The Design Of The Telephone Recording System Based On Hi3515

Since its invention, the telephone has become a necessity of daily life has become the main tool for people to communicate with each other and communicate. And with the increasing demand of the people, by the parties recording phone also increasingly popular.Recording telephone voice communication is through the monitoring of the telephone line signal, and these signals can be saved into a medium and playback techniques or methods. Recording phone technology has undergone three innovations that first-generation analog telephone recording technology, the second generation of digital recording technology and the third generation smart phone call recording technology. The first generation of analog recording phone technology. The most representative products is a tape recording telephone, but the tape recording telephone sound quality is poor, the tape is easy to moisture deterioration, is not conducive to long-term preservation of information, the data can not be precise positioning telephone recording, play recorded files can only tape recording sequence. The second generation refers to the use of digital recording telephone recording telephone technology. Digital recording telephone recording telephone industry is the development of a major breakthrough in quality, can be permanently stored phone data, but it must be implemented for manual data backup and storage, and it is difficult to achieve data backup and information queries across regions. Currently the third generation smart phone technology is not only a clear telephone recording audio file sound quality, easy access, and support inter-regional network upload audio files, and more secure access control technology.This article discusses the possibility Hi3515 based platform to achieve the third generation of recording calls. Telephone verification to achieve a specific data acquisition, analysis, voice and data format conversion and storage, and data query and sharing.