Information processing apparatus, method, and program
AssigneeSony Corporation
InventorsAkiko Inoue, Shusuke Takahashi, Masayuki Nishiguchi
Life of this patent
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Abstract
An information processing apparatus for reproducing second content in synchronization with reproduction of first content by a second information processing apparatus different from the information processing apparatus, the first content comprising audio content. The information processing apparatus comprising circuitry configured to: extract a first feature from the audio content; obtain a second feature of the audio content, the second feature being together with the second content; compare the first feature with the second feature; and generate, based on results of the comparing, synchronization information used for reproducing the second content in synchronization with the first content.
Claims3
A signal processing apparatus, comprising:
- a frequency band dividing unit configured to divide a sound signal included in a first content into a plurality of frequency bands;
- a periodicity detection unit configured to detect periodicity information of each frequency band supplied from the frequency band dividing unit;
- a periodicity information merging unit configured to merge the periodicity information detected by the periodicity detection unit;
- a peak detection unit configured to generate peak information by detecting a peak position of the merged periodicity information;
- a downsampling unit configured to downsample the peak information for a plurality of time sections to a downsampled peak information for a time section;
- and
- an output unit configured to output the downsampled peak information as a synchronization feature amount for synchronizing a second content with the first content.
A method, comprising:
- dividing a sound signal included in a first content into a plurality of frequency bands;
- detecting periodicity information of each frequency band supplied from the frequency band dividing unit;
- merging the periodicity information detected by the periodicity detection unit;
- generating peak information by detecting a peak position of the merged periodicity information;
- downsampling the peak information for a plurality of time sections to a downsampled peak information for a time section;
- and
- outputting the downsampled peak information as a synchronization feature amount for synchronizing a second content with the first content.
At least one non-transitory computer readable storage medium storing processor-executable instructions that, when executed by at least one computer, cause the at least one computer to perform a method, comprising:
- dividing a sound signal included in a first content into a plurality of frequency bands;
- detecting periodicity information of each frequency band supplied from the frequency band dividing unit;
- merging the periodicity information detected by the periodicity detection unit;
- generating peak information by detecting a peak position of the merged periodicity information;
- downsampling the peak information for a plurality of time sections to a downsampled peak information for a time section;
- and
- outputting the downsampled peak information as a synchronization feature amount for synchronizing a second content with the first content.
Dependencies are inferred from the claim text.