Waldo Nogueira was born in Barcelona in 1978. He received his Ing. degree (Diplom) in Electrical Engineering from the Universitat Politecnica de Catalunya in 2003. He wrote his diploma thesis 'Envelope estimation of audio signals based on predictive techniques in the frequency domain' as an integrated exchange student at the University of Hannover. Since then he has been working toward the PhD degree at the Institut für Informationsverarbeitung of the University of Hanover. His research interests are audio signal processing, auditory modelling, psychoacoustics and cochlear implants.