Speech recognition Speech communication 22 Speaker recognition 14 Speech processing 12 Calibration 10 Speech 8 Acoustic conditions 6 Bottleneck features 6 Computational linguistics 6 Deep neural networks 6 Gaussian Mixture Model 6 Language recognition 6 Speaker recognition evaluations 6 Speaker recognition system 6 Speech activity detections 6 Spoken language recognition 6 Character recognition 4 Computer aided instruction 4 Computer assisted language learning 4 Computer-assisted language learning 4 Database systems 4 E-learning 4 Linguistics 4 Speech activity detection 4 Statistical tests 4 Text independents 4 Training data 4 Accuracy Improvement 2 Acoustic characteristic 2 Active Learning 2