Title	Spectral Analysis of Speech under Stress
Author	Milan Sigmund
Citation	Vol. 7  No. 4  pp. 170-172
Keywords	Emotional speech signal, spectral analysis.

Title	Time-Frequency Analysis of Chanting Sanskrit Divine Sound “OM” Mantra
Author	Ajay Anil Gurjar, Siddharth A. Ladhake
Citation	Vol. 8  No. 8  pp. 170-175
Keywords	Devine Sound, OM, Meditation, Speech signal, Time-Frequency Analysis, DWT, Haar, Daubechies

Title	A Novel Approach to COVID-19 Diagnosis Based on Mel Spectrogram Features and Artificial Intelligence Techniques
Author	Aseel Alfaidi, Abdullah Alshahrani, and Maha Aljohani
Citation	Vol. 22  No. 9  pp. 195-207
Keywords	Artificial Intelligence, COVID-19 diagnosis, Speech signals, Mel spectrogram features, Transfer learning