Minimum variance distortionless response on a warped frequency scale. - Matthias Wölfel; John W. McDonough; Alex Waibel (INTERSPEECH, 2003)

A cepstral domain maximum likelihod beamformer for speech recognition. - Dominik Raub; John W. McDonough; Matthias Wölfel (INTERSPEECH, 2004)

Speaker dependent model order selection of spectral envelopes. - Matthias Wölfel (INTERSPEECH, 2004)

Feature weighted mahalanobis distance: Improved robustness for Gaussian classifiers. - Matthias Wölfel; Hazim Kemal Ekenel (EUSIPCO, 2005)

Automatic Speech Activity Detection, Source Localization, and Speech Recognition on the Chil Seminar Corpus. - Dusan Macho; Jaume Padrell; Alberto Abad; Climent Nadeu; Javier Hernando; John W. McDonough; Matthias Wölfel; Ulrich Klee; Maurizio Omologo; Alessio Brutti; Piergiorgio Svaizer; Gerasimos Potamianos; et al. (ICME, 2005)

Frame based model order selection of spectral envelopes. - Matthias Wölfel (INTERSPEECH, 2005)

Combining multi-source far distance speech recognition strategies: beamforming, blind channel and confusion network combination. - Matthias Wölfel; John W. McDonough (INTERSPEECH, 2005)

The "FAME" Interactive Space. - Florian Metze; Petra Gieselmann; Hartwig Holzapfel; Tobias Kluge; Ivica Rogina; Alex Waibel; Matthias Wölfel; James L. Crowley; Patrick Reignier; Dominique Vaufreydaz; François Bérard; Bérangère Cohen; et al. (MLMI, 2005)

Microphone Array Driven Speech Recognition: Influence of Localization on the Word Error Rate. - Matthias Wölfel; Kai Nickel; John W. McDonough (MLMI, 2005)

Minimum variance distortionless response spectral estimation. - Matthias Wölfel; John W. McDonough (IEEE Signal Process. Mag., 2005)

Warped-twice minimum variance distortionless response spectral estimation. - Matthias Wölfel (EUSIPCO, 2006)

Coupling particle filters with automatic speech recognition for speech feature enhancement. - Friedrich Faubel; Matthias Wölfel (INTERSPEECH, 2006)

Advances in lecture recognition: the ISL RT-06s evaluation system. - Christian Fügen; Matthias Wölfel; John W. McDonough; Shajith Ikbal; Florian Kraft; Kornel Laskowski; Mari Ostendorf; Sebastian Stüker; Ken'ichi Kumatani (INTERSPEECH, 2006)

Tracking and beamforming for multiple simultaneous speakers with probabilistic data association filters. - Tobias Gehrig; Ulrich Klee; John W. McDonough; Shajith Ikbal; Matthias Wölfel; Christian Fügen (INTERSPEECH, 2006)

Cross-system adaptation and combination for continuous speech recognition: the influence of phoneme set and acoustic front-end. - Sebastian Stüker; Christian Fügen; Susanne Burger; Matthias Wölfel (INTERSPEECH, 2006)

Multi-source far-distance microphone selection and combination for automatic transcription of lectures. - Matthias Wölfel; Christian Fügen; Shajith Ikbal; John W. McDonough (INTERSPEECH, 2006)

The ISL RT-06S Speech-to-Text System. - Christian Fügen; Shajith Ikbal; Florian Kraft; Ken'ichi Kumatani; Kornel Laskowski; John W. McDonough; Mari Ostendorf; Sebastian Stüker; Matthias Wölfel (MLMI, 2006)

Warped and Warped-Twice MVDR Spectral Estimation With and Without Filterbanks. - Matthias Wölfel (MLMI, 2006)

Audio-visual perception of a lecturer in a smart seminar room. - Rainer Stiefelhagen; Keni Bernardin; Hazim Kemal Ekenel; John W. McDonough; Kai Nickel; Michael Voit; Matthias Wölfel (Signal Process., 2006)

Minimum mutual information beamforming for simultaneous active speakers. - Ken'ichi Kumatani; Uwe Mayer; Tobias Gehrig; Emilian Stoimenov; John W. McDonough; Matthias Wölfel (ASRU, 2007)

The ISL RT-07 Speech-to-Text System. - Matthias Wölfel; Sebastian Stüker; Florian Kraft (CLEAR, 2007)

Overcoming the Vector Taylor Series Approximation in Speech Feature Enhancement - A Particle Filter Approach. - Friedrich Faubel; Matthias Wölfel (ICASSP (4), 2007)

Considering Uncertainty by Particle Filter Enhanced Speech Features in Large Vocabulary Continuous Speech Recognition. - Matthias Wölfel; Friedrich Faubel (ICASSP (4), 2007)

The ISL 2007 English speech transcription system for european parliament speeches. - Sebastian Stüker; Christian Fügen; Florian Kraft; Matthias Wölfel (INTERSPEECH, 2007)

Computer-supported human-human multilingual communication. - Alex Waibel; Keni Bernardin; Matthias Wölfel (INTERSPEECH, 2007)

Channel selection by class separability measures for automatic transcriptions on distant microphones. - Matthias Wölfel (INTERSPEECH, 2007)

Humanoid robot noise suppression by particle filters for improved automatic speech recognition accuracy. - Florian Kraft; Matthias Wölfel (IROS, 2007)

To Separate Speech. - John W. McDonough; Ken'ichi Kumatani; Tobias Gehrig; Emilian Stoimenov; Uwe Mayer; Stefan Schacht; Matthias Wölfel; Dietrich Klakow (MLMI, 2007)

Adaptive Beamforming With a Minimum Mutual Information Criterion. - Ken'ichi Kumatani; Tobias Gehrig; Uwe Mayer; Emilian Stoimenov; John W. McDonough; Matthias Wölfel (IEEE Trans. Speech Audio Process., 2007)

Predictedwalk with correlation in particle filter speech feature enhancement for robust automatic speech recognition. - Matthias Wölfel (ICASSP, 2008)

Integration of the predictedwalk model estimate into the particle filter framework. - Matthias Wölfel (ICASSP, 2008)

Simultaneous German-English lecture translation. - Muntsin Kolss; Matthias Wölfel; Florian Kraft; Jan Niehues; Matthias Paulik; Alex Waibel (IWSLT, 2008)

A Comparative Cross-Domain Study of the Occurrence of Laughter in Meeting and Seminar Corpora. - Susanne Burger; Kornel Laskowski; Matthias Wölfel (LREC, 2008)

Simultaneous machine translation of german lectures into english: Investigating research challenges for the future. - Matthias Wölfel; Muntsin Kolss; Florian Kraft; Jan Niehues; Matthias Paulik; Alex Waibel (SLT, 2008)

On maximum mutual information speaker-adapted training. - John W. McDonough; Matthias Wölfel; Emilian Stoimenov (Comput. Speech Lang., 2008)

Distant Speech Recognition - Matthias Wölfel; John W. McDonough (Wiley, 2009)

Speaker identification using warped MVDR cepstral features. - Matthias Wölfel; Qian Yang; Qin Jin; Tanja Schultz (INTERSPEECH, 2009)

Signal adaptive spectral envelope estimation for robust speech recognition. - Matthias Wölfel (Speech Commun., 2009)

Enhanced Speech Features by Single-Channel Joint Compensation of Noise and Reverberation. - Matthias Wölfel (IEEE Trans. Speech Audio Process., 2009)

Robust Automatic Transcription of Lectures. - Matthias Wölfel (2009)

Automatic Speech Recognition. - Gerasimos Potamianos; Lori Lamel; Matthias Wölfel; Jing Huang 019; Etienne Marcheret; Claude Barras; Xuan Zhu 001; John W. McDonough; Javier Hernando; Dusan Macho; Climent Nadeu (Computers in the Human Interaction Loop, 2009)

Towards social integration of humanoid robots by conversational concept learning. - Florian Kraft; Kevin Kilgour; Rainer Saam; Sebastian Stüker; Matthias Wölfel; Tamim Asfour; Alex Waibel (Humanoids, 2010)

From Signals to Speech Features by Digital Signal Processing. - Matthias Wölfel (Techniques for Noise Robustness in Automatic Speech Recognition, 2012)

Liberated Formatization. - Ulrich Gehmann; Marco Zampella; Matthias Wölfel (CW, 2014)

Interacting with Ads in Hybrid Urban Space. - Matthias Wölfel (CW, 2014)

Increasing Customers' Attention using Implicit and Explicit Interaction in Urban Advertisement. - Matthias Wölfel; Luigi Bucchino (ICMI, 2014)

Hybrid City Lighting - Improving Pedestrians' Safety through Proactive Street Lighting. - Andreas Sieß; Kathleen Hübel; Daniel Hepperle; Andreas Dronov; Christian Hufnagel; Julia Aktun; Matthias Wölfel (CW, 2015)

To Be There, or Not to Be There, that is the Question. - Matthias Wölfel; Ulrich Gehmann (CW, 2015)

Responsive Type - Introducing Self-Adjusting Graphic Characters. - Matthias Wölfel; Angelo Stitz (CW, 2015)

Incentive Guidance of Crowds by Smart City Lights. - Andreas Sieß; Kathleen Hübel; Daniel Hepperle; Andreas Dronov; Christian Hufnagel; Julia Aktun; Matthias Wölfel (MuC, 2015)

Reagierende Schriftzeichen. - Angelo Stitz; Matthias Wölfel (MuC, 2015)

A Voice Driven Type Design Demo. - Matthias Wölfel; Angelo Stitz; Tim Schlippe (MuC, 2015)

Voice driven type design. - Matthias Wölfel; Tim Schlippe; Angelo Stitz (SpeD, 2015)

Willingness of Distracted Smartphone Users on the Move to be Interrupted in Potentially Dangerous Situations. - Sandra Beuck; Alexander Scheurer; Matthias Wölfel (CW, 2017)

Activating people with dementia using natural user interface interaction on a surface computer. - Ramazan Gündogdu; Alexander Bejan; Christophe Kunze; Matthias Wölfel (PervasiveHealth, 2017)

Acceptance of dynamic feedback to poor sitting habits by anthropomorphic objects. - Matthias Wölfel (PervasiveHealth, 2017)

Do you feel what you see?: multimodal perception in virtual reality. - Daniel Hepperle; Matthias Wölfel (VRST, 2017)

Worldmaking: Designing for Audience Participation, Immersion and Interaction in Virtual and Real Spaces. - Andreas Sieß; Daniel Hepperle; Matthias Wölfel; Michael Johansson (ArtsIT/DLI, 2018)

Color Preference Differences between Head Mounted Displays and PC Screens. - Andreas Sieß; Matthias Wölfel; Nico Haffner (CW, 2018)

What User Interface to Use for Virtual Reality? 2D, 3D or Speech-A User Study. - Yannick Weiß; Daniel Hepperle; Andreas Sieß; Matthias Wölfel (CW, 2018)

Effects of Electrical Pain Stimuli on Immersion in Virtual Reality. - Matthias Wölfel; Joey Schubert (CW, 2018)

Rethinking Text: Unleashing the Full Potential of Media to Provide a Better Reading Experience. - Matthias Wölfel (Int. J. Art Cult. Des. Technol., 2018)

Investigating Multimodal Warnings for Distracted Smartphone Users on the Move in Potentially Dangerous Situations. - Melinda C. Braun; Sandra Beuck; Matthias Wölfel; Alexander Scheurer (Trans. Comput. Sci., 2018)

Co-designing Object Shapes with Artificial Intelligence. - Kevin German; Marco Limm; Matthias Wölfel; Silke Helmerdig (ArtsIT/DLI, 2019)

Staging Virtual Reality Exhibits for Bystander Involvement in Semi-public Spaces. - Daniel Hepperle; Andreas Siess; Matthias Wölfel (ArtsIT/DLI, 2019)

Immersive Shopping Presentation of Goods in Virtual Reality. - Matthias Wölfel; Anna Reinhardt (CERC, 2019)

How does Augmented Reality Improve the Play Experience in Current Augmented Reality Enhanced Smartphone Games? - Matthias Wölfel; Melinda C. Braun; Sandra Beuck (CW, 2019)

2D, 3D or speech? A case study on which user interface is preferable for what kind of object interaction in immersive virtual reality. - Daniel Hepperle; Yannick Weiß; Andreas Sieß; Matthias Wölfel (Comput. Graph., 2019)

User color temperature preferences in immersive virtual realities. - Andreas Sieß; Matthias Wölfel (Comput. Graph., 2019)

Towards Artificial Intelligence Serving as an Inspiring Co-Creation Partner. - Kevin German; Marco Limm; Matthias Wölfel; Silke Helmerdig (EAI Endorsed Trans. Creative Technol., 2019)

Accessibility of Different Natural User Interfaces for People with Intellectual Disabilities. - Melinda C. Braun; Matthias Wölfel; Gregor Renner; Christian Menschik (CW, 2020)

Differences in the Uncanny Valley between Head-Mounted Displays and Monitors. - Daniel Hepperle; Hannah Ödell; Matthias Wölfel (CW, 2020)

Visualizing Voice Characteristics with Type Design in Closed Captions for Arabic. - Tim Schlippe; Shaimaa Alessai; Ghanimeh El-Taweel; Matthias Wölfel; Wajdi Zaghouani (CW, 2020)

Staging Location-Based Virtual Reality to Improve Immersive Experiences. - Matthias Wölfel; Daniel Hepperle; Andreas Sieß; Jonas Deuchler (EAI Endorsed Trans. Creative Technol., 2020)

Influence of Visual Appearance of Agents on Presence, Attractiveness, and Agency in Virtual Reality. - Marius Butz; Daniel Hepperle; Matthias Wölfel (ArtsIT, 2021)

Reconstructing Facial Expressions of HMD Users for Avatars in VR. - Christian Felix Purps; Simon Janzer; Matthias Wölfel (ArtsIT, 2021)

Entering a new Dimension in Virtual Reality Research: An Overview of Existing Toolkits, their Features and Challenges. - Matthias Wölfel; Daniel Hepperle; Christian Felix Purps; Jonas Deuchler; Wladimir Hettmann (CW, 2021)

Investigating the Acceptance of the Cognitive Assistant Reflect that Supports Humans in Computer-Oriented Work. - Valeria Zitz; Matthias Wölfel; Rainer Hoffmann 004 (CW, 2021)

Towards the Automatic Generation of Pedagogical Conversational Agents from Lecture Slides. - Matthias Wölfel (ICMTEL (2), 2021)

Reducing the Human Factor in Virtual Reality Research to Increase Reproducibility and Replicability. - Daniel Hepperle; Tobias Dienlin; Matthias Wölfel (ISMAR Adjunct, 2021)

Engaging Museum Visitors with AI-Generated Narration and Gameplay. - Wladimir Hettmann; Matthias Wölfel; Marius Butz; Kevin Torner; Janika Finken (ArtsIT, 2022)

When Left Behind in Multi-User Virtual Reality: Clues to Indicate the Absence of Users. - Matthias Wölfel; Lara-Marie Bäsing; Jonas Deuchler (CW, 2022)

Lessons Learned in Transferring a Lecture on Virtual Reality into Immersive Virtual Reality. - Jonas Deuchler; Matthias Wölfel (DELFI, 2022)

The First Impression Counts! The Importance of Onboarding for Educational Chatbots. - Trong Nghia Hoang; Andreas Reich; Matthias Wölfel (DELFI, 2022)

Enabling Embodied Conversational Agents to Respond to Nonverbal Behavior of the Communication Partner. - Matthias Wölfel; Christian Felix Purps; Noah Percifull (HCI (3), 2022)

Demands on User Interfaces for People with Intellectual Disabilities, Their Requirements, and Adjustments. - Melinda C. Braun; Matthias Wölfel (PervasiveHealth, 2022)

Asymmetric Normalization in Social Virtual Reality Studies. - Jonas Deuchler; Daniel Hepperle; Matthias Wölfel (VR Workshops, 2022)

Aspects of visual avatar appearance: self-representation, display type, and uncanny valley. - Daniel Hepperle; Christian Felix Purps; Jonas Deuchler; Matthias Wölfel (Vis. Comput., 2022)

Exploring Perception and Preference in Public Human-Agent Interaction: Virtual Human Vs. Social Robot. - Christian Felix Purps; Wladimir Hettmann; Thorsten Zylowski; Nathalia Sautchuk Patricio; Daniel Hepperle; Matthias Wölfel (ArtsIT (2), 2023)

Identification of Unreliable Data in in-VR Surveys using Biosignal Sensors. - Matthias Wölfel; Wladimir Hettmann (CW, 2023)

An NLP Analysis of ChatGPT's Personality Simulation Capabilities and Implications for Human-centric Explainable AI Interfaces. - Thorsten Zylowski; Matthias Wölfel (ICNLSP, 2023)

Transitioning from Conventional Emergency Devices to Interaction and Voice Assistance - A Case Study on Co-Creating an AI-based Care Assistance and Multimodal Interaction System for Outpatient Care. - Tobias Roos; Christian Felix Purps; Christophe Kunze; Matthias Wölfel (MuC (Workshopband), 2023)

Streamlining Physiological Observations in Immersive Virtual Reality Studies with the Virtual Reality Scientific Toolkit. - Jonas Deuchler; Wladimir Hettmann; Daniel Hepperle; Matthias Wölfel (VR Workshops, 2023)

Similarities and Differences between Immersive Virtual Reality, Real World, and Computer Screens: A Systematic Scoping Review in Human Behavior Studies. - Daniel Hepperle; Matthias Wölfel (Multimodal Technol. Interact., 2023)

User Study on the Trustworthiness, Usability and Explainability of Intent-based and Large Language Model-based Career Planning Conversational Agents. - Thorsten Zylowski; Nathalia Sautchuk Patricio; Wladimir Hettmann; Katharina Anderer; Karl Fischer; Matthias Wölfel; Peter Henning (ICETC, 2024)

MaViLS, a Benchmark Dataset for Video-to-Slide Alignment, Assessing Baseline Accuracy with a Multimodal Alignment Algorithm Leveraging Speech, OCR, and Visual Features. - Katharina Anderer; Andreas Reich; Matthias Wölfel (INTERSPEECH, 2024)

Evaluation of Different Passive Methods for Liveness Detection. - Marius Butz; Matthias Wölfel (ISDFS, 2024)

Exploring Ecological Validity: A Comparative Study of the Mere Exposure Effect on Screens and in Immersive Virtual Reality. - Daniel Hepperle; Matthias Wölfel (ISVC (2), 2024)

Towards Connecting East and West German Cities Through Public Extended Reality. - Daniel Görlich; Matthias Wölfel (MuC (Workshopband), 2024)

Envisioning the Future of Accessible Immersive Technology: Creating a Roadmap and Building Community. - Marvin Wolf; Julia K. Anken; Katrin Angerbauer; Markus Wieland; Matthias Wölfel; Karin Müller 001; Kathrin Gerling (MuC (Workshopband), 2024)

Fusing Components for an Attentive and Emotionally Expressive Companion Robot: Meet ZENIT. - Christian Felix Purps; Matthias Wölfel (RO-MAN, 2024)

Identifying the Information Gap for Visually Impaired Students during Lecture Talks. - Katharina Anderer; Matthias Wölfel; Jan Niehues (VL/HCC, 2024)

Knowledge-Based and Generative-AI-Driven Pedagogical Conversational Agents: A Comparative Study of Grice's Cooperative Principles and Trust. - Matthias Wölfel; Mehrnoush Barani Shirzad; Andreas Reich; Katharina Anderer (Big Data Cogn. Comput., 2024)

Immersive virtual reality in higher education: a systematic review of the scientific literature. - Christian M. Stracke; Pia Bothe; Simon Adler; Evelyn Susanne Heller; Jonas Deuchler; Jenny Pomino; Matthias Wölfel (Virtual Real., 2025)