Embodiments are directed to a companding method and system for reducing coding noise in an audio codec. A method of processing an audio signal includes the following operations. A system receives an audio signal. The system determines that a first frame of the audio signal includes a sparse transient signal. The system determines that a second frame of the audio signal includes a dense transient signal. The system compresses/expands (compands) the audio signal using a companding rule that applies a first companding exponent to the first frame of the audio signal and applies a second companding exponent to the second frame of the audio signal, each companding exponent being used to derive a respective degree of dynamic range compression and expansion for a corresponding frame. The system then provides the companded audio signal to a downstream device.

A plurality of types of audio signals is satisfactorily transmitted. An audio signal of each block including a plurality of frames is sequentially transmitted via a predetermined transmission line to a reception side. The audio signal in each of the blocks is a mixed signal of a plurality of types of audio signals. For example, the plurality of types of audio signals includes a plurality of types of compressed audio signals. In this case, for example, the plurality of types of compressed audio signals varies in a transfer speed or a codec. Furthermore, for example, the plurality of types of audio signals includes a compressed audio signal and a linear PCM signal.

A plurality of types of audio signals is satisfactorily transmitted. An audio signal of each block including a plurality of frames is sequentially transmitted via a predetermined transmission line to a reception side. The audio signal in each of the blocks is a mixed signal of a plurality of types of audio signals. For example, the plurality of types of audio signals includes a plurality of types of compressed audio signals. In this case, for example, the plurality of types of compressed audio signals varies in a transfer speed or a codec. Furthermore, for example, the plurality of types of audio signals includes a compressed audio signal and a linear PCM signal.

Technologies for compressing a blockchain. In some examples, the technologies include removing selected blocks within a blockchain, and replacing the selected blocks with a summary block and a padding block. Each block of the selected blocks includes data in a certain state (such as data in an obsolete state). The technologies can include generating the summary block and padding blocks according to the data in the selected blocks and an original root hash included in the selected blocks and other blocks of the blockchain. The generating of the summary and padding blocks can include generating a new root hash in the summary and padding blocks that only replaces the original root hash in the summary and padding blocks. The generation of the new root hash can be based on a part of a header of a non-selected block of the blockchain directly linked to an end block of selected blocks.

Technologies for compressing a blockchain. In some examples, the technologies include removing selected blocks within a blockchain, and replacing the selected blocks with a summary block and a padding block. Each block of the selected blocks includes data in a certain state (such as data in an obsolete state). The technologies can include generating the summary block and padding blocks according to the data in the selected blocks and an original root hash included in the selected blocks and other blocks of the blockchain. The generating of the summary and padding blocks can include generating a new root hash in the summary and padding blocks that only replaces the original root hash in the summary and padding blocks. The generation of the new root hash can be based on a part of a header of a non-selected block of the blockchain directly linked to an end block of selected blocks.

An application activation method is provided. The method includes obtaining a first compressed file, where the first compressed file contains activation information of an application and compressed content of a code package of the application. The method also includes extracting the compressed content from the first compressed file; generating a second compressed file by using the compressed content without decompressing the compressed content; and loading the second compressed file, and activating the application according to the activation information in the first compressed file.

An application activation method is provided. The method includes obtaining a first compressed file, where the first compressed file contains activation information of an application and compressed content of a code package of the application. The method also includes extracting the compressed content from the first compressed file; generating a second compressed file by using the compressed content without decompressing the compressed content; and loading the second compressed file, and activating the application according to the activation information in the first compressed file.

A data translation system (100) for performing a non-linear data translation on a digitized AC signal is provided. The non-linear data translation system (100) includes an input for receiving the digitized AC signal, an output for outputting a non-linearly translated signal, and a processing system (104) coupled to the input and to the output. The processing system (104) is configured to receive the digitized AC signal, non-linearly translate the digitized AC signal using a predetermined transfer function to create the non-linearly translated signal, and transfer the non-linearly translated signal to the output.

A data translation system (100) for performing a non-linear data translation on a digitized AC signal is provided. The non-linear data translation system (100) includes an input for receiving the digitized AC signal, an output for outputting a non-linearly translated signal, and a processing system (104) coupled to the input and to the output. The processing system (104) is configured to receive the digitized AC signal, non-linearly translate the digitized AC signal using a predetermined transfer function to create the non-linearly translated signal, and transfer the non-linearly translated signal to the output.

Systems, apparatuses, and methods related to bit string conversion are described. Circuitry can perform operations on bit strings, such as universal number and/or posit bit strings, to alter a level of precision (e.g., a dynamic range, resolution, etc.) of the bit strings. For instance, bit string conversion can include receiving, by a memory resource coupled to logic circuitry, a first bit string having a first bit string length. The first quantity of bits can comprise a first bit sub-set, a second bit sub-set, a third bit sub-set, and a fourth bit sub-set. The logic circuitry monitor numerical values corresponding to at least one bit sub-set of the bit string to determine a dynamic range corresponding to the data and/or precision corresponding to the data and generate a second bit string having a second bit string length based, at least in part, on the determined dynamic range of the data, the precision of the data.