Method and system for testing audio server

• US 20070136416A1
• Filed: 12/13/2005
• Published: 06/14/2007
• Est. Priority Date: 12/13/2005
• Status: Active Grant

• Current Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Original Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Inventors: Taylor, Kenneth
• Granted Patent: US 8,036,346 B2
• Time in Patent Office: Days
• US Class Current: 709/203
• CPC Class Codes: G10L 15/22 Procedures used during a speech recognition process, e.g. man-machine dialogue
• CPC Class Codes: H04M 2201/40 using speech recognition
• CPC Class Codes: H04M 3/24 with provision for checking the normal operation
• CPC Class Codes: H04M 3/308 Craftsperson test terminals
• CPC Class Codes: H04M 3/493 Interactive information services, e.g. directory enquiries ; Arrangements therefor, e.g. interactive voice response [IVR] systems or voice portals
• CPC Class Codes: H04M 3/533 Voice mail systems

Abstract

A method and system for testing a media server is provided. The media server is capable of delivering prompts simultaneously to a plurality of devices. According to various embodiments, these prompts are present as one or more chunks on the media server. The media server is prepared for testing by generating signatures for each chunk and storing these signatures in a chunk signature database. Thereafter, the testing of the server performed, in which a series of requests are sent to the media server. The media server provides the chunked prompts in response to these requests. These chunked prompts are used to generate signatures, which are compared with the signatures stored in the chunk signature database, to verify whether the media server is operating correctly.

Claims

1. A method for verifying the operation of a media server comprising:

sending a request to the media server;

receiving one or more chunked prompts in response to the request;

generating a signature for each chunk of the received one or more chunked prompts; and

comparing the generated signature for each chunk of the received chunked prompts with an expected signature to verify the correct operation of the media server.

2. The method according to claim 1 further comprising:

dividing each of a plurality of prompts into chunked prompts, wherein the media server comprises the plurality of prompts; and

storing the chunked prompts on the media server.

3. The method according to claim 2 further comprising:

generating a signature for each chunked prompt;

storing the signature in a chunk signature database;

4. The method according to claim 2, wherein the storing of the chunked prompts comprises replacing each of the plurality of prompts with the chunked prompts.

5. The method according to claim 2, wherein the dividing each of the plurality of prompts further comprises placing a flag at a boundary of the chunk.

6. The method according to claim 5, wherein the flag placing comprises duplicating a sample at the boundary of the chunk, the chunk comprising a plurality of samples.

7. The method according to claim 5, wherein the placing the flag at the boundary of the chunk comprises tweaking a portion of the chunk if the portion comprises the flag.

8. The method according to claim 1, wherein the signature storing comprises:

comparing the signature with the stored signature present in the chunk signature database;

tweaking the chunk if the signature exists in the chunk signature database;

generating a signature for the tweaked chunk; and

storing the generated signature.

9. The method according to claim 8, wherein the tweaking comprises modifying one or more least significant bits of one of a plurality of samples, wherein the chunk comprises the plurality of samples.

10. The method according to claim 1 further comprises generating the signature using a linear feedback shift register.

11. The method according to claim 1 further comprises generating the signature using a cyclic redundancy check.

12. The method according to claim 1 further comprises generating the signature using a hash.

13. A method for verifying a media server having a plurality of stored prompts comprising:

receiving at least one request for a selected prompt; and

sending in response to the request one or more chunks corresponding to the selected prompt.

14. The method according to claim 13 further comprising:

receiving the one or more chunks responsive to the at least one request;

generating a signature for each received chunk; and

comparing the generated signature for each chunk to an expected signature to verify the correct operation of the media server.

15. The method according to claim 13 further comprises dividing each of the plurality of prompts into at least one chunk.

16. The method according to claim 13 further comprises storing the chunked prompts in the media server.

17. The method according to claim 14 further comprises:

generating a signature for each of the plurality of chunks; and

storing the signatures in a chunk signature database.

18. A system for verifying the operation of a media server comprising a plurality of chunked prompts, the system comprising:

a prompt chunking module comprising;

means for generating a signature for each chunk in the plurality of chunked prompts;

a chunk signature database for storing the generated signatures; and

a verifying system having the information for linking each signature to a chunk in one of the plurality of chunked prompts, the verifying system comprising

means for sending a request to the media server;

means for receiving one or more chunked prompts from the media server in response to the request;

means for generating a signature for each chunk of the received one or more chunked prompts; and

means for comparing the signature for each chunk of the received chunked prompts with the plurality of signatures stored in the chunk signature database to verify the correct operation of the media server.

19. The system according to claim 18, wherein the prompt chunking module further comprises means for dividing each of a plurality of prompts into chunked prompts, wherein the media server comprises the plurality of prompts.

20. The system according to claim 18 wherein the prompt chunking module further comprises:

means for comparing the generated signature with the signatures stored in the chunk signature database; and

means for tweaking the chunk if the signature exists in the chunk signature database.

21. A media server comprising:

a plurality of chunked prompts; and

means for receiving a request for at least one of the chunked prompts;

22. The media server of claim 21 further comprising:

means, associated with the media server, for generating a signature for each chunk of the requested chunked prompt; and

means, associated with the media server, for comparing the signature of each chunk of the requested chunked prompt to an expected signature.

23. The media server of claim 22 wherein said signature generating means further comprises a linear feedback shift register.

24. The media server of claim 22 wherein said signature generating means and said comparing means are coupled to the media server by a network.

25. The media server of claim 21 wherein the chunked prompts comprise a plurality of chunked audio prompts and chunked video prompts.