Software radio multi-system voice codec

Abstract

The invention provides a software radio multi-system voice codec. Hardware adopts an embedded system platform, and comprises a coding module and a decoding module, and coding and decoding processing of various voices such as CVSD, G.729 and MELP is realized through an application process composed of a main process, an audio process and a coding and decoding algorithm process; the main process provides a communication port for a user, coordinates work between an audio process and a coding and decoding algorithm process and inputs configuration parameters; the audio process is used for providing volume adjustment, MIC and linear input channel switching and processing of a recording interface and a playback interface; and the encoding and decoding algorithm process provides various algorithms, and achieves encoding and decoding processing, using of configuration parameters and obtaining of an interface of the audio process. According to the invention, a plurality of voice coding algorithms are integrated in one chip, the requirement of flexible switching of a waveform system of a new-generation software radio communication radio station on voice is met, and flexible switching of radio station voice can be realized.

Description

technical field [0001] The invention relates to a software radio device, in particular to a software radio multi-standard voice codec. Background technique [0002] Language is an important means for human beings to communicate, and the most common form of data in communication systems is voice. Voice communication is one of the most basic and important ways for human beings to communicate. With the development of the social age, human beings have entered the information age rapidly, and the requirements for the utilization rate of various resources are getting higher and higher, thus promoting the development of speech codec technology. [0003] At present, military and civilian communication systems around the world have different communication environments, communication distances, channel bandwidths, and user requirements, resulting in different voice codec methods for these systems. At present, each military branch in our country has its own independent communication ...

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a software radio multi-standard voice codec, which solves the problem of a single communication mode code rate and fixed algorithm of a traditional customized radio station, and poor system flexibility. The technical solution is as follows:

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