The Aholab Signal Processing Laboratory is a research group of the UPV/EHU-University of the Basque Country, with broad experience in voice technologies and digital signal processing. It is a multidisciplinary group made up of lecturers from the Department of Electronics and Telecommunications and the Department of Language and Literature Didactics of the UPV/EHU, as well as grant-holders, and post-doctoral, pre-doctoral contracted researchers and undergraduate students.

The group’s main lines of research are:

  • Text-to-voice conversion
  • Automatic voice recognition
  • Speaker identification and recognition
  • Generation of oral resources

Aholab has developed the first text-to-speech conversion commercially available for Basque, AhoTTS (http://aholab.ehu.es/tts/tts_en.html), as well as many of the oral resources and voice processing tools publicly available for Basque. As such, it is a showcase in the area of speech technologies in the Basque Autonomous Community (region). In the field of voice recognition it is worth highlighting the development of SpeechDat type data bases for Basque and the development of a recognition system for the language.

Within the framework of the BerbaTek project Aholab participates in the areas to do with the voice. Research will be conducted into voice transformation that will enable the signal generated to be provided with expressiveness or the specific features of a speaker. Objective methods for assessing text-to-voice conversion systems will also be studied. Also being looked at is a system for recognising continuous speech in Basque, and another one for connected words in English. These systems will also be used for evaluating response accuracy in teaching applications. The line of research in automatic speaker recognition is reflected in the BerbaTek project in the development of a system of speaker diarization which involves, among other tasks, the detection of turn changes in conversations and the identification of the speaker that is speaking at each moment.

For further information:


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