Filtering the time sequences of spectral parameters for speech recognition
Speech Communication
Time and frequency filtering of filter-bank energies for robust HMM speech recognition
Speech Communication - Special issue on noise robust ASR
Speaker Diarization for Conference Room: The UPC RT07s Evaluation System
Multimodal Technologies for Perception of Humans
Acoustic Speaker Identification: The LIMSI CLEAR'07 System
Multimodal Technologies for Perception of Humans
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In this paper, the authors describe the UPC speaker identification system submitted to the CLEAR'07 (Classification of Events, Activities and Relationships) evaluation. Firstly, the UPC single distant microphone identification system is described. Then the use of combined microphone inputs in two different approaches is also considered. The first approach combines signals from several microphones to obtain a single enhanced signal by means a delay and sum algorithm. The second one fuses the decision of several single distant microphone systems. In our experiments, the latter approach has provided the best results for this task.