FPGA implementation of 2D interactive sound communication system

A 2D interactive sound communication (2DISC) system and the associated system-on-chip are proposed in this paper. The system provides an intelligent way of communicating with stereophonic sound to enhance human cognitive ability during sound communication. The system generates stereophonic sound using mono sound sources and the positions of the listener and the speaker provided by a GPS. This stereophonic sound allows the listener to determine the position of the speaker simply by listening to the sound. Optimized stereophonic sound generating methods are embedded in the system, resulting in a small-sized design. The system can easily replace the currently popular communication systems that use the mono sound sources such as walkie-talkies or citizens´ band transceivers. Several tests are carried out successfully using an FPGA board and a PC to demonstrate the applicability of the proposed system.