But ASR system for BABEL Surprise evaluation 2014

Autor: Frantisek Grezl, Karel Vesely, Mirko Hannemann, Igor Szöke, Jan Cernocky, Lukas Burget, Martin Karafiat
Rok vydání: 2014
Předmět:
Zdroj: SLT
Popis: The paper describes Brno University of Technology (BUT) ASR system for 2014 BABEL Surprise language evaluation (Tamil). While being largely based on our previous work, two original contributions were brought: (1) speaker-adapted bottle-neck neural network (BN) features were investigated as an input to DNN recognizer and semi-supervised training was found effective. (2) Adding of noise to training data outperformed a classical de-noising technique while dealing with noisy test data was found beneficial, and the performance of this approach was verified on a relatively clean training/test data setup from a different language. All results are reported on BABEL 2014 Tamil data.
Databáze: OpenAIRE