Methods and apparatus for transcoding metadata

1. An apparatus to meter a media device, the apparatus comprising:

means for accessing first metadata accompanying media to be presented by the media device, the first metadata conveying a first identifier, the first metadata in a first format not detectable by a meter collecting audience measurement data associated with the media device;

means for transcoding the first metadata into second metadata that is to convey the first identifier, the second metadata to be associated with the media, the second metadata being transcoded to have a second format that is different from the first format, the second metadata having the second format being detectable by the meter and supported by an application programming interface (API) provided by the media device, the API being accessible by the meter; and

means for communicating the second metadata having the second format in a second transmission for receipt by the meter via the API provided by the media device, the second transmission being separate from a first transmission communicating the media and the first metadata having the first format, but the first transmission not communicating the second metadata having the second format different from the first format, to the media device.

2. The apparatus of claim 1 , wherein the first metadata corresponds to at least one of an audio watermark or a video watermark.

3. The apparatus of claim 2 , wherein the second metadata corresponds to digital data formatted according to a data communications protocol.

4. The apparatus of claim 3 , wherein the digital data includes a plurality of data fields.

5. The apparatus of claim 4 , further including means for inserting first information in a first one of the plurality of data fields, the first information corresponding to second information conveyed by the first metadata.

6. The apparatus of claim 5 , wherein the first information corresponds to the first identifier conveyed by the first metadata.

7. The apparatus of claim 1 , wherein the first transmission is communicated via a first communication medium, and the second transmission is communicated via a wireless communication medium different from the first communication medium.

8. An apparatus to transcode metadata included in a media signal conveyed via a network from a first media format associated with a first media consumption device to a second media format detectable by a media metering device configured to collect audience measurement data associated with a second media consumption device, the apparatus comprising:

means for extracting the metadata from the media signal to form extracted metadata;

means for querying the media metering device via the network to determine a capability of the media metering device to monitor a media output signal from the second media consumption device, the second media consumption device communicatively coupled to the network;

means for identifying the second media format based on the determined capability of the media metering device, the second media format detectable by the media metering device;

means for converting the extracted metadata from the first media format associated with the first media consumption device to the identified second media format detectable by the media metering device to form converted media information, the first media consumption device communicatively coupled to the network; and

means for sending the converted media information to at least one of the second media consumption device or the media metering device via the network.

9. The apparatus of claim 8 , wherein the means for identifying the second media format includes means for identifying at least one of an audio watermark sensor, a video watermark sensor, a digital bitstream sensor, a database sensor, or a software sensor associated with the media metering device.

10. The apparatus of claim 8 , wherein the means for converting the extracted metadata from the first media format to the second media format to form the converted media information includes:

means for detecting a watermark associated with the media signal;

means for identifying a signal compression ratio associated with the watermark; and

means for modifying the signal compression ratio based on the second media format.

11. The apparatus of claim 10 , wherein the means for modifying the signal compression ratio based on the second media format includes:

means for comparing an output bit rate associated with the signal compression ratio to a network bit rate associated with the network; and

means for changing the output bit rate based on the network bit rate.

12. The apparatus of claim 8 , wherein the means for converting the extracted metadata from the first media format to the second media format to form the converted media information includes:

means for generating a watermark based on the second media format; and

means for inserting the watermark in the converted media information.

13. The apparatus of claim 8 , wherein the means for converting the extracted metadata from the first media format to the second media format to form the converted media information includes:

means for encoding the extracted metadata in the second media format; and

means for digitally inserting encoded metadata into a bitstream associated with the converted media information.

14. An apparatus to meter media presented by a media consumption device, the apparatus comprising:

means for detecting first metadata accompanying the media presented by the media consumption device, the first metadata being detected in a media signal output from the media consumption device;

means for receiving second metadata from a transcoder, the second metadata associated with the media presented by the media consumption device, the second metadata being received in a second signal different from the media signal output from the media consumption device, the second metadata comprising third metadata that has been transcoded to form the second metadata, wherein the third metadata is not detectable by the apparatus, and the second metadata corresponds to the third metadata after being transcoded into a format capable of being received and processed by the apparatus; and

means for processing the first metadata and the second metadata to meter the media presented by the media consumption device.

15. The apparatus of claim 14 , wherein the first metadata includes an audio code and the second metadata includes data received wirelessly from the transcoder.

16. The apparatus of claim 14 , wherein the third metadata includes a timestamp not detectable by the apparatus, and the second metadata includes the timestamp after being transcoded into a format capable of being received wirelessly by the apparatus.

17. The apparatus of claim 14 , wherein the means for processing the first metadata and the second metadata includes means for comparing the first metadata and the second metadata for consistency.

18. The apparatus of claim 14 , wherein the means for processing the first metadata and the second metadata includes means for supplementing the first metadata with the second metadata.

19. The apparatus of claim 14 , wherein the apparatus is portable, and the second metadata is received wirelessly from the transcoder.

20. The apparatus of claim 14 , further including means for receiving a query from the transcoder for information regarding a metadata detection capability of the apparatus, the second metadata determined based on a response to the query.