Audio software conversion method based on built-in interphone

The invention relates to an audio software conversion method based on a built-in interphone. The conversion of alarm audio software is realized only through a software algorithm. The conversion steps of the alarm audio software are as follows: opening an original alarm file in the alarm audio software, and reading the content and size of the original alarm file; extracting effective data in the original alarm file to form an intermediate alarm file; and finally, effective data in the intermediate alarm file are converted through a software algorithm to form a new alarm file. According to the method, file format conversion can be carried out on any alarm file, and the applicability is high; the new alarm file is in a unified coding format, online upgrading of the alarm audio software can be directly carried out through the new alarm file, original alarm audio software does not need to be unloaded, and the risk that the alarm file fails to be programmed in the upgrading process of the alarm audio software is fu