71results about "Audio/video recording" patented technology

An object of the present invention is to provide a stereoscopic video recording method, a stereoscopic video recording medium, a stereoscopic video reproducing method, a stereoscopic video recording apparatus, and a stereoscopic video reproducing apparatus that are capable of more optimally performing recording and reproduction of stereoscopic video. According to one solving means of the present invention, a stereoscopic video recording method records, in a recording medium, stereoscopic video including left-eye images (2) and right-eye images (1) utilizing parallax information, by using a stereoscopic video recording apparatus (6). From video content that contains stereoscopic images, the method grasps the amount of variation in parallactic angle having a given or larger value, a variation time that the variation in parallactic angle takes, and the number of times that the variation in parallactic angle occurs. The method then calculates an evaluation value that corresponds to the degree of eye fatigue on the basis of the amount of variation, the variation time, and the number of times of the variation, encodes the video content in such a manner that the evaluation value is within a given range, and records the encoded video content in the recording medium.

The invention relates to a signal comprising video information and associated playback information, the video information and associated playback information being organized according to a playback format, the video information comprising a primary video stream for two-dimensional (2D) display, and an additional information stream for enabling three-dimensional (3D) display, wherein that the associated playback information comprises display information indicating the types of display possible. The invention also relates to a method and device for playback of such a signal, the method comprising receiving the video information and the associated playback information, processing the display information to determine that both two-dimensional (2D) display possible and three-dimensional (3D) display are possible for the received video information; determining a playback setting of a playback device indicating whether the video information should be displayed two-dimensional (2D) or three dimensional (3D); and processing for display either the primary video stream or the primary video stream and the additional information stream, in accordance with the playback setting of the playback device.

The invention enables the inclusion of voice and remaining audio information at different parts of the audio production process. In particular, the invention embodies special techniques for VRA-capable digital mastering, accommodation of PCPV / PCA and / or SCRA signals in audio CODECs, VRA-capable encoders and decoders, and VRA in DVD and other digital audio file formats. The invention facilitates an end-listener's voice-to-remaining audio (VRA) adjustment upon the playback of digital audio media formats by focusing on new configurations of multiple parts of the entire digital audio system, thereby enabling a new technique intended to benefit audio end-users (end-listeners) who wish to control the ratio of the primary vocal / dialog content of an audio program relative to the remaining portion of the audio content in that program. The invention facilitates storage of VRA audio programs on optical storage media, authoring systems for VRA-capable DVDs, playback hardware integrated into VRA-capable optical disc apparatus, and VRA playback hardware for use with non-VRA capable optical disc playback apparatus.

In an information recording medium, the position of each bit in the bit arrangement (800b) consisting of a plurality of bits is related to each channel corresponding to the position of each speaker in the speaker arrangement (800a) consisting of a plurality of speakers. By the value of each bit, the channel assignment information (800I) is recorded to indicate whether audio data of a corresponding channel is present. Moreover, a plurality of audio data whose presence is indicated by the channel assignment information is recorded for each channel.

An information record medium (1) is provided with: an audio information recording area on which a plurality of audio information (210) which are different in recording method are recorded; and a control information recording area on which control information (211) required to reproduce the plurality of audio information recorded on the audio information recording area is recorded. The control information recorded on the control information recording area includes a plurality of first division information for identifying first division units (260) respectively so as to divide each of the plurality of audio information recorded on the audio information recording area by the first division units respectively. The first division information, which indicates that the audio information divided by the first division units belongs to a same first division unit, is provided for each of the plurality of audio information same in content and different in recording method. The plurality of audio information same in content and different in recording method, which are identified by the first division information, are recorded on recording positions different from each other in the audio information recording area.

A recording medium in which a left-view video stream and a right-view video stream are recorded in an interleaved transport stream file. The interleaved transport stream file is identified by a combination of (i) an equivalent identification number being equivalent with the file reference information and (ii) a file extension indicating that video streams are stored in the interleaved manner, the equivalent identification number. Among Extents that constitute the interleaved transport stream file, Extents constituting the left-view or right-view video stream are identified as a normal-format transport stream file by a combination of (i) the equivalent identification number being equivalent with the file reference information and (ii) a file extension indicating that video streams are stored in a normal manner.

The present invention provides an audio apparatus including: a decoding device configured to decode results of channel-by-channel reproduction of a multichannel sound source made up of at least a left channel, a right channel, and a center channel, and to down-mix the decoded results of channel-by-channel reproduction in accordance with the number of speakers configured in a speaker system without a center speaker corresponding to the center channel; an audio processing device configured to perform predetermined audio processing on the decoded results having undergone the down-mixing by the decoding device, and to get the processed results output from the speaker system; and a control device configured to control the audio processing device.

A method includes estimating a spatial coherence between a first diffuse sound portion in a first microphone signal and a second diffuse sound portion in a second microphone signal. The first microphone signal is captured by a first microphone and the second microphone signal is captured by a second microphone which is spaced apart from the first microphone in a known manner. The method further includes defining a linear constraint for filter coefficients of a diffuse sound filter, the linear constraint being based on the spatial coherence. The method also includes calculating at least one of signal statistics and noise statistics over the first microphone signal and the second microphone signal. The method also includes determining the filter coefficients of the diffuse sound filter by solving an optimization problem concerning at least one of the signal statistics and noise statistics while considering the linear constraint for the filter coefficients.

The invention relates to a signal comprising video information and associated playback information, the video information and associated playback information being organized according to a playback format, the video information comprising a primary video stream for two-dimensional (2D) display, and an additional information stream for enabling three-dimensional (3D) display, wherein that the associated playback information comprises display information indicating the types of display possible. The invention also relates to a method and device for playback of such a signal, the method comprising receiving the video information and the associated playback information, processing the display information to determine that both two-dimensional (2D) display possible and three-dimensional (3D) display are possible for the received video information; determining a playback setting of a playback device indicating whether the video information should be displayed two-dimensional (2D) or three dimensional (3D); and processing for display either the primary video stream or the primary video stream and the additional information stream, in accordance with the playback setting of the playback device.

System and method for encoding, transmitting and decoding audio data. Audio bit steam syntax is re-organized to allow system optimizations that work well with memory latency and memory burst operations. Multiple small entropy coding tables are stored in RAM and loaded to on-chip memory as needed. Audio prediction is pipelined in the bitstream syntax. Intra frames, independent of other frames in the bitstream, are included in the bitstream for error recovery and channel change. New algorithms are implemented in legacy syntax by including the new information in the user data space of the audio frame. The new decoder can use projection to determine where the new information is and read ahead in the stream. Audio prediction from the immediately previous frame is restricted. Audio prediction is performed across channels within a single audio frame. A variable re-order function comprises storing channels of data to DRAM in the order they are decoded and reading them out in presentation order.

The present invention is for more optimally performing recording and reproduction of stereoscopic video. In the present invention, parallax information is utilized to store, in a recording medium, stereoscopic video including left-eye images and right-eye images. Particularly, for video content that contains stereoscopic images, information is obtained regarding the amount of variation in parallactic angle having a given or larger value, a variation time that the variation in parallactic angle takes, and the number of times that the variation in parallactic angle occurs. An evaluation value is calculated that corresponds to the degree of eye fatigue on the basis of the amount of variation, the variation time, and the number of times of the variation. According to the present invention, the video content is encoded in such a manner that the evaluation value is within a given range, and then recorded in the recording medium.

An information signal reproducing apparatus which is capable of forming a suitable reproducing environment and building an easy-handling reproducing system regardless of differences such as signal format or recorded media of audio data to be reproduced is provided, in which: a medium type of an optical disc and signal format information of audio data to be read from the optical disc and to be reproduced are detected by an RF signal processing circuit and a video / audio decoding unit so that a system control unit estimates whether the audio data to be reproduced is a music sound, a movie sound or another type of audio data in accordance with the detected information, and, in accordance with this estimation result, the system control unit and an interface control unit control an audio signal processing unit, an audio volume unit and a speaker amplifier unit so as to carry out a signal processing suitable for the audio data to be reproduced.

The present invention relating to an information processing device, information processing method, playing device, playing method, and program that enables playing of stereo image (3D image) contents appropriately. In the case that 3D playing using Base view video and D1 view video is instructed, "10000.ilvt (ref_to_D1-B_interteaved_file_name) described in interleaved_file_info () of the PlayList file is specified, and Base view video chunks and D1 view video chunks are read out from an optical disc through a UDF file system. The Base view video chunks and D1 view video chunks that are read out are supplied to a decoder unit and played. The present invention is applicable to a playing device compatible with the BD-ROM standard.

The present invention is for more optimally performing recording and reproduction of stereoscopic video. In the present invention, parallax information is utilized to store, in a recording medium, stereoscopic video including left-eye images and right-eye images. Particularly, for video content that contains stereoscopic images, information is obtained regarding the amount of variation in parallactic angle having a given or larger value, a variation time that the variation in parallactic angle takes, and the number of times that the variation in parallactic angle occurs. An evaluation value is calculated that corresponds to the degree of eye fatigue on the basis of the amount of variation, the variation time, and the number of times of the variation. According to the present invention, the video content is encoded in such a manner that the evaluation value is within a given range, and then recorded in the recording medium.

A recording / reproducing apparatus includes a plurality of unidirectional microphones and a plurality of direction indicator switches. The unidirectional microphones are each disposed in the periphery with a predetermined angle interval therebetween, whereas the direction indicator switches are able to indicate other directions other than a plurality of directions corresponding to the unidirectional microphones. In a normal reproducing mode, a plurality of audio signals which are picked up by the unidirectional microphones and subsequently recorded is read and reproduced in parallel. When any one of the direction indicator switches is operated, only the audio signal emitted in the designated direction is selectively read and reproduced. When another direction other than a plurality of directions corresponding to the unidirectional microphones is designated, audio signals picked up by two unidirectional microphones which are disposed to sandwich the designated direction is selectively read and reproduced.

The portable sound recorder (1) according to the invention comprises A) a plurality of microphones (1A-F) arranged for picking up voices or sounds from an external environment; B) a protective outer shell (10) that encloses: B.1) a logic unit (2) programmed or in any case arranged for processing the electrical or opto-electronic signals emitted by the plurality of microphones improving the quality of the sounds recorded; B.2) a mass memory (4) arranged for memorising and store / conserve the sounds picked up by the plurality of microphones; B.3) an electric power supply (6) that supplies the logic unit and the mass memory; and where the plurality of microphones comprises at least three microphones of the Micro-ElectroMechanical System (MEMS) type. The recorder is suitable for semi-professional use, is very small in size, can very faithfully reproduce atmosphere and directionality effects, is suitable for example for making cinematographic recordings or recordings of natural phenomena, live concerts or other music or sports events and press conferences.