Method and system for testing audio server

• US 8,036,346 B2
• Filed: 12/13/2005
• Issued: 10/11/2011
• 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 James
• Primary Examiner(s): Sing; Simon
• Assistant Examiner(s): Mohammed; Assad
• Application Number:
  US11/301,623
• Publication Number:
  US 20070136416A1
• Time in Patent Office: 2,128 Days
• Field of Search: 379 2601- 31, 379 8801- 8824, 370352-363, 704270-278, 709/219, 709/223
• US Class Current: 379/88.18
• 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 testing, with a media server testing system, operations of a media server, the method comprising:

dividing, using a media server testing system, a prompt into one or more chunked prompts, wherein the one or more chunked prompts are based on a size of a packet;

generating, using the media server testing system, a chunk signature for each of the one or more chunked prompts;

storing the chunk signatures in a memory associated with the media server testing system;

sending, with the media server testing system, a request to the media server;

receiving, with the media server testing system, one or more chunked prompts from the media server in response to the request;

generating, with the media server testing system, a signature for each of the received one or more chunked prompts to define a generated signature;

for each of the received one or more chunked prompts, comparing the generated signature with the respective chunk signature stored in the memory;

based on results of the comparison of the generated signature with the respective chunk signature for each of the received one or more chunked prompts, determining whether the generated signatures correctly correspond with the respective chunk signatures stored in the memory; and

verifying that the media server is operating correctly based on results of the determination of whether the generated signatures correctly correspond with the respective chunk signatures stored in the memory.

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, wherein the storing of the chunked prompts comprises replacing each of the plurality of prompts with the chunked prompts.

4. The method of claim 2, further comprising determining that the one or more chunked prompts are based on the size of the packet.

5. The method of claim 4, wherein determining the size of the packet comprises:

assessing size information for the packet; and

regulating information for the packet.

6. The method according to claim 1, further comprising:

generating, before receiving, a chunk signature for each chunked prompt; and

storing the chunk signature in the memory, defining a stored generated signature.

7. The method according to claim 6, further including:

comparing the generated signature with the stored generated signature;

tweaking the chunk if the generated signature matches the stored signature;

generating a signature for the tweaked chunk, defining a tweaked signature; and

storing the tweaked signature.

8. The method according to claim 7, wherein the tweaking further comprises modifying one or more least significant bits of one of a plurality of samples, wherein the chunk comprises the plurality of samples.

9. The method according to claim 1, wherein the dividing the prompt into one or more chunked prompts further comprises placing a flag at a boundary of a chunked prompt.

10. The method according to claim 9, wherein the flag placing comprises duplicating a sample at the boundary of the chunked prompt, the chunked prompt comprising a plurality of samples.

11. The method according to claim 9, wherein the placing the flag at the boundary of the chunked prompt comprises tweaking a portion of the chunked prompt if the portion comprises the flag.

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

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

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

15. A system for testing operations of a media server comprising one or more chunked prompts, the system comprising:

a prompt chunking module comprising;

a first module for dividing a prompt into one or more chunked prompts, wherein a size of a chunked prompt is based on a packet size; and

first means for generating a chunk signature from data that defines a chunked prompt included in the one or more chunked prompts, defining a generated signature;

a chunk signature database for storing the chunk signature; and

a verifying system comprising;

a second module for sending a request to the media server;

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

second means for generating a signature for each of the received one or more chunked prompts to define the generated signature; and

for each of the received one or more chunked prompts, a comparison module for comparing the generated signature with the respective chunk signature stored in the chunk signature database; and

based on results of the comparison of the generated signature with the respective chunk signature for each of the received one or more chunked prompts, a processor for verifying that the media server is operating correctly by determining whether the generated signatures correctly correspond with the respective chunk signatures stored in memory.

16. The system according to claim 15, wherein the prompt chunking module further comprises means for dividing each of the one or more prompts into chunked prompts, wherein the media server comprises the one or more prompts.

17. The system according to claim 15 wherein the first means for generating generates one or more additional chunk signatures for additional data associated with the one or more chunked prompts and the second module for sending sends one or more additional requests to the media server and the third module for receiving receives additional information corresponding to the one or more chunked prompts in responses to the one or more additional requests and the second means for generating generates, from the additional data, additional signatures, defining one or more additional generated signatures and the comparison module compares the one or more additional chunk signatures with the additional generated signatures.

18. A method for testing, with a media server testing system, operations of a media server, the method comprising:

dividing, using the media server testing system, a prompt into one or more chunked prompts, wherein the one or more chunked prompts are based on a size of a packet;

generating, using the media server testing system, a chunk signature for each of the one or more chunked prompts;

storing the chunk signatures in a memory associated with the media server testing system;

sending, with the media server testing system, a plurality of requests to the media server;

receiving, with the media server testing system, one or more chunked prompts from the media server in response to the request;

generating, with the media server testing system, a signature for each of the received one or more chunked prompts to define a generated signature;

for each of the received one or more chunked prompts, comparing the generated signature with the respective chunk signature stored in the memory;

based on results of the comparison of the generated signature with the respective chunk signature for each of the received one or more chunked prompts, determining whether the generated signatures correctly correspond with the respective chunk signatures stored in the memory; and

verifying that the media server is operating correctly based on results of the determination of whether the generated signatures correctly correspond with the respective chunk signatures stored in the memory.

19. The method according to claim 18 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.

20. The method according to claim 19, wherein the storing of the chunked prompts comprises replacing each of the plurality of prompts with the chunked prompts.

21. The method according to claim 19, wherein the dividing each of the plurality of prompts further comprises placing a flag at a boundary of each of the chunked prompts.

22. The method according to claim 21, wherein the flag placing at a boundary of a chunked prompt comprises duplicating a sample at the boundary of the chunked prompt, the chunked prompt comprising a plurality of samples.

23. The method according to claim 21, wherein the placing the flag at a boundary of a chunked prompt comprises tweaking a portion of the chunked prompt if the portion comprises the flag.

24. The method according to claim 18 further comprising:

generating, before receiving, a chunk signature for each chunked prompt; and

storing the chunk signature in the memory.

25. The method according to claim 18, 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; and

generating a signature for the tweaked chunk; and

storing the generated signature.

26. The method according to claim 18 further comprises generating the chunk signature using a linear feedback shift register.

27. A system for testing operations of a media server comprising one or more chunked prompts, the system comprising:

a prompt chunking module including a processor for dividing a prompt into one or more chunked prompts, wherein the one or more chunked prompts are based on a size of a packet; and

a computer processor including one or more instructions, that when executed by the computer processor cause the computer processor to perform operations including;

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

storing the chunk signature in a chunk signature database associated with the system;

sending a request to a media server;

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

generating a signature for each of the one or more chunked prompts that define a generated signature;

for each of the received one or more chunked prompts, comparing the generated signature with the respective chunk signature present in the chunk signature database;

based on results of the comparison of the generated signature with the respective chunk signature for each of the received one or more chunked prompts, determining whether the generated signatures correctly correspond with the respective chunk signatures stored in the chunk signature database; and

verifying that the media server is operating correctly based on results of the determination of whether the generated signatures correctly correspond with the respective chunk signatures stored in the chuck signature database.