Aiming at the problems of the traditional text to speech (TTS) systems

such as poor real-time character

high utilization of hardware resources

low efficiency of high-capacity speech data processing

it proposes the use of the SmartFusion FPGA (Field Programmable Gate Array) as the platform of hardware development. A TTS system was designed

based on FPGA. Firstly

the FatFs file system was transplanted to the Cortex-M3 hardcore of FPGA with the chip integrated. Then

hardware and software were made to work cooperatively

Cortex-M3 hardcore and FatFs file system were responsible for finding voice files and doing software analysis

and FPGA hardware was used to read the text contents and play the voice. Experimental results show that the TTS system has higher efficiency of processing voice files

shorter time of TTS conversion

and clear and fluent playback of the voice. The TTS system is stable and easy to implement.