SPEAKER IDENTIFICATION FROM SHOUTED SPEECH: ANALYSIS AND COMPENSATION
IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), Vancouver, Kanada, 26 - 31 Mayıs 2013, ss.8027-8031, (Tam Metin Bildiri)
- Yayın Türü: Bildiri / Tam Metin Bildiri
- Cilt numarası:
- Doi Numarası: 10.1109/icassp.2013.6639228
- Basıldığı Şehir: Vancouver
- Basıldığı Ülke: Kanada
- Sayfa Sayıları: ss.8027-8031
- Bursa Uludağ Üniversitesi Adresli: Evet
Özet
Text-independent speaker identification is studied using neutral and shouted speech in Finnish to analyze the effect of vocal mode mismatch between training and test utterances. Standard mel-frequency cepstral coefficient (MFCC) features with Gaussian mixture model (GMM) recognizer are used for speaker identification. The results indicate that speaker identification accuracy reduces from perfect (100 %) to 8.71 % under vocal mode mismatch. Because of this dramatic degradation in recognition accuracy, we propose to use a joint density GMM mapping technique for compensating the MFCC features. This mapping is trained on a disjoint emotional speech corpus to create a completely speaker- and speech mode independent emotion-neutralizing mapping. As a result of the compensation, the 8.71 % identification accuracy increases to 32.00 % without degrading the non-mismatched train-test conditions much.