System and method for detecting synthetic speaker verification
Disclosed herein are systems, methods, and tangible computer readable-media for detecting synthetic speaker verification. The method comprises receiving a plurality of speech samples of the same word or phrase for verification, comparing each of the plurality of speech samples to each other, denying verification if the plurality of speech samples demonstrate little variance over time or are the same, and verifying the plurality of speech samples if the plurality of speech samples demonstrates sufficient variance over time. One embodiment further adds that each of the plurality of speech samples is collected at different times or in different contexts. In other embodiments, variance is based on a pre-determined threshold or the threshold for variance is adjusted based on a need for authentication certainty. In another embodiment, if the initial comparison is inconclusive, additional speech samples are received.
1. A method comprising:
receiving a plurality of stored speech samples of a same word for verifying a user;
comparing, via a processor, each of the plurality of stored speech samples to each other, to yield a variance over time;
receiving speech from the user, distinct from the plurality of stored speech samples, to be verified;
verifying the speech as authentic based on the variance over time, to yield a verification; and
transmitting access data based on the verification.
2. The method of claim 1 , wherein each of the plurality of speech samples is collected in one of a different time and in a different context.
3. The method of claim 1 , wherein the speech is verified as authentic when the speech and the variance over time meet a certainty level.
4. The method of claim 3 , wherein the certainty level is based on a predetermined threshold.
5. The method of claim 3 , wherein the certainty level is one of a plurality of certainty levels, wherein each certainty level of the plurality of certainty levels is associated with a different task.
6. The method of claim 5 , wherein each certainty level of the plurality of certainty levels is associated with a different user.
7. The method of claim 1 , wherein the access data unlocks a cellphone.
8. A system comprising:
a processor; and
a computer-readable storage medium having instructions stored which, when executed by the processor, cause the processor to perform operations comprising:
receiving a plurality of stored speech samples of a same word for verifying a user;
comparing, via a processor, each of the plurality of stored speech samples to each other, to yield a variance over time;
receiving speech from the user, distinct from the plurality of stored speech samples, to be verified;
verifying the speech as authentic based on the variance over time, to yield a verification; and
transmitting access data based on the verification.
9. The system of claim 8 , wherein each of the plurality of speech samples is collected in one of a different time and in a different context.
10. The system of claim 8 , wherein the speech is verified as authentic when the speech and the variance over time meet a certainty level.
11. The system of claim 10 , wherein the certainty level is based on a predetermined threshold.
12. The system of claim 10 , wherein the certainty level is one of a plurality of certainty levels, wherein each certainty level of the plurality of certainty levels is associated with a different task.
13. The system of claim 12 , wherein each certainty level of the plurality of certainty levels is associated with a different user.
14. The system of claim 8 , wherein the access data unlocks a cellphone.
15. A computer-readable storage device having instructions stored which, when executed by a computing device, cause the computing device to perform operations comprising:
receiving a plurality of stored speech samples of a same word for verifying a user;
comparing, via a processor, each of the plurality of stored speech samples to each other, to yield a variance over time;
receiving speech from the user, distinct from the plurality of stored speech samples, to be verified;
verifying the speech as authentic based on the variance over time, to yield a verification; and
transmitting access data based on the verification.
16. The computer-readable storage device of claim 15 , wherein each of the plurality of speech samples is collected in one of a different time and in a different context.
17. The computer-readable storage device of claim 15 , wherein the speech is verified as authentic when the speech and the variance over time meet a certainty level.
18. The computer-readable storage device of claim 17 , wherein the certainty level is based on a predetermined threshold.
19. The computer-readable storage device of claim 17 , wherein the certainty level is one of a plurality of certainty levels, wherein each certainty level of the plurality of certainty levels is associated with a different task.
20. The computer-readable storage device of claim 19 , wherein each certainty level of the plurality of certainty levels is associated with a different user.