Abstract: An apparatus for processing a signal and method thereof are disclosed. Data coding and entropy coding are performed with interconnection, and grouping is used to enhance coding efficiency. The present invention includes the steps of obtaining a difference value and index information and entropy-decoding the index information and identifying an entropy table corresponding to the entropy-decoded index information and entropy-decoding the difference value using the identified entropy table and obtaining data using a reference value corresponding to a plurality of data and the decoded difference value.

Abstract: The present invention relates to an apparatus for processing an audio signal and method thereof.

Abstract: The present invention relates to an apparatus for processing an audio signal and method thereof. The present invention includes a receiving unit receiving a downmix signal comprising plural objects, a bitstream including object information and level guide information, and a graphical user interface receiving a user input for controlling level for at least one object among the plural objects, and displaying a representation corresponding to the level guide information, wherein the object information is determined when the downmix signal is generated, the level guide information indicates rendering limit for at least one object of the plural objects, the representation includes a non-recommended rendering region representing the rendering limit and a recommended rendering region representing rendering range except for the rendering limit.

Abstract: An apparatus for processing an audio signal and method thereof, comprising receiving a downmix signal comprising at least one normal object signal, and bitstream including object information determined when the downmix signal is generated; extracting extension type identifier indicating whether the downmix signal further comprises a multi-channel object signal, from extension part of the bitstream; when the extension type identifier indicates that the downmix signal further comprise multi-channel object signal, extracting first spatial information from the bitstream; and, transmitting at least one of the first spatial information and the second spatial information; wherein the first spatial information is determined when a multi-channel source signal are downmixed into the multi-channel object signal, wherein the second information is generated using the object information and mix information, are disclosed.

Abstract: A method of processing an audio signal is disclosed. The present invention includes receiving the audio signal including object information, obtaining correlation information indicating whether an object is grouped with other object from the received audio signal, and obtaining one meta information common to grouped objects based on the correlation information.

Abstract: A method of processing an audio signal is disclosed. The present invention comprises receiving a downmix signal, object information and preset information, generating downmix processing information using the object information and the preset information, processing the downmix signal using the downmix processing information, and generating multi-channel information using the object information and the preset information, wherein the preset information is extracted from a bitstream. Accordingly, a gain and panning of an object can be easily controlled without user's setting for each object using preset information set in advance. And, a gain and panning of an object can be controlled using preset information modified based on a selection made by a user.

Abstract: Spatial information associated with an audio signal is encoded into a bitstream, which can be transmitted to a decoder or recorded to a storage media. The bitstream can include different syntax related to time, frequency and spatial domains. In some embodiments, the bitstream includes one or more data structures (e.g., frames) that contain ordered sets of slots for which parameters can be applied. The data structures can be fixed or variable. The data structure can include position information that can be used by a decoder to identify the correct slot for which a given parameter set is applied. The slot position information can be encoded with either a fixed number of bits or a variable number of bits based on the data structure type.

Abstract: Spatial information associated with an audio signal is encoded into a bitstream, which can be transmitted to a decoder or recorded to a storage media. The bitstream can include different syntax related to time, frequency and spatial domains. In some embodiments, the bitstream includes one or more data structures (e.g., frames) that contain ordered sets of slots for which parameters can be applied. The data structures can be fixed or variable. The data structure can include position information that can be used by a decoder to identify the correct slot for which a given parameter set is applied. The slot position information can be encoded with a fixed number of bits or a variable number of bits based on the data structure type.

Abstract: A method for generating an encoded audio signal, and a method for processing the same during the multi-channel audio coding are disclosed. The present invention provides the method for generating an encoded audio signal comprising: including basic configuration information requisite for a multi-channel audio coding process; and including extension configuration information, wherein the extension configuration information includes configuration information of extension environment which is identified by a type identifier (ID).

Abstract: The disclosed embodiments include systems, methods, apparatuses, and computer-readable mediums for compensating one or more signals and/or one or more parameters for time delays in one or more signal processing paths.

Abstract: An apparatus for processing a signal and method thereof are disclosed. Data coding and entropy coding are performed with interconnection, and grouping is used to enhance coding efficiency. The present invention includes the steps of obtaining a reference value corresponding to a plurality of data and a difference value corresponding to the reference value and entropy-decoding the difference value and obtaining the data using the reference value and the entropy-decoded difference value.

Abstract: An apparatus for processing a signal and method thereof are disclosed. Data coding and entropy coding are performed with interconnection, and grouping is used to enhance coding efficiency. The present invention includes the steps of obtaining a pilot reference value corresponding to a plurality of data and a pilot difference value corresponding to the pilot reference value and obtaining the data using the pilot reference value and the pilot difference value.

Abstract: An apparatus for processing a signal and method thereof are disclosed. Data coding and entropy coding are performed with interconnection, and grouping is used to enhance coding efficiency. The present invention includes the steps of obtaining a group reference value corresponding to a plurality of data included in one group through data grouping and internal grouping for the data grouping and a difference value corresponding to the group reference value and obtaining the data using the group reference value and the difference value.

Abstract: Data coding and entropy coding are performed with interconnection, and grouping is used to enhance coding efficiency. The present invention includes the steps of obtaining a group reference value corresponding to a plurality of data included in one group through first grouping and external grouping for the first grouping and a difference value corresponding to the group reference value and obtaining the data using the group reference value and the difference value.

Abstract: An apparatus for processing a signal and method thereof are disclosed. Data coding and entropy coding are performed with interconnection, and grouping is used to enhance coding efficiency. The present invention includes the steps of obtaining index information and entropy-decoding the index information and identifying a content corresponding to the entropy-decoded index information and selecting entropy table.

Abstract: The disclosed embodiments include systems, methods, apparatuses, and computer-readable mediums for compensating one or more signals and/or one or more parameters for time delays in one or more signal processing paths.

Abstract: A method of processing an audio signal is disclosed. The present invention includes receiving downmix information, object information and mix information, generating and transferring multi-channel information using at least one of the downmix information, the object information and the mix information, and selectively generating and transferring either first gain information or extra multi-channel information including second gain information in accordance with a decoding mode using at least one of the object information and the mix information.

Abstract: A method of processing an audio signal, comprising: receiving a downmix signal, a residual signal and object information; extracting at least one of a background-object signal and a foreground-object signal from the downmix signal using the residual signal; receiving mix information comprising gain control information for the background-object signal; generating a downmix processing information based on the object information and the mix information; and, generating a processed downmix signal comprising a modified background-object signal to which an adjusted gain corresponding to the gain control information is applied, by applying the downmix processing information to the at least one of the background-object signal and the foreground-object signal is disclosed.

Abstract: A method of processing an audio signal is disclosed. The present invention includes receiving downmix information of at least one downmixed object signal, obtaining side information including object information, and mix information, generating plural channel information based on the side information and the mix information, and generating an output channel signal from the downmix information using the plural channel information, wherein the object information includes at least one of level information of the object signal, correlation information of the object signal, gain information of the object signal and supplementary information thereof.

Abstract: A method for processing an audio signal, comprising the steps of extracting an ancillary signal for generating the audio signal, an extension signal included in the ancillary signal, and header identification information indicating whether a header is included in the ancillary signal from a received bit stream, reading length information of the extension signal from the header if the header is included in the ancillary signal according to the header identification information, skipping decoding of the extension signal or not using a result of the decoding based on the length information, and generating the audio signal using the ancillary signal. Accordingly, in case of processing the audio signal by the present invention, it is able to reduce a corresponding load of operation to enable efficient processing and enhance a sound quality.