1. HIWIRE MEETING Chania, May 10-11, 2007 José C. Segura

2. 2 HIWIRE Meeting – Chania, 10 -11 May, 2007 Schedule  IS07 Setup  Final reference results  PEQ  IS07 Setup results  LOQUENDO recognizer results  Improvements?  Progressive equalization  On-line implementation

3. 3 HIWIRE Meeting – Chania, 10 -11 May, 2007 IS07 final baseline results  Small differences: training scripts changed (without ‘sa’) TEST ALL CLEAN results

4. 4 HIWIRE Meeting – Chania, 10 -11 May, 2007 Robust Non-Native Task (RNN)  Results for TEST data only

5. 5 HIWIRE Meeting – Chania, 10 -11 May, 2007 Non-Native Adaptation Task (NNA)  Speaker adaptation test (clean data)

6. 6 HIWIRE Meeting – Chania, 10 -11 May, 2007 Non-Native Adaptation Task (NNA)  Simultaneous speaker/noise adaptation 50 utt. Base

7. 7 HIWIRE Meeting – Chania, 10 -11 May, 2007 PEQ: Robust Non-Native Task (RNN)  Results for TEST data only Base PEQ

8. 8 HIWIRE Meeting – Chania, 10 -11 May, 2007 PEQ: Non-Native Adaptation Task (NNA)  Speaker adaptation test (clean data) BASE PEQ

9. 9 HIWIRE Meeting – Chania, 10 -11 May, 2007 PEQ: Non-Native Adaptation Task (NNA)  Simultaneous speaker/noise adaptation PEQ Base*

10. 10 HIWIRE Meeting – Chania, 10 -11 May, 2007 PEQ/LOQUENDO  Paper submitted to INTERSPEECH’07 AURORA2 AURORA3

11. 11 HIWIRE Meeting – Chania, 10 -11 May, 2007 PEQ/LOQUENDO (2)

12. 12 HIWIRE Meeting – Chania, 10 -11 May, 2007 Progressive normalization  Normalization up to a certain MFCC in HEQ gives the best performance in AURORA2

13. 13 HIWIRE Meeting – Chania, 10 -11 May, 2007 Progressive normalization (2)  Same idea tested for PEQ  Preliminary results for HIWIRE. Averaged for Clean/LN/MN/HN

14. 14 HIWIRE Meeting – Chania, 10 -11 May, 2007 PEQ: On-line implementation  Recursive estimation of mean + variance of speech & noise classes  Results do not improve the baseline  More work is needed

15. HIWIRE MEETING Chania, May 10-11, 2007 José C. Segura