Koninklijke Philips Corporation N.v.

Tp Vision Holding B.v.

Janto Skowronek

Martin Franciscus McKinney

Dragan Sekulovski

Steven Leonardus Josephus Dimphina Elisabeth Van De Par

Bram Kater

Martin F Mckinney

Method, device and system for generating a light control parameter for controlling light (), e.g. ambient light, in response to an audio signal (A). The audio signal (A) is analyzed in order to extract a temporal evolution of semantic content of the audio signal (A). A light control parameter is then generated according to the temporal evolution of semantic content of the audio signal (A), either on-line or off-line. This enables generating light that is perceptually aligned with the audio signal, e.g. music. In a preferred embodiment spatial properties of the audio signal (A) are extracted, and separate light control parameters are generated for controlling light sources spatially positioned according to the spatial properties of the audio signal, e.g. for stereo or surround sound systems where light sources are positioned near each loudspeaker. Such embodiment enables spatial correspondence between light and audio. In another preferred embodiment semantically distinct temporal sections of a sequence of the audio signal (A) are determined, e.g. sections of a piece of music, and wherein the light control parameter is generated to reflect these sections of the audio signal (A). Such embodiment enables temporal changes in light that follow perceived changes in e.g. a piece of music. Applications of the described method is e.g. within home entertainment systems, theatres, jukeboxes, bars, restaurants, cinemas and discotheques.

Control of light in response to an audio signal

A method of organizing content items includes obtaining information (-) associating each of a first and at least one further label with respective sets of first content items. At least one first content item is associated with the first label in response to user input. A second content item is obtained. For each of the first and further labels, a similarity measure is calculated between a feature vector characterising the second content item and each of the feature vectors characterising first content items associated with the label. The first label is associated with the second content item upon determining that the second content item is similar to the first content items associated with the first label, according to calculated values of the similarity measure.

Method of organising content items

The method of determining a characteristic of a content item comprises the steps of selecting () data representative of a plurality of sounds from the content item, determining () a characteristic of each of the plurality of sounds by analyzing said data, each characteristic representing a temporal aspect of an amplitude of one of the plurality of sounds, and determining () the characteristic of the content item based on the plurality of determined characteristics. The characteristic of the content item and/or a genre and/or mood based on the characteristic of the content item may be associated with the content item as an attribute value. If the content item is part of a collection of content items, the attribute value can be used in a method of searching for a content item in the collection of content items. The electronic device of the invention comprises electronic circuitry. The electronic circuitry is operative to perform one or both methods of the invention.

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Eindhoven, Netherlands

Janto Skowronek