Yankai Wang, Hua Long, Yubin Shao, Qingzhi Du, Yao Wang. Language Identification Using Joint Voice Activity Detection and Dynamic Range Control[J]. Laser & Optoelectronics Progress, 2022, 59(13): 1307001
- Laser & Optoelectronics Progress
- Vol. 59, Issue 13, 1307001 (2022)
Fig. 1. MFCC0 feature voice activity detection. (a) Voice waveform; (b) MFCC0 features; (c) MFCC0 feature voice activity detection result after median filtering
Fig. 2. DRC input/output processing unit
Fig. 3. Voice changes before and after DRC processing. (a) Voice waveform changes before and after DRC processing; (b) spectropram before DRC processing; (c) spectropram after DRC processing
Fig. 4. Comparison of different frequency scales. (a) Linear scale spectrogram; (b) log scale spectrogram
Fig. 5. Flow chart of language recognition
Fig. 6. Multi-classification task evaluation parameters
Fig. 7. Results of different frequency coordinate scales
Fig. 8. Resnet classification results
Fig. 9. ResNeSt classification results
Fig. 10. Language recognition result confusion matrix
|
Table 1. Probability distribution change before and after VAD
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Table 2. Data allocation of training set and testing set
|
Table 3. Comparison of language identification results of several different features
Set citation alerts for the article
Please enter your email address
© Copyright 2018-2021 | Chinese Laser Press. All Rights Reserved 沪ICP备15018463号-20