Dr. Prajna Kunche is currently working as a Research Associate in Non-Destructive Evaluation Division at Indira Gandhi Centre for Atomic Research, Kalpakkam. She pursued her Ph.D., from Andhra University in 2016. Later she had worked as an ad-hoc faculty at National Institute of Technology, Andhra Pradesh. She has published a Springer Brief book in Speech Technology. Currently, she is the Technical reviewer for two Springer Journals and Editorial board member for three international journals. Dr. N. Manikanthababu is currently working as a SERB-National Post-Doctoral Fellow at Material Science Group, at Indira Gandhi Centre for Atomic Research, Kalpakkam. He pursued his Ph.D., from University of Hyderabad, Hyderabad, India in 2016. Later he joined IGCAR as a SERB-National Post-Doctoral Fellow. He has published more than 10 research publications in the field of radiation response of Schottky and MOS devices. Currently, he is developing β–Ga2O3-based devices for high-power electronics.

• Chapter 1. Introduction.- Chapter 2. Fractional Fourier Transform (FRFT).- Chapter 3. Dual channel Speech Enhancement based on Fractional Fourier Transform.- Chapter 4. Fractional Cosine Transform based Single Channel Speech Enhancement Technique.- Chapter 5. Fractional Sine Transform based Single Channel Speech Enhancement Technique.- Chapter 6. Summary and Perspectives.