Systems and techniques are provided to transmit data over a digital interface between a sender and a receiver. The digital interface is configured for transmitting a primary type of data as opposed to a secondary type of data. Nevertheless, systems and techniques are provided where the secondary type of data can be transmitted in the digital interface. As such, the primary and/or secondary types of data are transmitted from the sender to the receiver via the digital interface. The primary and secondary types of data may be different and/or unrelated and could be any type of data including, but not limited to, audio data, general data, and bulk data. Yet, the received primary and secondary types of data are still useful after the transmission.

An apparatus including at least one processor and at least one memory including computer code for one or more programs, the at least one memory and the computer code configured, with the at least one processor, to cause the apparatus at least to: generate content lock information for a content lock, wherein the content lock information enables control of audio signal processing associated with audio signals related to one or more audio sources based on a position and/or orientation input.

A system for obtaining content for display to a user of a head-mountable display device, HMD, the system comprising one or more audio detection units operable to capture audio in the environment of the user, a motion prediction unit operable to predict motion of the HMD in dependence upon the captured audio, and a content obtaining unit operable to obtain content for display in dependence upon the predicted motion of the HMD.

A processing load at a receiving side is reduced in a case where a plurality of classes of audio data is transmitted. A predetermined number of audio streams including coded data of a plurality of groups is generated and a container of a predetermined format having this predetermined number of audio streams is transmitted. Command information for creating a command specifying a group to be decoded from among the plurality of groups is inserted into the container and/or the audio stream. For example, a command insertion area for the receiving side to insert a command for specifying a group to be decoded is provided in at least one audio stream among the predetermined number of audio streams.

A method comprises, at a hybrid radio receiver configured to recover audio content separately from a broadcast radio signal and from a wireless network connection, receiving a reception metric that indicates audio quality of the audio content in the broadcast radio signal at any given time. The method further comprises, deriving, from fluctuations of the reception metric over time, fluctuation indicators that indicate audio quality fluctuations that are likely noticeable to a listener. The method further comprises deriving a switching decision to use the broadcast radio signal or the wireless network connection as a source of the audio content based on a previous switching decision and the fluctuation indicators to introduce hysteresis into the switching decision, and selecting the broadcast radio signal or the wireless network connection as the source of the audio content based on the switching decision.

A system and method are provided for an AV device for use with a video player, one or more speakers, and encoded AV data. The encoded AV data includes multiplexed encoded video data and encoded audio data. The AV device is connected to the speakers via wireless channels. The AV device is able to determine channel delays associated with each wireless channel; synchronize program clocks of the video player and speakers; determine and modify buffer levels of each speaker; demultiplex the encoded AV data to obtain encode video data and encoded audio data; and provide prefetched portions of encoded audio data based on buffer levels.

A commentary video generation method and apparatus, server, and storage medium. The method includes: obtaining a game instruction frame, the game instruction frame including at least one game operation instruction, and the game operation instruction being used for controlling a virtual object; generating a commentary data stream based on the game instruction frame, the commentary data stream including at least one piece of commentary audio describing a game event, and the game event being triggered during the virtual object performing the in-game behavior; rendering a game screen based on the game instruction frame to generate a game video stream, the game video stream including at least one game video frame; and combining the commentary data stream with the game video stream, the game video frame and the commentary audio corresponding to the same game event in the commentary video stream being aligned in time.

A signal processing method includes inputting a sound signal to each of a plurality of signal processing blocks of different types, signal-processing the sound signal input to each of the plurality of signal processing blocks based on setting data that indicate one or a plurality of parameters, selecting an operated parameter operated by a parameter operation in response to receiving the parameter operation for the one or the plurality of parameters, storing the setting data that indicate the one or the plurality of parameters that include the operated parameter, and reading out, from among the stored setting data, only the operated parameter that is selected, and deploying the operated parameter that is read out to at least one of the plurality of signal processing blocks, in response to receiving a recall operation for reading out the stored setting data.

A method and system for adding overtly human-perceptible supplemental audio content into a media stream to help mask audio effects of an audio watermark in the media stream. A method involves receiving a media stream that defines a sequence of audio content presentable by a content presentation device, modifying the media stream to produce a modified media stream that defines the sequence of audio content, and outputting the modified media stream for presentation by the content presentation device. The modified media stream includes an audio watermark that is machine-detectable to trigger an interactive event. Further, the act of modifying the media stream involves adding into the media stream supplemental audio content coincident with the audio watermark, to help mask the audio watermark in the modified media stream during presentation of the modified media stream by the content presentation device.

An apparatus, method and computer program product for: providing spatial audio content for output via at least one loudspeaker, determining a position of at least one audio device operatively connected to the at least one loudspeaker, providing, in response to determining that the position of the at least one audio device corresponds to an audio zone associated with additional spatial audio content, the additional spatial audio content for output via the at least one audio device, receiving an instruction to include the additional spatial audio content in the spatial audio content, and supplementing, in response to receiving the instruction to include the additional spatial content in the spatial audio content, the spatial audio content with the additional spatial audio such that the additional spatial audio content is provided for output independent of the audio zone.