Variation in speech exists across different speakers and can be measured and accounted for articulatory differences accurately in acoustic terms. The study analyzes the acoustic phonetic features of Railway announcements. Acoustic structure of various consonants such as plosives, affricates, fricatives & nasals (except semi-consonants are measured and each class of consonants), are discussed in detail. The book is the first study undertaken, and needs further investigation to reaffirm the variations taking other sociolinguistic factors of the speakers into view. The investigation is based on...