Areas of interest

• Text to Speech Synthesis
• Emotional and Expressive Text to Speech Synthesis
• Digital Signal Processing
• Voice Transformation
• Pattern Analysis and Recognition in Digital Signals
• Natural Language Processing

CV data

Aimilios Chalamandaris obtained the Diploma in electrical engineering from the National Technical University of Athens in 2000 and carried out his thesis in collaboration with the Institute for Language and Speech Processing, with the subject: “Time-domain text to speech synthesis: algorithms for best unit selection”. He pursued his postgraduate studies at London Imperial College , which led to the award of an MSc in Telecommunications and Digital Signal Processing in 2001 (Final thesis: “Voice transformation through prosodic and spectral modification”. Currently he is carrying out his PhD degree under the supervision of prof. G. Carayannis and in the field of time-domain speech synthesis. His research interests are text to speech synthesis, emotional and expressive synthesis, voice transformation, pattern recognition, music recognition and natural language processing.

He is being associated with the Institute for Language and Speech Processing since October 2001 and he has participated in several R&D national and EU projects, such as EFONON, MUSICNETWORK, IMUTUS, HEARTS, SOL, VEMUS, MobiTalk, INTERREG-III. He has at the same time he has also participated actively in the development of ILSP’s products such as All Greek to Me! and Ekfonitis+.

Aimilios is currently a member of the Speech Synthesis Team at ILSP and actively participates in the R&D of new technologies and algorithms for speech analysis, processing and synthesis.

• Raptis, S., Tsiakoulis, P., Chalamandaris, A. & Sotiris Karabetsos. (2016). Expressive speech synthesis for storytelling: the INNOETICS’entry to the blizzard challenge 2016. In Proc. Blizzard Challenge workshop. [...] 
• Raptis, S., Karabetsos, S., Chalamandaris, A. & Tsiakoulis, P. (2015). A framework towards expressive speech analysis and synthesis with preliminary results. Journal on Multimodal User Interfaces, 9(4), 387-394. [...] 
• Raptis, S., Karabetsos, S., Chalamandaris, A. & Tsiakoulis, P. (2014). Towards expressive speech synthesis: Analysis and modeling of expressive speech. In 2014 5th IEEE Conference on Cognitive Infocommunications (CogInfoCom), pages 461-465. [...] 
• Chalamandaris, A., Tsiakoulis, P., Karabetsos, S. & Raptis, S. (2014). Using Audio Books for Training a Text-to-Speech System.. In LREC, pages 3076-3080. [...] 
• Sofia Tsekeridou, Vassileios Tsetsos, Chalamandaris, A., Chamzas, C., Thomas Filippou & Christos Pantzoglou. (2014). iGuide: Socially-enriched mobile tourist guide for unexplored sites. In Hellenic Conference on Artificial Intelligence, pages 603-614. [...] 
• Raptis, S., Chalamandaris, A., Tsiakoulis, P. & Karabetsos, S (2014). Open Web-Based Text-to-Speech Services for the Citizens. " HCI International 2014 - Communications in Computer and Information Science". Berlin / Heidelberg : Springer. [...] 
• Tsiakoulis, P., Karabetsos, S., Chalamandaris, A. & Raptis, S (2014). An Overview of the ILSP Unit Selection Text-to-Speech Synthesis System. In A. Likas, K., Blekas, D. & Kalles (editors), " Artificial Intelligence: Methods and Applications Lecture Notes in Computer Science.". Berlin / Heidelberg : Springer. [...] 
• Chalamandaris, A., Tsiakoulis, P., Karabetsos, S. & Raptis, S. (2013). An Automated Method for Creating New Synthetic Voices from Audiobooks. In Proc. 6th Language & Technology Conference: Human Language Technologies as a Challenge for Computer Science and Linguistics (LTC 2013). [...] 
• Chalamandaris, A., Tsiakoulis, P., Karabetsos, S. & Raptis, S. (2013). The ILSP/INNOETICS Text-to-Speech System for the Blizzard Challenge 2013. In The Blizzard Challenge 2013 workshop. Reykjavik, Iceland Barcelona, Spain. [...] 
• Raptis, S., Chalamandaris, A., Tsiakoulis, P. & Karabetsos, S. (2012). The ILSP Text-to-Speech System for the Blizzard Challenge 2012. In The Blizzard Challenge 2012. Portland, Oregon, USA. [...] 
• Raptis, S., Chalamandaris, A., Tsiakoulis, P. & Karabetsos, S (2011). Corpus Design for a Unit Selection TtS System with Application to Bulgarian. In Z. Vetulani (editor), Human Language Technology. Challenges for Computer Science and Linguistics. Berlin/Heidelberg : Springer. [...] 
• Raptis, S., Chalamandaris, A., Tsiakoulis, P. & Karabetsos, S. (2011). The ILSP Text-to-Speech System for the Blizzard Challenge 2011. In The Blizzard Challenge 2011. Turin, Italy. [...] 
• Chalamandaris, A. (2011). Advanced Design and Development Techniques for the Creation of Time-Domain Text-to-Speech System. Phd Thesis, NTUA, Athens. [...] 
• Raptis, S., Chalamandaris, A., Tsiakoulis, P. & Karabetsos, S. (2010). The ILSP Text-to-Speech System for the Blizzard Challenge 2010. In Proc. Blizzard Challenge 2010 Workshop. Kyoto, Japan. [...] 
• Protopapas, A., Tzakosta, Μ., Chalamandaris, A. & Tsiakoulis, P. (2010). IPLR: an online resource for Greek word-level and sublexical information. Language Resources & Evaluation. [...] 
• Karabetsos, S., Tsiakoulis, P., Chalamandaris, A. & Raptis, S. (2010). One-Class Classification for Spectral Join Cost Calculation in Unit Selection Speech Synthesis. IEEE Signal Processing Letters, 17(8), 746-749. [...] 
• Chalamandaris, A., Karabetsos, S., Tsiakoulis, P. & Raptis, S. (2010). A Unit Selection Text-to-Speech Synthesis System Optimized for Use with Screen Readers. IEEE Transactions on Consumer Electronics, 56(3), 1890-1897. [...] 
• Chalamandaris, A., Tsiakoulis, P., Raptis, S. & Karabetsos, S. (2009). Design of an Efficient Corpus for High-Quality Unit Selection TTS for Bulgarian. In Proc. 4th Language & Technology Conference: Human Language Technologies as a Challenge for Computer Science and Linguistics. Poland. [...] 
• Chalamandaris, A., Tsiakoulis, P., Karabetsos, S. & Raptis, S. (2009). An Efficient and Robust Pitch Marking Algorithm on the Speech Waveform for TD-PSOLA. In Proc. Intl. IEEE Conference on Signal and Image Processing Applications (ICSIPA). Malaysia. [...] 
• Raptis, S., Tsiakoulis, P., Chalamandaris, A. & Karabetsos, S. (2009). High Quality Unit-Selection Speech Synthesis for Bulgarian. In Proc. 13th International Conference on Speech and Computer (SPECOM'2009). St. Petersburg, Russia. [...] 
• Karabetsos, S., Tsiakoulis, P., Chalamandaris, A. & Raptis, S. (2009). Embedded Unit Selection Text-to-Speech Synthesis for Mobile Devices. IEEE Transactions on Consumer Electronics, 56(2). [...] 
• Raptis, S., Tsiakoulis, P., Chalamandaris, A. & Karabetsos, S (2009). User Interaction Design for a Home-Based Telecare System. In A. Holzinger & K. Miesenberger (editors), Human-computer interaction and Usability for eInclusion. Berlin / Heidelberg : Springer. [...] 
• Chalamandaris, A., Raptis, S., Tsiakoulis, P. & Karabetsos, S (2009). Enhancing Accessibility of Web Content for the Print-Impaired and Blind People. In A. Holzinger & K. Miesenberger (editors), Human-computer interaction and Usability for eInclusion. Berlin / Heidelberg : Springer. [...] 
• Tsiakoulis, P., Chalamandaris, A., Karabetsos, S. & Raptis, S. (2008). A Statistical Method for Database Reduction for Embedded Unit Selection Speech Synthesis. In IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2008), pages 759-762. USA, Las Vegas. [...] 
• Karabetsos, S., Tsiakoulis, P., Chalamandaris, A. & Raptis, S (2008). HMM-based Speech Synthesis for the Greek Language. In Petr Sojka, Ivan Kopecek & Karel Pala (editors), Text, Speech and Dialogue. Berlin / Heidelberg : Springer. [...] 
• Dimou, A. & Chalamandaris, A. (2008). Is idiom identification possible from prosodic information? An experimental approach for the Greek language?. In Speech Prosody Conference 2008. Campinas, Brazil. [...] 
• Chalamandaris, A., Protopapas, A., Tsiakoulis, P. & Raptis, S. (2006). All Greek to me! An automatic Greeklish to Greek Transliteration System. In 5th International Conference on Language Resources and Evaluation (LREC 2006). Genoa, Italy. [...] 
• Dimou, A. & Chalamandaris, A. (2006). Language identification from suprasegmental cues: Speech synthesis of Greek utterances from different dialectal variations. In LREC Conference 2006. Genoa, Italy. [...] 
• Dimou, A. & Chalamandaris, A. (2006). Dialect identification through prosodic information: an experimental approach. In Speech Prosody Conference 2006. Dresden, Germany. [...] 
• Dimou, A. & Chalamandaris, A. (2006). Language identification from suprasegmental cues: examining the role of rhythm in the identification of a dialect. In Spoken Communication Conference. Napoli, Italy. [...] 
• Raptis, S., Askenfelt, A., Fober, D., Chalamandaris, A., Schoonderwaldt, E., Letz, S. et al. (2005). IMUTUS – An Effective Practicing Environment For Music Tuition. In International Computer Music Conference (ICMC 2005). Barcelona, Spain. [...] 
• Chalamandaris, A., Raptis, S. & Tsiakoulis, P. (2005). Rule-based grapheme-to-phoneme method for the Greek. In Proc. Interspeech’2005: 9th European Conference on Speech Communication and Technology. Lisbon, Portugal. [...] 
• Raptis, S. & Chalamandaris, A. (2005). IMUTUS - Interactive Music Tuition System. In 5th Open MusicNetwork Workshop. Vienna, Austria. [...] 
• Dimou, A. & Chalamandaris, A. (2005). An experimental approach on dialect identification of ones mother tongue. In Discourse - Prosody Interface Conference (IDP05). Aix-en-Provence, France. [...] 
• Chalamandaris, A., Tsiakoulis, P., Raptis, S., Giannopoulos, G. & Carayannis, G. (2004). Bypassing Greeklish!. In Proc. LREC 2004: 4th International Conference on Language Resources And Evaluation. Lisbon, Portugal. [...] 
• Chalamandaris, A., Tsiakoulis, P., Raptis, S. & Giannopoulos, G. (2004). An Efficient and Robust Algorithm for Bypassing Greeklish. In Proc. IC-SCCE 2004: 1st International Conference from Scientific Computing to Computational Engineering, pages 8-10 September. Athens, Greece. [...] 
• Giannopoulos, G., Chalamandaris, A., Fotinea, S., Athanaselis, T. & Carayannis, G. (2003). Analysis and modelling of the Carrier Declination for the Greek language. In Proc. of the 15th International Congress of Phonetic Sciences - ICPhS03. Barcelona, Spain. [...] 
• Chalamandaris, A. (2001). Voice transformation through prosodic and spectral modification. Master Thesis, Imperial University. [...] 
• Founda, M., Tambouratzis, G., Chalamandaris, A. & Carayannis, G. (2001). Reducing Spectral Mismatches in Concatenative Speech Synthesis via Systematic Database Enrichment. In Proceedings of the Eurospeech-2001 Conference, pages 837-840. Aalborg, Denmark. [...] 
• Founda, M., Chalamandaris, A., Tambouratzis, G. & Carayannis, G. (2001). Studying the Factors Affecting the Optimal Unit Selection Algorithm for a TTS System for the Greek Language.. In Proceedings of the 4th European Conference on Noise Control,, pages 758-764. Patra, Greece. [...]