Methods and apparatus to verify and/or correct media lineup information
Methods and apparatus to verify and/or correct media lineup information are disclosed. Disclosed example apparatus include a comparator to compare media presentation data representative of media output by a set top box to reference data corresponding to a first station to determine whether the media presentation data corresponds to the reference data, the media presentation data collected while the set top box was tuned to a first channel number. The comparator is also to determine a second station that corresponds to the media presentation data when the media presentation data does not correspond to the reference data, and relate the first channel number to the second station to create a second channel map to replace a first channel map that related the first channel number to the first station based on channel lineup information for the set top box.
1. An apparatus comprising:
a comparator to:
compare media presentation data representative of media output by a set top box to reference data associated with first reference media corresponding to a first station to determine whether the media presentation data corresponds to the reference data, the media presentation data collected while the set top box was tuned to a first channel number;
a signature comparator to, when the media presentation data does not correspond to the reference data:
identify a plurality of first signatures in a database that match a plurality of second signatures included in the media presentation data, the plurality of first signatures including at least one of first audio signatures or first video signatures, the plurality of second signatures including at least one of second audio signatures or second video signatures generated from the media output by the set top box;
determine second reference media corresponding to the first signatures; and
determine that a second station was scheduled to present the second reference media at times at which the second signatures were generated, wherein the comparator is to relate the first channel number to the second station to create a second channel map to replace a first channel map that relates the first channel number to the first station based on channel lineup information for the set top box, the channel lineup information corresponding to a geographic area associated with the set top box; and
memory to store the media presentation data.
2. The apparatus of claim 1 , further including a script generator to generate a script, the script including instructions that, when executed, cause a computing device to issue a sequence of commands to the set top box.
3. The apparatus of claim 2 , wherein the media presentation data includes a first watermark extracted from the media, the reference data includes a second watermark corresponding to the first station, and further including a watermark identifier to:
look up the first station in the database based on the first channel map; and
obtain the second watermark from the database.
4. The apparatus of claim 3 , wherein, when the media presentation data does not correspond to the reference data, the watermark identifier is to:
determine a second channel number that corresponds to the first station by:
comparing the second watermark to other watermarks in the media presentation data to determine a third watermark in the media presentation data that matches the second watermark;
determining a time at which the third watermark was collected from media output by the set top box; and
determining the second channel number to be a channel to which the set top box was tuned at the time based on the script.
5. The apparatus of claim 3 , wherein the media presentation data includes an ID3 tag, the ID3 tag including the first watermark.
6. The apparatus of claim 2 , wherein the reference data includes third signatures representative of the first reference media, the first reference media is scheduled to be presented on the first station according to a program schedule, and the signature comparator is to:
look up the first station in the database based on the times at which the second signatures were generated; and
obtain the third signatures from the database.
7. The apparatus of claim 6 , wherein, when the media presentation data does not correspond to the reference data, the signature comparator is to determine a second channel number that corresponds to the first station by:
comparing the third signatures to fourth signatures in the media presentation data, the fourth signatures generated when the set top box was tuned to the second channel number; and
determining the second channel number to be the channel to which the set top box was tuned based on the script when the fourth signatures were generated.
8. The apparatus of claim 1 , further including a lineup interpreter to identify the first channel map based on channel lineup information for the set top box, the channel lineup information corresponding to the geographic area associated with the set top box.
9. The apparatus of claim 1 , wherein the media presentation data is generated from audio output from a media presentation device, the media presentation device to output the audio based on the media output by the set top box.
10. A non-transitory computer readable medium comprising instructions which, when executed, cause a processor to at least:
compare media presentation data representative of media output by a set top box to reference data associated with first reference media corresponding to a first station to determine whether the media presentation data corresponds to the reference data, the media presentation data collected while the set top box was tuned to a first channel number;
when the media presentation data does not correspond to the reference data:
identify a plurality of first signatures in a database that match a plurality of second signatures included in the media presentation data, the plurality of first signatures including at least one of first audio signatures or first video signatures, the plurality of second signatures including at least one of second audio signatures or second video signatures generated from the media output by the set top box;
determine second reference media corresponding to the first signatures; and
determine that a second station was scheduled to present the second reference media at times at which the second signatures were generated;
relate the first channel number to the second station to create a second channel map to replace a first channel map that relates the first channel number to the first station based on channel lineup information for the set top box, the channel lineup information corresponding to a geographic area associated with the set top box; and
store the media presentation data.
11. The non-transitory computer readable medium of claim 10 , wherein the instructions cause the processor to generate a script including instructions that, when executed, cause a computing device to issue a sequence of commands to the set top box.
12. The non-transitory computer readable medium of claim 11 , wherein the media presentation data includes a first watermark extracted from the media, the reference data includes a second watermark corresponding to the first station, and the instructions cause the processor to:
look up the first station in the database; and
obtain the second watermark from in the database.
13. The non-transitory computer readable medium of claim 12 , wherein, when the media presentation data does not correspond to the reference data, the instructions cause the processor to:
determine a second channel number that corresponds to the first station by:
comparing the second watermark to other watermarks in the media presentation data to determine a third watermark that matches the second watermark;
determining a time at which the third watermark was collected from media output by the set top box; and
determining the second channel number to be the channel to which the set top box was tuned at the time based on the script.
14. The non-transitory computer readable medium of claim 12 , wherein the media presentation data includes an ID3 tag, the ID3 tag including the first watermark.
15. The non-transitory computer readable medium of claim 11 , wherein the reference data includes third signatures representative of the first reference media, the first reference media is scheduled to be presented on the first station according to a program schedule, and the instructions cause the processor to:
look up the first station in the database based on the times at which the second signatures were generated; and
obtain the third signatures from the database.
16. The non-transitory computer readable medium of claim 15 , wherein, when the media presentation data does not correspond to the reference data, the instructions cause the processor to determine a second channel number that corresponds to the first station by:
comparing the third signatures to fourth signatures in the media presentation data, the fourth signatures generated when the set top box was tuned to the second channel number; and
determining the second channel number to be the channel to which the set top box was tuned based on the script when the fourth signatures were generated.
17. The non-transitory computer readable medium of claim 10 , wherein the instructions cause the processor to identify the first channel map based on channel lineup information for the set top box, the channel lineup information corresponding to the geographic area in which the set top box is located.
18. The non-transitory computer readable medium of claim 10 , wherein the media presentation data is generated from audio output from a media presentation device, the media presentation device to output the audio based on the media output by the set top box.
19. A method comprising: comparing, by executing an instruction with a processor, media presentation data representative of media output by a set top box to reference data associated with first reference media corresponding to a first station to determine whether the media presentation data corresponds to the reference data, the media presentation data collected while the set top box was tuned to a first channel number;
when the media presentation data does not correspond to the reference data:
identifying, by executing an instruction with the processor, a plurality of first signatures in a database that match a plurality of second signatures included in the media presentation data, the plurality of first signatures including at least one of first audio signatures or first video signatures, the plurality of second signatures including at least one of second audio signatures or second video signatures generated from the media output by the set top box;
determining, by executing an instruction with the processor, second reference media corresponding to the first signatures; and
determining, by executing an instruction with the processor, that a second station was scheduled to present the second reference media at times at which the second signatures w ere generated;
relating, by executing an instruction with the processor, the first channel number to the second station to create a second channel map to replace a first channel map that relates the first channel number to the first station based on channel lineup information for the set top box. the channel lineup information corresponding to a geographic area associated with the set top box; and storing the media presentation data.
20. The method of claim 19 , further including generating a script, the script including instructions that, when executed, cause a computing device to issue a sequence of commands to the set top box.