaluate the possibility of estimating vital signs based on eye tracking. Method: The eGlasses platform was used for acquisition of ECG, respiration rate, eye and pupil movement and blood pressure. Data were acquired in three 5 min. intervals during which a subject was performing certain tasks. The signals...

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• The Processing Procedure for the Interpretation of Microseismic Signal Acquired from a Surface Array During Hydraulic Fracturing in Pomerania Region in Poland

  Publication

  • M. Antoszkiewicz
  • M. Kmieć
  • P. Szewczuk
  • M. Szkodo
  • R. Jankowski

  - Year 2017

  Hydraulic fracturing is a procedure of injecting high pressure fluid into the wellbore in order to break shell rock and facilitate gas flow. It is a very costly procedure and, if not conducted properly, it may lead to environmental pollution. To avoid costs associated with pumping fluid outside the perspective (gas rich) zone and improve one’s knowledge about the reservoir rock, microseismic monitoring can be applied. The method...

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• WSEAS Transactions on Signal Processing

  Journals

  ISSN: 1790-5052

• Journal of Signal and Image Processing

  Journals

  ISSN: 0976-8882

• Foundations and Trends in Signal Processing

  Journals

  ISSN: 1932-8346 , eISSN: 1932-8354

• IEEE SIGNAL PROCESSING LETTERS

  Journals

  ISSN: 1070-9908 , eISSN: 1558-2361

• MULTIDIMENSIONAL SYSTEMS AND SIGNAL PROCESSING

  Journals

  ISSN: 0923-6082 , eISSN: 1573-0824

• Springer Topics in Signal Processing

  Journals

  ISSN: 1866-2609 , eISSN: 1866-2617

• SIGNAL PROCESSING-IMAGE COMMUNICATION

  Journals

  ISSN: 0923-5965 , eISSN: 1879-2677

• Acoustic signal processing in passive sonar system with towed array

  Publication

  • M. Rudnicki
  • A. Raganowicz
  • J. Schmidt

  - HYDROACOUSTICS - Year 2008

  W referacie opisano przetwarzanie sygnałów akustycznych w pasywnym systemie hydrolokacyjnym. W pojęciu ''przetwarzanie sygnałów akustycznych'' mieszczą się wszelkie operacje wykonywane na sygnałach analogowych tj. wzmacnianie, filtracja i próbkowanie, jak również operacje na sygnałach cyfrowych uzyskanych w procesie próbkowania. Do operacji cyfrowych wykonywanych w systemie zalicza się synchronizację, konwersję, sortowanie, wytwarzanie...

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• Digital Signal Processing for Hydroacoustic System in Biomimetic Underwater Vehicle

  Publication

  • P. Piskur
  • M. Gasiorowski

  - Nase More - Year 2020

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