摘要:
A TV audience survey system for determining the TV viewing activities of a plurality of individuals in a household includes a master device and multiple tags, each tag assigned to an individual. After an individual logs into the system and starts watching the TV, the master device communicates with the corresponding tag repeatedly to accumulate data representing the individual's TV viewing activities. Such data can be used to determine when the individual stops watching the TV for an extended period of time without logging out of the system and when the household member remains watching the TV after logging or being logged out of the system. The master device then reports the accumulated data to a remote server, which uses the data to determine whether the individual complies with the logging protocol defined by the TV audience survey system and update the TV viewership data associated with this household.
摘要:
Systems and methods are configured to process audio signals to identify content-types. Audio content is received at an audio decoder which decodes the audio content. The decoded audio content is segmented into frames by applying a windowing function to a given audio frame using a window having a time width related to a delay time of the decoder. A power spectrum estimate of a given frame is determined. A mel filter bank is applied to the power spectrum of the frame. A DCT matrix is applied to filter bank energies to generate a DCT output. A log of the DCT output is used to generate a mel coefficient 1. A threshold for the content is dynamically determined. The mel coefficient 1 and the dynamically determined threshold are used to detect a near silence between content-types and to identify the content-types.
摘要:
Methods and apparatus to extract audio codes are disclosed. An example method includes receiving signals on a plurality of channels (101-104) and ranking the signals based on at least one characteristic of the signals via a signal ranker (108). A first channel from the plurality of channels is selected based upon the ranking of the signals via a channel selector (110). The example method further include determining whether a first signal on the first channel includes at least one code and extracting the at least one code from the first signal when the first signal includes the at least one code.
摘要:
In one embodiment, a method implemented on a computing device for deriving timeline metadata for video content includes: capturing timeline elements through analysis of at least one of audio, visual or language aspects of the video content, interpreting the timeline elements according to associated inferences as indicative of timeline states, evaluating combinations of the timeline states according to a set of rules to derive timeline metadata, where the timeline metadata is associated with at least a portion of the video content.
摘要:
A method and apparatus for identifying audio information, which fall within the technical field of audio identification, are provided. The method for identifying audio information includes: identifying audio that is being played to obtain audio information of the audio (101); displaying links that are configured for the keywords in the audio information on an information presentation interface (102); when the links are triggered, displaying prestored information corresponding to the keywords (103). The audio information of the audio that is being played is obtained by identifying the audio, the links that are configured for the keywords in the audio information are displayed, and the prestored information corresponding to the keywords is displayed when the link is triggered.link