TY  - EJOU
AU  - Uddin, Mohammad Amaz 
AU  - Chowdury, Mohammad Salah Uddin 
AU  - Khandaker, Mayeen Uddin 
AU  - Tamam, Nissren 
AU  - Sulieman, Abdelmoneim 

TI  - The Efficacy of Deep Learning-Based Mixed Model for Speech Emotion Recognition
T2  - Computers, Materials \& Continua

PY  - 2023
VL  - 74
IS  - 1
SN  - 1546-2226

AB  - Human speech indirectly represents the mental state or emotion of others. The use of Artificial Intelligence (AI)-based techniques may bring revolution in this modern era by recognizing emotion from speech. In this study, we introduced a robust method for emotion recognition from human speech using a well-performed preprocessing technique together with the deep learning-based mixed model consisting of Long Short-Term Memory (LSTM) and Convolutional Neural Network (CNN). About 2800 audio files were extracted from the Toronto emotional speech set (TESS) database for this study. A high pass and Savitzky Golay Filter have been used to obtain noise-free as well as smooth audio data. A total of seven types of emotions; Angry, Disgust, Fear, Happy, Neutral, Pleasant-surprise, and Sad were used in this study. Energy, Fundamental frequency, and Mel Frequency Cepstral Coefficient (MFCC) have been used to extract the emotion features, and these features resulted in 97.5% accuracy in the mixed LSTM + CNN model. This mixed model is found to be performed better than the usual state-of-the-art models in emotion recognition from speech. It also indicates that this mixed model could be effectively utilized in advanced research dealing with sound processing.
KW  - Emotion recognition; Savitzky Golay; fundamental frequency; MFCC; neural networks

DO  - 10.32604/cmc.2023.031177