International Science Community Association Research Journal of Forensic Sciences 14 2 2026 07 29 Acoustic analysis of Emotional Modulation in Speech: from Emotionally Neutral to Emotionally Aroused state 34 38 EN Karthik G.I. Vaishnav 1 Department of Criminology & Forensic Science, Nehru Arts and Science College, Coimbatore, India K. Dinsha 2 Department of Forensic Science, M E S Kalladi College, Mannarkadu, Palakkad, Kerala, India R. Dhanya 3 Department of Criminology & Forensic Science, Nehru Arts and Science College, Coimbatore, India Kulkani Sudhanva G. 4 Department of Criminology & Forensic Science, Nehru Arts and Science College, Coimbatore, India S.S. Nidhin 5 Department of Criminology & Forensic Science, Nehru Arts and Science College, Coimbatore, India Bose Surajit 1 Department of Oral Maxillofacial Pathology Microbiology; Forensic Odontology, Kusum Devi Sunderlal Dugar Jain Dental College & Hospital, Ram Gopal Ghosh Road, Cossipore, Kolkata, West Bengal, India Shetty Rakshith 2 Department of Oral Maxillofacial Pathology Microbiology; Forensic Odontology, Kusum Devi Sunderlal Dugar Jain Dental College & Hospital, Ram Gopal Ghosh Road, Cossipore, Kolkata, West Bengal, India Bhattachrya Maumita 3 Department of Oral Maxillofacial Pathology Microbiology; Forensic Odontology, Kusum Devi Sunderlal Dugar Jain Dental College & Hospital, Ram Gopal Ghosh Road, Cossipore, Kolkata, West Bengal, India Sen Subhalakshmi 4 Department of Oral Maxillofacial Pathology Microbiology; Forensic Odontology, Kusum Devi Sunderlal Dugar Jain Dental College & Hospital, Ram Gopal Ghosh Road, Cossipore, Kolkata, West Bengal, India Chattopadhyay Jayanta 5 Department of Oral Maxillofacial Pathology Microbiology; Forensic Odontology, Kusum Devi Sunderlal Dugar Jain Dental College & Hospital, Ram Gopal Ghosh Road, Cossipore, Kolkata, West Bengal, India Ghosh Bitan 6 Department of Oral Maxillofacial Pathology Microbiology; Forensic Odontology, Kusum Devi Sunderlal Dugar Jain Dental College & Hospital, Ram Gopal Ghosh Road, Cossipore, Kolkata, West Bengal, India Rahangdale Labhini 1 Schiio of Biosciences and Bioengineering, Division of Forensic Science, DY Patil International University, Akurdi, Pune, Maharashtra-411044, India Dharmalingam Lokashree 2 Division of Forensic Science, Karunya Institute of Technology and Sciences, Coimbatore, Tamil Nadu-641114, India Mishra Manish Kumar 1 Department of Forensic Science, JAIN (deemed-to-be-University), Bengaluru, Karnataka, India Y. Kavya 2 Department of Forensic Science, JAIN (deemed-to-be-University), Bengaluru, Karnataka, India Lavanya T. 1 Department of Forensic Science, JAIN (Deemed-to-be University), Bengaluru, Karnataka, India M.K. Mishra 2 Department of Forensic Science, JAIN (Deemed-to-be University), Bengaluru, Karnataka, India . Chandrashekhara 1 Regional Forensic Science Laboratory, Govt. of Karnataka, Mysore, Karnataka, India H.S. Chandrashekhar 2 Regional Forensic Science Laboratory, Govt. of Karnataka, Mysore, Karnataka, India Limbitot Mahantappa 3 Regional Forensic Science Laboratory, Govt. of Karnataka, Hubballi, Karnataka, India B.S. Subhash 4 Regional Forensic Science Laboratory, Govt. of Karnataka, Mysore, Karnataka, India Singh Shreya 1 School of Studies in Forensic Science, Samrat Vikramaditya University, Ujjain, MP, India Solanki Shalini 2 School of Studies in Forensic Science, Samrat Vikramaditya University, Ujjain, MP, India Ahirwar Ganpat 3 School of Studies in Forensic Science, Samrat Vikramaditya University, Ujjain, MP, India > Research Paper 2026 5 22 2026 07 29 Speech emotion analysis is important in forensic phonetics and speech technology because emotions can change how speech sounds. This study looked at how feelings like anger, sadness, fear, and happiness affect the sound of speech by comparing them with calm speech. The research used a quantitative repeated-measures approach with 30 female students who speak Hindi and are between 18 and 24 years old. They were from Vidyottama Hostel at Vikram University in Ujjain. Speech samples were recorded using Audacity and analysed in Praat to look at pitch, loudness, speaking time, and pauses. The results showed that anger and happiness have increased pitch and loudness, whereas sadness produced softer and slower speech patterns. The study suggests that simple tools for analysing speech sounds can be useful in forensic and clinical work. Copyright@ International Science Community Association