Image-based features for speech signal classification

Mukherjee, Himadri; Dhar, Ankita; Obaidullah, Sk Md; Phadikar, Santanu

doi:10.1007/s11042-019-08553-6

Cited by 9 publications

(1 citation statement)

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“…The conclusion is that the accuracy of the corresponding data is 96.23% and 86.7% respectively. Mukherjee et al [11] presented a system to display voice signal patterns, which has image-based features for language identification. As a result of testing in the top four languages of South India, the average precision was 0.95, with encouraging results.…”

Section: Related Workmentioning

confidence: 99%

Development of Parametric Filter Banks for Sound Feature Extraction

Cai,

2023

IEEE Access

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A kind of learnable parametric filter banks is proposed in this paper. Parametric filter banks refer to selecting learnable parameters from the original filter banks and learning a parameter filter banks that adapts to the current dataset through the learning ability of a neural network. We use three types of filter banks, including the popular Mel filter banks, the Gammatone filter banks that mimics the response of the human auditory filter in the cochlea, and our own Gaussian filter banks. The performance evaluation of parametric filter banks is conducted on a speech recognition dataset called Audio-MNIST which contains the spoken digit pronunciation and a self-created news speech dataset called Ten Languages which include ten different language countries. Comparative experiments are conducted on both Convolutional Neural Network (CNN) and Full-Connected Neural Network (FCNN) for classification. The experimental results show that the parametric filter banks outperforms the original filter banks in the comparative experiment, and the parametric Gammatone filter banks achieves the highest accuracy of 98.77% and 92.14% on the Audio MNIST dataset and test data in ten languages. In order to further confirm the performance of the model, the number of class data in the dataset is different. We also use weighted average F1-score as the evaluation metric, with a maximum of 0.99 and 0.92.

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Section: Related Workmentioning

confidence: 99%