Can There be a Biometric Parameter for Voice?—An Investigation Into the Vocal Cry of Twins

The voice of an individual is the result of interaction between the laryngeal and supra-laryngeal structures of a person. Since the laryngeal and supra-laryngeal structures differ from one person to another, the voice produced by each person becomes unique and recognizably different from another person. If this uniqueness in voice can be found in the acoustic parameters of the voice, it can contribute to the fields of forensic speaker identification and voice biometrics. The best methodology for such a study would be a comparison of the voices of twins who have a number of similar characteristics.