# US 10,375,439 B2 · Information processing apparatus and information processing method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,375,439 B2 - Document ID: US10375439B2 - Status: Granted - Kind: B2 - Application number: 15/311,950 - Filed: 2015-05-22 - Published: 2017-05-04 - Granted: 2019-08-06 - Earliest claimed: 2014-05-30 - Assignees: Sony Corporation - Applicants: Sony Corporation - Inventors: Mitsuhiro Hirabayashi; Toru Chinen; Yuki Yamamoto; Runyu Shi - Web page: https://patentgrep.com/patent/US10375439B2 ## CPC - H04N 21/439: Processing of audio elementary streams - G10K 15/02: Synthesis of acoustic waves (synthesis of speech G10L13/00) - G10L 19/00: Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis (in musical instruments G10H) - G10L 19/008: Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing - G11B 27/00: Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel - H04N 21/233: Processing of audio elementary streams {(monitoring, identification or recognition of audio in broadcast systems H04H60/58)} - H04N 21/23439: {for generating different versions} - H04N 21/8106: {involving special audio data, e.g. different tracks for different languages} - H04N 21/8456: {by decomposing the content in the time domain, e.g. in time segments} - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION - G10K: SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR - G10L: SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING - G11B: INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER (recording measured values in a way that does not require playback through a transducer G01D9/00; recording or playback apparatus using mechanically marked tape, e.g. punched paper tape, or using unit records, e.g. punched or magnetically marked cards G06K; transferring data from one type of record carrier to another G06K1/18; circuits for coupling output of reproducer to radio receiver H04B1/20; gramophone pick-ups or like acoustic electromechanical transducers or circuits therefor H04R) ## Abstract The present disclosure relates to an information processing apparatus and an information processing method which are capable of improving an efficiency of acquiring a predetermined type of audio data among a plurality of types of audio data. Audio data of a predetermined track is acquired in one audio file in which audio data of 3D audio is divided into a plurality of tracks depending on the type of 3D audio and the tracks are arranged, the audio data of each track being successively arranged in the file for a predetermined length of time. The present disclosure is applicable to, for example, an information processing system including a file generation device that generates a file, a Web server that records a file generated by the file generation device, and a video playback terminal that plays back a file. ## Claims ### Claim 1 An information processing apparatus, comprising: a file generation unit configured to: generate a single audio stream which has a structure divided into a plurality of tracks for each type of a plurality of audio data items, wherein each type of the plurality of audio data items is different; generate an audio file that includes the single audio stream; and generate a plurality of files in unit of segment for each track of the single audio stream, wherein the plurality of files includes data associated with each track of the plurality of tracks, wherein the data associated with each track of the plurality of tracks is successively arranged in the generated plurality of files, wherein a time duration associated with each of the plurality of files is a specific length of time, and wherein each of the plurality of files includes: a moof box, and a mdat box. ### Claim 2 (depends on 1) The information processing apparatus according to claim 1, wherein the plurality of audio data items corresponds to a Channel audio, an Object audio, a higher-order ambisonic (HOA) audio, and metadata. ### Claim 3 (depends on 1) The information processing apparatus according to claim 1, wherein the data corresponding to a specific file of the plurality of files is arranged in the mdat box of the specific file of the plurality of files, and wherein the plurality of files further includes position information that indicates a position of the mdat box in each file of the plurality of files. ### Claim 4 (depends on 1) The information processing apparatus according to claim 1, wherein the moof box and the mdat box are common to the plurality of tracks, wherein the data corresponding to a specific file of the plurality of files is arranged in the mdat box of the specific file, and wherein the plurality of files further includes position information indicating a position of the data corresponding to the specific file of the plurality of files. ### Claim 5 (depends on 1) The information processing apparatus according to claim 1, further comprising a control file generation unit configured to generate a control file which includes first information that indicates a reference relationship between the plurality of tracks. ### Claim 6 (depends on 1) The information processing apparatus according to claim 1, further comprising a storage unit configured to arrange second information as a single track, wherein the second information corresponds to the single audio stream. ### Claim 7 (depends on 1) The information processing apparatus according to claim 1, wherein the file generation unit is further configured to arrange second information as a base track that is different from the plurality of tracks, and wherein the second information corresponds to the single audio stream. ### Claim 8 (depends on 7) The information processing apparatus according to claim 7, further comprising a media presentation description (MPD) generation unit configured to generate an MPD file, wherein third information to access the plurality of tracks and fourth information on audio stream for each type of the plurality of audio data items are stored in SubRepresentation field of the generated MPD file. ### Claim 9 (depends on 8) The information processing apparatus according to claim 8, wherein the fourth information includes a reference relationship between a first track of the plurality of tracks and a second track of the plurality of tracks. ### Claim 10 (depends on 8) The information processing apparatus according to claim 8, wherein the fourth information includes object position information for a plurality of objects that are inputted corresponding to the single audio stream.