Text-Dependent voice biometrics requires users to repeat specific phrases or words, often the same ones used during enrollment. This approach is ideal for secure authentication scenarios like mobile banking, where the phrase acts as a consistent identifier.
Text-Independent (also known as conversational) voice biometrics, on the other hand, does not rely on specific phrases. The system can authenticate users based on natural conversation, making it suitable for scenarios like call centers or virtual assistants, where authentication happens passively without interrupting the user experience.
Spoken Digit systems, like ValidSoft’s See-Say, add an additional layer of security by requiring users to repeat a unique sequence of digits tied to a specific transaction. This ensures not only user identity verification but also the integrity of individual transactions, making it ideal for use cases where a high degree of security is required.