| 2003 | Interspeech | Smartkom-home - an advanced multi-modal interface to home entertainment. | Thomas Portele, Silke Goronzy, Martin C. Emele, Andreas Kellner, Sunna Torge, Jrgen te Vrugt |
| 2002 | COLING | Data-driven Classification of Linguistic Styles in Spoken Dialogues. | Thomas Portele |
| 2000 | Interspeech | Interpolation of stochastic grammar and word bigram models in natural language understanding. | Sven C. Martin, Andreas Kellner, Thomas Portele |
| 2000 | Interspeech | Natural language generation for spoken dialogue. | Thomas Portele |
| 1999 | Interspeech | Comparative evaluation of six German TTS systems. | Gerit P. Sonntag, Thomas Portele, Felicitas Haas, Joachim Khler |
| 1999 | Interspeech | Synthesis by word concatenation. | Karlheinz Stber, Thomas Portele, Petra Wagner, Wolfgang Hess |
| 1999 | Interspeech | Levels of reduction for German tense vowels. | Christina Widera, Thomas Portele |
| 1998 | Interspeech | Perceived prominence and acoustic parameters in american English. | Thomas Portele |
| 1998 | Interspeech | The maximum-based description of F0 contours and its application to English. | Thomas Portele, Barbara Heuft |
| 1998 | Interspeech | Comparative evaluation of synthetic prosody with the PURR method. | Gerit P. Sonntag, Thomas Portele |
| 1998 | LREC | Constructing a prosodic database for american english. | Anja Elsner, Maria K. Wolters, Thomas Portele, Mnica Rauth, Gerit P. Sonntag |
| 1997 | ICASSP | Prosody generation with a neural network: weighing the importance of input parameters. | Gerit P. Sonntag, Thomas Portele, Barbara Heuft |
| 1997 | Interspeech | Speech synthesis using non-uniform units in the Verbmobil project. | Simon King, Thomas Portele, Florian Hfer |
| 1997 | Interspeech | Prediction of word prominence. | Christina Widera, Thomas Portele, Maria Wolters |
| 1996 | Interspeech | Synthesizing prosody: a prominence-based approach. | Barbara Heuft, Thomas Portele |
| 1996 | Interspeech | Emotions in time domain synthesis. | Barbara Heuft, Thomas Portele, Monika Rauth |
| 1996 | Interspeech | Adapting a TTS system to a reading machine for the blind. | Thomas Portele, Jrgen Krmer |
| 1996 | Interspeech | Generation of multiple synthesis inventories by a bootstrapping procedure. | Thomas Portele, Karlheinz Stber, Horst Meyer, Wolfgang Hess |
| 1995 | Interspeech | Intrinsic prosodic values and segmental context. | Barbara Heuft, Thomas Portele |
| 1994 | Interspeech | Production and perception of words with identical segmental structure but different number of syllables. | Barbara Heuft, Thomas Portele |
| 1994 | Interspeech | Structure and representation of an inventory for German speech synthesis. | Thomas Portele, Florian Hfer, Wolfgang J. Hess |
| 1992 | Interspeech | HADIFIX - a speech synthesis system for German. | Thomas Portele, Birgit Steffan, Rainer Preu, Walter F. Sendlmeier, Wolfgang Hess |
| 1991 | Interspeech | German speech synthesis by concatenation of non-parametric units. | Thomas Portele, Birgit Steffan, Rainer Preu, Wolfgang Hess |