Abstract: An input unit receives input of an assumed listening position of sound of an object, which is a sound source, and outputs assumed listening position information indicating the assumed listening position. A position information correction unit corrects position information of each object on the basis of the assumed listening position information to obtain corrected position information. A gain/frequency characteristic correction unit performs gain correction and frequency characteristic correction on a waveform signal of an object on the basis of the position information and the corrected position information. A spatial acoustic characteristic addition unit further adds a spatial acoustic characteristic to the waveform signal resulting from the gain correction and the frequency characteristic correction on the basis of the position information of the object and the assumed listening position information. The present technology is applicable to an audio processing device.

Abstract: The present technology relates to an audio processing apparatus and method and a program that make it possible to obtain sound of higher quality. An acquisition unit acquires an audio signal and metadata of an object. A vector calculation unit calculates, based on a horizontal direction angle and a vertical direction angle included in the metadata of the object and indicative of an extent of a sound image, a spread vector indicative of a position in a region indicative of the extent of the sound image. A gain calculation unit calculates, based on the spread vector, a VBAP gain of the audio signal in regard to each speaker by VBAP. The present technology can be applied to an audio processing apparatus.

Abstract: The present technique relates to an information processing apparatus, an information processing method, and a program capable of performing appropriate remapping. An offset angle calculation section calculates an offset amount of a position of a reference screen from a reference position present in a front direction of a user, and a position information correction section corrects a position of an audio object referred with the reference position, in conformity with the position of the reference screen on the basis of the offset amount. Furthermore, an object remapping section remaps the position of the audio object in conformity with a position of a reproduction screen on the basis of the corrected position of the audio object. The present technique can be applied to an information processing apparatus.

Abstract: The present technology relates to a signal processing device and method, and a program making it possible to obtain appropriate spread information more easily. A signal processing device includes: a spread information generation unit configured to generate spread information in a frame to be processed of an audio object, on the basis of object position information in the frame to be processed of the audio object and any of spread information in an other frame different from the frame to be processed of the audio object, zoom information, and size information about the audio object. The present technology may be applied to an encoding device and a decoding device.

Abstract: The present technology relates to an encoding device, an encoding method, a reproduction device, a reproduction method, and a program enabling each reproduction equipment to reproduce an appropriate content in a simplified manner. A content data decoding unit decodes encoded metadata and outputs zoom area information, which is included in metadata acquired as a result thereof, designating an area to be zoomed. A zoom area selecting unit selects one or a plurality of pieces of zoom area information from among the zoom area information. A video segmenting unit segments a zoom area represented by the selected zoom area information in a video based on video data and outputs zoom video data acquired as a result thereof. An audio converting unit performs an audio converting process according to the selected zoom area information for audio data and outputs zoom audio data acquired as a result thereof. The present technology can be applied to a reproduction device.

Abstract: The present technique relates to an information processing apparatus, an information processing method, and a program capable of performing appropriate remapping. An offset angle calculation section calculates an offset amount of a position of a reference screen from a reference position present in a front direction of a user, and a position information correction section corrects a position of an audio object referred with the reference position, in conformity with the position of the reference screen on the basis of the offset amount. Furthermore, an object remapping section remaps the position of the audio object in conformity with a position of a reproduction screen on the basis of the corrected position of the audio object. The present technique can be applied to an information processing apparatus.

Abstract: The present technology relates to an audio signal processing device and method, an encoding device and method, and a program, which are capable of obtaining a higher quality sound. A selection unit selects, from supplied multichannel audio signals, audio signals of a channel of a dialogue sound and audio signals of a channel to be downmixed. A downmixing unit downmixes the audio signals of the channel to be downmixed. An addition unit adds the audio signals of the channel of a dialogue sound to audio signals of a predetermined channel among audio signals of one or more channels obtained in the downmixing. The present technology can be applied to a decoder.

Abstract: The present technology relates to an audio processing apparatus and method and a program that make it possible to obtain sound of higher quality. An acquisition unit acquires an audio signal and metadata of an object. A vector calculation unit calculates, based on a horizontal direction angle and a vertical direction angle included in the metadata of the object and indicative of an extent of a sound image, a spread vector indicative of a position in a region indicative of the extent of the sound image. A gain calculation unit calculates, based on the spread vector, a VBAP gain of the audio signal in regard to each speaker by VBAP. The present technology can be applied to an audio processing apparatus.

Abstract: The present technology relates a reproduction apparatus, a reproduction method, an information processing apparatus, an information processing method, and a program which can realize reproduction of highly flexible audio data while reflecting the intention of a content creator. A reproduction apparatus according to one aspect of the present technology acquires content including audio data of each of audio objects and rendering parameters of the audio data for each of a plurality of presumed listening positions, renders the audio data on the basis of the rendering parameters for a selected predetermined presumed listening position, and outputs an audio signal. The present technology can be applied to an apparatus that can reproduce object-based audio data.

Abstract: The present technology relates to an information processing device, an information processing method, and a program that enable reduction of an amount of data to be transmitted in transmission of data of a plurality of audio objects. An information processing device according to one aspect of the present technology: combines audio objects with sounds that are undistinguishable at a predetermined supposed listening position among a plurality of audio objects for the predetermined supposed listening position among a plurality of supposed listening positions; and transmits data of a combined audio object obtained by the combination, along with data of other audio objects with sounds that are distinguishable at the predetermined supposed listening position. The present technology can be applied to a device that can process object-based audio data.

Abstract: The present disclosure relates to a decoding apparatus, a decoding method, and a program that can switch, as quickly as possible, a plurality of audio encoded bit streams with synchronized reproduction timing to thereby decode and output the plurality of audio encoded bit streams. An aspect of the present disclosure provides a decoding apparatus including: an acquisition unit that acquires a plurality of audio encoded bit streams; a selection unit that determines a boundary position for switching output of the plurality of audio encoded bit streams and that selectively supplies one of the plurality of acquired audio encoded bit streams to a decoding processing unit according to the boundary position; and the decoding processing unit that applies a decoding process including IMDCT processing to the one input through the selection unit, in which the decoding processing unit skips overlap-and-add in the IMDCT processing corresponding to each frame before and after the boundary position.

Abstract: The present disclosure relates to an information processing device and information processing method capable of recognizing an acquisition position of voice data on an image. A web server transmits image frame size information indicating image frame size of image data and audio position information indicating acquisition position of voice data. The present disclosure is applicable to an information processing system or other like system including file generation device, web server, and video playback terminal to perform tiled streaming using a manner compliant with moving picture experts group phase-dynamic adaptive streaming over HTTP (MPEG-DASH).

Abstract: The present technology relates to an audio processing device, a method therefor, and a program therefor capable of achieving more flexible audio reproduction. An input unit receives input of an assumed listening position of sound of an object, which is a sound source, and outputs assumed listening position information indicating the assumed listening position. A position information correction unit corrects position information of each object on the basis of the assumed listening position information to obtain corrected position information. A gain/frequency characteristic correction unit performs gain correction and frequency characteristic correction on a waveform signal of an object on the basis of the position information and the corrected position information.

Abstract: The present technology relates to a coding device and method, and a decoding device and method, and a program capable of reducing the amount of calculations for decoding. A separating unit separates a supplied bit stream into coded data of channel sources including a dialog source, coded data of additional data sources, and coded data of dialog information. A dialog information decoding unit decodes the coded data of the dialog information. When the dialog information acquired by the decoding is presented to a viewer, the viewer selects one source from the dialog source and some additional dialog sources. An additional dialog source decoding unit decodes only the coded data of an additional dialog source selected by the viewer. An additional dialog selection unit outputs a viewer-selected audio signal from among the audio signals of the dialog source and additional dialog sources in response to the selection instruction of the viewer.

Abstract: The present technique relates to an information processing apparatus, an information processing method, and a program capable of performing appropriate remapping. An offset angle calculation section calculates an offset amount of a position of a reference screen from a reference position present in a front direction of a user, and a position information correction section corrects a position of an audio object referred with the reference position, in conformity with the position of the reference screen on the basis of the offset amount. Furthermore, an object remapping section remaps the position of the audio object in conformity with a position of a reproduction screen on the basis of the corrected position of the audio object. The present technique can be applied to an information processing apparatus.

Abstract: The present technology relates to an encoding apparatus, an encoding method, a decoding apparatus, a decoding method, and a program for obtaining sound of higher quality. An audio signal decoding section decodes encoded audio data to acquire an audio signal of each object. A metadata decoding section decodes encoded metadata to acquire a plurality of metadata about each object in each frame of the audio signal. A gain calculating section calculates VBAP gains of each object in the audio signal for each speaker based on the metadata. An audio signal generating section generates an audio signal to be fed to each speaker by having the audio signal of each object multiplied by the corresponding VBAP gain and by adding up the multiplied audio signals. The present technology may be applied to decoding apparatuses.

Abstract: The present technology relates to an audio processing apparatus and method and a program that are configured to adjust audio characteristics more easily. This audio processing apparatus has a display control unit configured, on the basis of object positional information of an audio object, to cause a display unit to display an audio object information image indicative of a position of the audio object and a selection unit configured to select the predetermined audio object from among one or a plurality of the audio objects. The present technology is applicable to video/audio processing apparatuses.

Abstract: An input unit receives input of an assumed listening position of sound of an object, which is a sound source, and outputs assumed listening position information indicating the assumed listening position. A position information correction unit corrects position information of each object on the basis of the assumed listening position information to obtain corrected position information. A gain/frequency characteristic correction unit performs gain correction and frequency characteristic correction on a waveform signal of an object on the basis of the position information and the corrected position information. A spatial acoustic characteristic addition unit further adds a spatial acoustic characteristic to the waveform signal resulting from the gain correction and the frequency characteristic correction on the basis of the position information of the object and the assumed listening position information. The present technology is applicable to an audio processing device.

Abstract: The present technique relates to an information processing apparatus, an information processing method, and a program capable of performing appropriate remapping. An offset angle calculation section calculates an offset amount of a position of a reference screen from a reference position present in a front direction of a user, and a position information correction section corrects a position of an audio object referred with the reference position, in conformity with the position of the reference screen on the basis of the offset amount. Furthermore, an object remapping section remaps the position of the audio object in conformity with a position of a reproduction screen on the basis of the corrected position of the audio object. The present technique can be applied to an information processing apparatus.

Abstract: The present technique relates to an information processing apparatus, an information processing method, and a program capable of performing appropriate remapping. An offset angle calculation section calculates an offset amount of a position of a reference screen from a reference position present in a front direction of a user, and a position information correction section corrects a position of an audio object referred with the reference position, in conformity with the position of the reference screen on the basis of the offset amount. Furthermore, an object remapping section remaps the position of the audio object in conformity with a position of a reproduction screen on the basis of the corrected position of the audio object. The present technique can be applied to an information processing apparatus.