CPC Class G10K

A content acquisition unit extracts a divided block having an evaluation value equal to or more than a threshold value from among content in which each of divided blocks is associated with an evaluation value and is managed by a content asset management apparatus, and acquires the extracted divided block as delivery data. When a user pays a usage fee to receive the delivery of the extracted divided block, a delivery control unit performs control to deliver the delivery data to a user terminal of the user.

A method performed by a wearable audio output device worn by a user is provided for controlling external noise attenuated by wearable audio output device. A speech is detected from a user wearing the wearable audio output device, wherein the audio output device has active noise reduction turned on. It is determined, based on the detecting, that the user desires to speak to a subject in the vicinity of the user. In response to the determining, a level of noise reduction is reduced to enable the user to hear sounds external to the audio output device. It is determined that the user desires to speak to the subject by detecting at least one condition of a plurality of conditions.