Methods, apparatus and articles of manufacture to identify sources of network streaming services
AssigneeThe Nielsen Company (US), LLC
InventorsZafar Rafii, Markus Cremer, Bongjun Kim
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Abstract
Methods, apparatus and articles of manufacture to identify sources of network streaming services are disclosed. An example apparatus includes a coding format identifier to identify, from a received first audio signal representing a decompressed second audio signal, an audio compression configuration used to compress a third audio signal to form the second audio signal, and a source identifier to identify a source of the second audio signal based on the identified audio compression configuration.
Claims20
An apparatus to identify audio sources, the apparatus comprising:
- interface circuitry to obtain an audio signal;
- computer readable instructions;
- and
- programmable circuitry to instantiate:
- an average computer to compute:
- a first plurality of averages corresponding to first data within a first plurality of spectrograms, the first data corresponding to the audio signal;
- and
- a second plurality of averages corresponding to second data within a second plurality of spectrograms, the second data corresponding to the audio signal;
- a difference computer to compute:
- a first plurality of differences between the first plurality of averages;
- and
- a second plurality of differences between the second plurality of averages;
- a peak identifier to identify:
- a first peak as the largest value of the first plurality of differences;
- a second peak as the largest value of the second plurality of differences;
- and
- a controller to select one of a first trial compression configuration or a second trial compression configuration based on a comparison of the first peak and second peak, the selected trial compression configuration corresponding to a source of the audio signal.
A non-transitory machine readable storage medium comprising instructions to cause programmable circuitry to at least:
- compute a first plurality of averages corresponding to first data within a first plurality of spectrograms, the first data corresponding to an audio signal;
- compute a second plurality of averages corresponding to second data within a second plurality of spectrograms, the second data corresponding to the audio signal;
- compute a first plurality of differences between the first plurality of averages;
- compute a second plurality of differences between the second plurality of averages;
- identify a first peak as the largest value of the first plurality of differences;
- identify a second peak as the largest value of the second plurality of differences;
- and
- select one of a first trial compression configuration or a second trial compression configuration based on a comparison of the first peak and second peak, the selected trial compression configuration corresponding to a source of the audio signal.
A method to identify audio sources, the method comprising:
- computing a first plurality of averages corresponding to first data within a first plurality of spectrograms, the first data corresponding to an audio signal;
- computing a second plurality of averages corresponding to second data within a second plurality of spectrograms, the second data corresponding to the audio signal;
- computing a first plurality of differences between the first plurality of averages;
- computing a second plurality of differences between the second plurality of averages;
- identifying a first peak as the largest value of the first plurality of differences;
- identifying a second peak as the largest value of the second plurality of differences;
- and
- selecting one of a first trial compression configuration or a second trial compression configuration based on a comparison of the first peak and second peak, the selected trial compression configuration corresponding to a source of the audio signal.
Dependencies are inferred from the claim text.